This is a more general answer to the missing "Select cond1, stmt1, ... else stmtelse" connstruction in R. It's a bit gassy, but it works an resembles the switch statement present in C
while (TRUE) {
if (is.na(val)) {
val <- "NULL"
break
}
if (inherits(val, "POSIXct") || inherits(val, "POSIXt")) {
val <- paste0("#", format(val, "%Y-%m-%d %H:%M:%S"), "#")
break
}
if (inherits(val, "Date")) {
val <- paste0("#", format(val, "%Y-%m-%d"), "#")
break
}
if (is.numeric(val)) break
val <- paste0("'", gsub("'", "''", val), "'")
break
}
Use android vollley, it is very fast and you can betterm manipulate requests. Send post request using Volley and receive in PHP
Basically, you will create a map with key-value params for the php request(POST/GET), the php will do the desired processing and you will return the data as JSON(json_encode()). Then you can either parse the JSON as needed or use GSON from Google to let it do the parsing.
I have been there, like so many of us. There are so many confusing words like Web API, REST, RESTful, HTTP, SOAP, WCF, Web Services... and many more around this topic. But I am going to give brief explanation of only those which you have asked.
It is neither an API nor a framework. It is just an architectural concept. You can find more details here.
I have not come across any formal definition of RESTful anywhere. I believe it is just another buzzword for APIs to say if they comply with REST specifications.
EDIT: There is another trending open source initiative OpenAPI Specification (OAS) (formerly known as Swagger) to standardise REST APIs.
It in an open source framework for writing HTTP APIs. These APIs can be RESTful or not. Most HTTP APIs we write are not RESTful. This framework implements HTTP protocol specification and hence you hear terms like URIs, request/response headers, caching, versioning, various content types(formats).
Note: I have not used the term Web Services deliberately because it is a confusing term to use. Some people use this as a generic concept, I preferred to call them HTTP APIs. There is an actual framework named 'Web Services' by Microsoft like Web API. However it implements another protocol called SOAP.
I have to find distinct rows with the following details
class : Scountry
columns: countryID, countryName,isactive
There is no primary key in this. I have succeeded with the followin queries
public DbSet<SCountry> country { get; set; }
public List<SCountry> DoDistinct()
{
var query = (from m in country group m by new { m.CountryID, m.CountryName, m.isactive } into mygroup select mygroup.FirstOrDefault()).Distinct();
var Countries = query.ToList().Select(m => new SCountry { CountryID = m.CountryID, CountryName = m.CountryName, isactive = m.isactive }).ToList();
return Countries;
}
In case you have both python 2 and 3 in your path, you can move up the Python27 folder in your path, so it search and executes python 2 first.
The question was about the Popupwindow
class, yet everybody has given answers that use the Dialog
class. Thats pretty much useless if you need to use the Popupwindow
class, because Popupwindow
doesn't have a getWindow()
method.
I've found a solution that actually works with Popupwindow
. It only requires that the root of the xml file you use for the background activity is a FrameLayout
. You can give the Framelayout
element an android:foreground
tag. What this tag does is specify a drawable resource that will be layered on top of the entire activity (that is, if the Framelayout is the root element in the xml file). You can then control the opacity (setAlpha()
) of the foreground drawable.
You can use any drawable resource you like, but if you just want a dimming effect, create an xml file in the drawable folder with the <shape>
tag as root.
<?xml version="1.0" encoding="utf-8"?>
<shape
xmlns:android="http://schemas.android.com/apk/res/android"
android:shape="rectangle" >
<solid android:color="#000000" />
</shape>
(See http://developer.android.com/guide/topics/resources/drawable-resource.html#Shape for more info on the shape
element).
Note that I didn't specify an alpha value in the color tag that would make the drawable item transparent (e.g #ff000000
). The reason for this is that any hardcoded alpha value seems to override any new alpha values we set via the setAlpha()
in our code, so we don't want that.
However, that means that the drawable item will initially be opaque (solid, non-transparent). So we need to make it transparent in the activity's onCreate()
method.
Here's the Framelayout xml element code:
<FrameLayout
xmlns:android="http://schemas.android.com/apk/res/android"
android:id="@+id/mainmenu"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:foreground="@drawable/shape_window_dim" >
...
... your activity's content
...
</FrameLayout>
Here's the Activity's onCreate() method:
public void onCreate( Bundle savedInstanceState)
{
super.onCreate( savedInstanceState);
setContentView( R.layout.activity_mainmenu);
//
// Your own Activity initialization code
//
layout_MainMenu = (FrameLayout) findViewById( R.id.mainmenu);
layout_MainMenu.getForeground().setAlpha( 0);
}
Finally, the code to dim the activity:
layout_MainMenu.getForeground().setAlpha( 220); // dim
layout_MainMenu.getForeground().setAlpha( 0); // restore
The alpha values go from 0
(opaque) to 255
(invisible).
You should un-dim the activity when you dismiss the Popupwindow.
I haven't included code for showing and dismissing the Popupwindow, but here's a link to how it can be done: http://www.mobilemancer.com/2011/01/08/popup-window-in-android/
I do wonder if perhaps you should iterate over the exploded HTTP_X_FORWARDED_FOR in reverse order, since my experience has been that the user's IP address ends up at the end of the comma-separated list, so starting at the start of the header, you're more likely to get the ip address of one of the proxies returned, which could potentially still allow session hijacking as many users may come through that proxy.
In PowerShell you should do this:
(Get-ChildItem C:\TEMP\file1.txt).Length
SET string=bath Abath Bbath XYZbathABC
SET modified=%string:bath=hello%
ECHO %string%
ECHO %modified%
EDIT
Didn't see at first that you wanted the replacement to be preceded by reading the string from a file.
Well, with a batch file you don't have much facility of working on files. In this particular case, you'd have to read a line, perform the replacement, then output the modified line, and then... What then? If you need to replace all the ocurrences of 'bath' in all the file, then you'll have to use a loop:
@ECHO OFF
SETLOCAL DISABLEDELAYEDEXPANSION
FOR /F %%L IN (file.txt) DO (
SET "line=%%L"
SETLOCAL ENABLEDELAYEDEXPANSION
ECHO !line:bath=hello!
ENDLOCAL
)
ENDLOCAL
You can add a redirection to a file:
ECHO !line:bath=hello!>>file2.txt
Or you can apply the redirection to the batch file. It must be a different file.
EDIT 2
Added proper toggling of delayed expansion for correct processing of some characters that have special meaning with batch script syntax, like !
, ^
et al. (Thanks, jeb!)
window.location.search.slice(1).split('&').reduce((res, val) => ({...res, [val.split('=')[0]]: val.split('=')[1]}), {})
Here are categories for NSArray and NSDictionary to make this super-easy. I've added an option for pretty-print (newlines and tabs to make easier to read).
@interface NSDictionary (BVJSONString)
-(NSString*) bv_jsonStringWithPrettyPrint:(BOOL) prettyPrint;
@end
.
@implementation NSDictionary (BVJSONString)
-(NSString*) bv_jsonStringWithPrettyPrint:(BOOL) prettyPrint {
NSError *error;
NSData *jsonData = [NSJSONSerialization dataWithJSONObject:self
options:(NSJSONWritingOptions) (prettyPrint ? NSJSONWritingPrettyPrinted : 0)
error:&error];
if (! jsonData) {
NSLog(@"%s: error: %@", __func__, error.localizedDescription);
return @"{}";
} else {
return [[NSString alloc] initWithData:jsonData encoding:NSUTF8StringEncoding];
}
}
@end
.
@interface NSArray (BVJSONString)
- (NSString *)bv_jsonStringWithPrettyPrint:(BOOL)prettyPrint;
@end
.
@implementation NSArray (BVJSONString)
-(NSString*) bv_jsonStringWithPrettyPrint:(BOOL) prettyPrint {
NSError *error;
NSData *jsonData = [NSJSONSerialization dataWithJSONObject:self
options:(NSJSONWritingOptions) (prettyPrint ? NSJSONWritingPrettyPrinted : 0)
error:&error];
if (! jsonData) {
NSLog(@"%s: error: %@", __func__, error.localizedDescription);
return @"[]";
} else {
return [[NSString alloc] initWithData:jsonData encoding:NSUTF8StringEncoding];
}
}
@end
The issue is that you're not saving the mysqli connection. Change your connect to:
$aVar = mysqli_connect('localhost','tdoylex1_dork','dorkk','tdoylex1_dork');
And then include it in your query:
$query1 = mysqli_query($aVar, "SELECT name1 FROM users
ORDER BY RAND()
LIMIT 1");
$aName1 = mysqli_fetch_assoc($query1);
$name1 = $aName1['name1'];
Also don't forget to enclose your connections variables as strings as I have above. This is what's causing the error but you're using the function wrong, mysqli_query returns a query object but to get the data out of this you need to use something like mysqli_fetch_assoc http://php.net/manual/en/mysqli-result.fetch-assoc.php to actually get the data out into a variable as I have above.
public class GoogleDirection {
public final static String MODE_DRIVING = "driving";
public final static String MODE_WALKING = "walking";
public final static String MODE_BICYCLING = "bicycling";
public final static String STATUS_OK = "OK";
public final static String STATUS_NOT_FOUND = "NOT_FOUND";
public final static String STATUS_ZERO_RESULTS = "ZERO_RESULTS";
public final static String STATUS_MAX_WAYPOINTS_EXCEEDED = "MAX_WAYPOINTS_EXCEEDED";
public final static String STATUS_INVALID_REQUEST = "INVALID_REQUEST";
public final static String STATUS_OVER_QUERY_LIMIT = "OVER_QUERY_LIMIT";
public final static String STATUS_REQUEST_DENIED = "REQUEST_DENIED";
public final static String STATUS_UNKNOWN_ERROR = "UNKNOWN_ERROR";
public final static int SPEED_VERY_FAST = 1;
public final static int SPEED_FAST = 2;
public final static int SPEED_NORMAL = 3;
public final static int SPEED_SLOW = 4;
public final static int SPEED_VERY_SLOW = 5;
private OnDirectionResponseListener mDirectionListener = null;
private OnAnimateListener mAnimateListener = null;
private boolean isLogging = false;
private LatLng animateMarkerPosition = null;
private LatLng beginPosition = null;
private LatLng endPosition = null;
private ArrayList<LatLng> animatePositionList = null;
private Marker animateMarker = null;
private Polyline animateLine = null;
private GoogleMap gm = null;
private int step = -1;
private int animateSpeed = -1;
private int zoom = -1;
private double animateDistance = -1;
private double animateCamera = -1;
private double totalAnimateDistance = 0;
private boolean cameraLock = false;
private boolean drawMarker = false;
private boolean drawLine = false;
private boolean flatMarker = false;
private boolean isCameraTilt = false;
private boolean isCameraZoom = false;
private boolean isAnimated = false;
private Context mContext = null;
public GoogleDirection(Context context) {
mContext = context;
}
public String request(LatLng start, LatLng end, String mode) {
final String url = "http://maps.googleapis.com/maps/api/directions/xml?"
+ "origin=" + start.latitude + "," + start.longitude
+ "&destination=" + end.latitude + "," + end.longitude
+ "&sensor=false&units=metric&mode=" + mode;
if(isLogging)
Log.i("GoogleDirection", "URL : " + url);
new RequestTask().execute(new String[]{ url });
return url;
}
private class RequestTask extends AsyncTask<String, Void, Document> {
protected Document doInBackground(String... url) {
try {
HttpClient httpClient = new DefaultHttpClient();
HttpContext localContext = new BasicHttpContext();
HttpPost httpPost = new HttpPost(url[0]);
HttpResponse response = httpClient.execute(httpPost, localContext);
InputStream in = response.getEntity().getContent();
DocumentBuilder builder = DocumentBuilderFactory.newInstance().newDocumentBuilder();
return builder.parse(in);
} catch (IOException e) {
e.printStackTrace();
} catch (ParserConfigurationException e) {
e.printStackTrace();
} catch (SAXException e) {
e.printStackTrace();
}
return null;
}
protected void onPostExecute(Document doc) {
super.onPostExecute(doc);
if(mDirectionListener != null)
mDirectionListener.onResponse(getStatus(doc), doc, GoogleDirection.this);
}
private String getStatus(Document doc) {
NodeList nl1 = doc.getElementsByTagName("status");
Node node1 = nl1.item(0);
if(isLogging)
Log.i("GoogleDirection", "Status : " + node1.getTextContent());
return node1.getTextContent();
}
}
public void setLogging(boolean state) {
isLogging = state;
}
public String getStatus(Document doc) {
NodeList nl1 = doc.getElementsByTagName("status");
Node node1 = nl1.item(0);
if(isLogging)
Log.i("GoogleDirection", "Status : " + node1.getTextContent());
return node1.getTextContent();
}
public String[] getDurationText(Document doc) {
NodeList nl1 = doc.getElementsByTagName("duration");
String[] arr_str = new String[nl1.getLength() - 1];
for(int i = 0 ; i < nl1.getLength() - 1 ; i++) {
Node node1 = nl1.item(i);
NodeList nl2 = node1.getChildNodes();
Node node2 = nl2.item(getNodeIndex(nl2, "text"));
arr_str[i] = node2.getTextContent();
if(isLogging)
Log.i("GoogleDirection", "DurationText : " + node2.getTextContent());
}
return arr_str;
}
public int[] getDurationValue(Document doc) {
NodeList nl1 = doc.getElementsByTagName("duration");
int[] arr_int = new int[nl1.getLength() - 1];
for(int i = 0 ; i < nl1.getLength() - 1 ; i++) {
Node node1 = nl1.item(i);
NodeList nl2 = node1.getChildNodes();
Node node2 = nl2.item(getNodeIndex(nl2, "value"));
arr_int[i] = Integer.parseInt(node2.getTextContent());
if(isLogging)
Log.i("GoogleDirection", "Duration : " + node2.getTextContent());
}
return arr_int;
}
public String getTotalDurationText(Document doc) {
NodeList nl1 = doc.getElementsByTagName("duration");
Node node1 = nl1.item(nl1.getLength() - 1);
NodeList nl2 = node1.getChildNodes();
Node node2 = nl2.item(getNodeIndex(nl2, "text"));
if(isLogging)
Log.i("GoogleDirection", "TotalDuration : " + node2.getTextContent());
return node2.getTextContent();
}
public int getTotalDurationValue(Document doc) {
NodeList nl1 = doc.getElementsByTagName("duration");
Node node1 = nl1.item(nl1.getLength() - 1);
NodeList nl2 = node1.getChildNodes();
Node node2 = nl2.item(getNodeIndex(nl2, "value"));
if(isLogging)
Log.i("GoogleDirection", "TotalDuration : " + node2.getTextContent());
return Integer.parseInt(node2.getTextContent());
}
public String[] getDistanceText(Document doc) {
NodeList nl1 = doc.getElementsByTagName("distance");
String[] arr_str = new String[nl1.getLength() - 1];
for(int i = 0 ; i < nl1.getLength() - 1 ; i++) {
Node node1 = nl1.item(i);
NodeList nl2 = node1.getChildNodes();
Node node2 = nl2.item(getNodeIndex(nl2, "text"));
arr_str[i] = node2.getTextContent();
if(isLogging)
Log.i("GoogleDirection", "DurationText : " + node2.getTextContent());
}
return arr_str;
}
public int[] getDistanceValue(Document doc) {
NodeList nl1 = doc.getElementsByTagName("distance");
int[] arr_int = new int[nl1.getLength() - 1];
for(int i = 0 ; i < nl1.getLength() - 1 ; i++) {
Node node1 = nl1.item(i);
NodeList nl2 = node1.getChildNodes();
Node node2 = nl2.item(getNodeIndex(nl2, "value"));
arr_int[i] = Integer.parseInt(node2.getTextContent());
if(isLogging)
Log.i("GoogleDirection", "Duration : " + node2.getTextContent());
}
return arr_int;
}
public String getTotalDistanceText(Document doc) {
NodeList nl1 = doc.getElementsByTagName("distance");
Node node1 = nl1.item(nl1.getLength() - 1);
NodeList nl2 = node1.getChildNodes();
Node node2 = nl2.item(getNodeIndex(nl2, "text"));
if(isLogging)
Log.i("GoogleDirection", "TotalDuration : " + node2.getTextContent());
return node2.getTextContent();
}
public int getTotalDistanceValue(Document doc) {
NodeList nl1 = doc.getElementsByTagName("distance");
Node node1 = nl1.item(nl1.getLength() - 1);
NodeList nl2 = node1.getChildNodes();
Node node2 = nl2.item(getNodeIndex(nl2, "value"));
if(isLogging)
Log.i("GoogleDirection", "TotalDuration : " + node2.getTextContent());
return Integer.parseInt(node2.getTextContent());
}
public String getStartAddress(Document doc) {
NodeList nl1 = doc.getElementsByTagName("start_address");
Node node1 = nl1.item(0);
if(isLogging)
Log.i("GoogleDirection", "StartAddress : " + node1.getTextContent());
return node1.getTextContent();
}
public String getEndAddress(Document doc) {
NodeList nl1 = doc.getElementsByTagName("end_address");
Node node1 = nl1.item(0);
if(isLogging)
Log.i("GoogleDirection", "StartAddress : " + node1.getTextContent());
return node1.getTextContent();
}
public String getCopyRights(Document doc) {
NodeList nl1 = doc.getElementsByTagName("copyrights");
Node node1 = nl1.item(0);
if(isLogging)
Log.i("GoogleDirection", "CopyRights : " + node1.getTextContent());
return node1.getTextContent();
}
public ArrayList<LatLng> getDirection(Document doc) {
NodeList nl1, nl2, nl3;
ArrayList<LatLng> listGeopoints = new ArrayList<LatLng>();
nl1 = doc.getElementsByTagName("step");
if (nl1.getLength() > 0) {
for (int i = 0; i < nl1.getLength(); i++) {
Node node1 = nl1.item(i);
nl2 = node1.getChildNodes();
Node locationNode = nl2.item(getNodeIndex(nl2, "start_location"));
nl3 = locationNode.getChildNodes();
Node latNode = nl3.item(getNodeIndex(nl3, "lat"));
double lat = Double.parseDouble(latNode.getTextContent());
Node lngNode = nl3.item(getNodeIndex(nl3, "lng"));
double lng = Double.parseDouble(lngNode.getTextContent());
listGeopoints.add(new LatLng(lat, lng));
locationNode = nl2.item(getNodeIndex(nl2, "polyline"));
nl3 = locationNode.getChildNodes();
latNode = nl3.item(getNodeIndex(nl3, "points"));
ArrayList<LatLng> arr = decodePoly(latNode.getTextContent());
for(int j = 0 ; j < arr.size() ; j++) {
listGeopoints.add(new LatLng(arr.get(j).latitude
, arr.get(j).longitude));
}
locationNode = nl2.item(getNodeIndex(nl2, "end_location"));
nl3 = locationNode.getChildNodes();
latNode = nl3.item(getNodeIndex(nl3, "lat"));
lat = Double.parseDouble(latNode.getTextContent());
lngNode = nl3.item(getNodeIndex(nl3, "lng"));
lng = Double.parseDouble(lngNode.getTextContent());
listGeopoints.add(new LatLng(lat, lng));
}
}
return listGeopoints;
}
public ArrayList<LatLng> getSection(Document doc) {
NodeList nl1, nl2, nl3;
ArrayList<LatLng> listGeopoints = new ArrayList<LatLng>();
nl1 = doc.getElementsByTagName("step");
if (nl1.getLength() > 0) {
for (int i = 0; i < nl1.getLength(); i++) {
Node node1 = nl1.item(i);
nl2 = node1.getChildNodes();
Node locationNode = nl2.item(getNodeIndex(nl2, "end_location"));
nl3 = locationNode.getChildNodes();
Node latNode = nl3.item(getNodeIndex(nl3, "lat"));
double lat = Double.parseDouble(latNode.getTextContent());
Node lngNode = nl3.item(getNodeIndex(nl3, "lng"));
double lng = Double.parseDouble(lngNode.getTextContent());
listGeopoints.add(new LatLng(lat, lng));
}
}
return listGeopoints;
}
public PolylineOptions getPolyline(Document doc, int width, int color) {
ArrayList<LatLng> arr_pos = getDirection(doc);
PolylineOptions rectLine = new PolylineOptions().width(dpToPx(width)).color(color);
for(int i = 0 ; i < arr_pos.size() ; i++)
rectLine.add(arr_pos.get(i));
return rectLine;
}
private int getNodeIndex(NodeList nl, String nodename) {
for(int i = 0 ; i < nl.getLength() ; i++) {
if(nl.item(i).getNodeName().equals(nodename))
return i;
}
return -1;
}
private ArrayList<LatLng> decodePoly(String encoded) {
ArrayList<LatLng> poly = new ArrayList<LatLng>();
int index = 0, len = encoded.length();
int lat = 0, lng = 0;
while (index < len) {
int b, shift = 0, result = 0;
do {
b = encoded.charAt(index++) - 63;
result |= (b & 0x1f) << shift;
shift += 5;
} while (b >= 0x20);
int dlat = ((result & 1) != 0 ? ~(result >> 1) : (result >> 1));
lat += dlat;
shift = 0;
result = 0;
do {
b = encoded.charAt(index++) - 63;
result |= (b & 0x1f) << shift;
shift += 5;
} while (b >= 0x20);
int dlng = ((result & 1) != 0 ? ~(result >> 1) : (result >> 1));
lng += dlng;
LatLng position = new LatLng((double)lat / 1E5, (double)lng / 1E5);
poly.add(position);
}
return poly;
}
private int dpToPx(int dp) {
DisplayMetrics displayMetrics = mContext.getResources().getDisplayMetrics();
int px = Math.round(dp * (displayMetrics.xdpi / DisplayMetrics.DENSITY_DEFAULT));
return px;
}
public void setOnDirectionResponseListener(OnDirectionResponseListener listener) {
mDirectionListener = listener;
}
public void setOnAnimateListener(OnAnimateListener listener) {
mAnimateListener = listener;
}
public interface OnDirectionResponseListener {
public void onResponse(String status, Document doc, GoogleDirection gd);
}
public interface OnAnimateListener {
public void onFinish();
public void onStart();
public void onProgress(int progress, int total);
}
public void animateDirection(GoogleMap gm, ArrayList<LatLng> direction, int speed
, boolean cameraLock, boolean isCameraTilt, boolean isCameraZoom
, boolean drawMarker, MarkerOptions mo, boolean flatMarker
, boolean drawLine, PolylineOptions po) {
if(direction.size() > 1) {
isAnimated = true;
animatePositionList = direction;
animateSpeed = speed;
this.drawMarker = drawMarker;
this.drawLine = drawLine;
this.flatMarker = flatMarker;
this.isCameraTilt = isCameraTilt;
this.isCameraZoom = isCameraZoom;
step = 0;
this.cameraLock = cameraLock;
this.gm = gm;
setCameraUpdateSpeed(speed);
beginPosition = animatePositionList.get(step);
endPosition = animatePositionList.get(step + 1);
animateMarkerPosition = beginPosition;
if(mAnimateListener != null)
mAnimateListener.onProgress(step, animatePositionList.size());
if(cameraLock) {
float bearing = getBearing(beginPosition, endPosition);
CameraPosition.Builder cameraBuilder = new CameraPosition.Builder()
.target(animateMarkerPosition).bearing(bearing);
if(isCameraTilt)
cameraBuilder.tilt(90);
else
cameraBuilder.tilt(gm.getCameraPosition().tilt);
if(isCameraZoom)
cameraBuilder.zoom(zoom);
else
cameraBuilder.zoom(gm.getCameraPosition().zoom);
CameraPosition cameraPosition = cameraBuilder.build();
gm.animateCamera(CameraUpdateFactory.newCameraPosition(cameraPosition));
}
if(drawMarker) {
if(mo != null)
animateMarker = gm.addMarker(mo.position(beginPosition));
else
animateMarker = gm.addMarker(new MarkerOptions().position(beginPosition));
if(flatMarker) {
animateMarker.setFlat(true);
float rotation = getBearing(animateMarkerPosition, endPosition) + 180;
animateMarker.setRotation(rotation);
}
}
if(drawLine) {
if(po != null)
animateLine = gm.addPolyline(po.add(beginPosition)
.add(beginPosition).add(endPosition)
.width(dpToPx((int)po.getWidth())));
else
animateLine = gm.addPolyline(new PolylineOptions()
.width(dpToPx(5)));
}
new Handler().postDelayed(r, speed);
if(mAnimateListener != null)
mAnimateListener.onStart();
}
}
public void cancelAnimated() {
isAnimated = false;
}
public boolean isAnimated() {
return isAnimated;
}
private Runnable r = new Runnable() {
public void run() {
animateMarkerPosition = getNewPosition(animateMarkerPosition, endPosition);
if(drawMarker)
animateMarker.setPosition(animateMarkerPosition);
if(drawLine) {
List<LatLng> points = animateLine.getPoints();
points.add(animateMarkerPosition);
animateLine.setPoints(points);
}
if((animateMarkerPosition.latitude == endPosition.latitude
&& animateMarkerPosition.longitude == endPosition.longitude)) {
if(step == animatePositionList.size() - 2) {
isAnimated = false;
totalAnimateDistance = 0;
if(mAnimateListener != null)
mAnimateListener.onFinish();
} else {
step++;
beginPosition = animatePositionList.get(step);
endPosition = animatePositionList.get(step + 1);
animateMarkerPosition = beginPosition;
if(flatMarker && step + 3 < animatePositionList.size() - 1) {
float rotation = getBearing(animateMarkerPosition, animatePositionList.get(step + 3)) + 180;
animateMarker.setRotation(rotation);
}
if(mAnimateListener != null)
mAnimateListener.onProgress(step, animatePositionList.size());
}
}
if(cameraLock && (totalAnimateDistance > animateCamera || !isAnimated)) {
totalAnimateDistance = 0;
float bearing = getBearing(beginPosition, endPosition);
CameraPosition.Builder cameraBuilder = new CameraPosition.Builder()
.target(animateMarkerPosition).bearing(bearing);
if(isCameraTilt)
cameraBuilder.tilt(90);
else
cameraBuilder.tilt(gm.getCameraPosition().tilt);
if(isCameraZoom)
cameraBuilder.zoom(zoom);
else
cameraBuilder.zoom(gm.getCameraPosition().zoom);
CameraPosition cameraPosition = cameraBuilder.build();
gm.animateCamera(CameraUpdateFactory.newCameraPosition(cameraPosition));
}
if(isAnimated) {
new Handler().postDelayed(r, animateSpeed);
}
}
};
public Marker getAnimateMarker() {
return animateMarker;
}
public Polyline getAnimatePolyline() {
return animateLine;
}
private LatLng getNewPosition(LatLng begin, LatLng end) {
double lat = Math.abs(begin.latitude - end.latitude);
double lng = Math.abs(begin.longitude - end.longitude);
double dis = Math.sqrt(Math.pow(lat, 2) + Math.pow(lng, 2));
if(dis >= animateDistance) {
double angle = -1;
if(begin.latitude <= end.latitude && begin.longitude <= end.longitude)
angle = Math.toDegrees(Math.atan(lng / lat));
else if(begin.latitude > end.latitude && begin.longitude <= end.longitude)
angle = (90 - Math.toDegrees(Math.atan(lng / lat))) + 90;
else if(begin.latitude > end.latitude && begin.longitude > end.longitude)
angle = Math.toDegrees(Math.atan(lng / lat)) + 180;
else if(begin.latitude <= end.latitude && begin.longitude > end.longitude)
angle = (90 - Math.toDegrees(Math.atan(lng / lat))) + 270;
double x = Math.cos(Math.toRadians(angle)) * animateDistance;
double y = Math.sin(Math.toRadians(angle)) * animateDistance;
totalAnimateDistance += animateDistance;
double finalLat = begin.latitude + x;
double finalLng = begin.longitude + y;
return new LatLng(finalLat, finalLng);
} else {
return end;
}
}
private float getBearing(LatLng begin, LatLng end) {
double lat = Math.abs(begin.latitude - end.latitude);
double lng = Math.abs(begin.longitude - end.longitude);
if(begin.latitude < end.latitude && begin.longitude < end.longitude)
return (float)(Math.toDegrees(Math.atan(lng / lat)));
else if(begin.latitude >= end.latitude && begin.longitude < end.longitude)
return (float)((90 - Math.toDegrees(Math.atan(lng / lat))) + 90);
else if(begin.latitude >= end.latitude && begin.longitude >= end.longitude)
return (float)(Math.toDegrees(Math.atan(lng / lat)) + 180);
else if(begin.latitude < end.latitude && begin.longitude >= end.longitude)
return (float)((90 - Math.toDegrees(Math.atan(lng / lat))) + 270);
return -1;
}
public void setCameraUpdateSpeed(int speed) {
if(speed == SPEED_VERY_SLOW) {
animateDistance = 0.000005;
animateSpeed = 20;
animateCamera = 0.0004;
zoom = 19;
} else if(speed == SPEED_SLOW) {
animateDistance = 0.00001;
animateSpeed = 20;
animateCamera = 0.0008;
zoom = 18;
} else if(speed == SPEED_NORMAL) {
animateDistance = 0.00005;
animateSpeed = 20;
animateCamera = 0.002;
zoom = 16;
} else if(speed == SPEED_FAST) {
animateDistance = 0.0001;
animateSpeed = 20;
animateCamera = 0.004;
zoom = 15;
} else if(speed == SPEED_VERY_FAST) {
animateDistance = 0.0005;
animateSpeed = 20;
animateCamera = 0.004;
zoom = 13;
} else {
animateDistance = 0.00005;
animateSpeed = 20;
animateCamera = 0.002;
zoom = 16;
}
}
}
//Main Activity
public class MapActivity extends ActionBarActivity {
GoogleMap map = null;
GoogleDirection gd;
LatLng start,end;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_map);
start = new LatLng(13.744246499553903, 100.53428772836924);
end = new LatLng(13.751279688694071, 100.54316081106663);
map = ((MapFragment) getFragmentManager().findFragmentById(R.id.map)).getMap();
map.animateCamera(CameraUpdateFactory.newLatLngZoom(start, 15));
gd = new GoogleDirection(this);
gd.setOnDirectionResponseListener(new GoogleDirection.OnDirectionResponseListener() {
public void onResponse(String status, Document doc, GoogleDirection gd) {
Toast.makeText(getApplicationContext(), status, Toast.LENGTH_SHORT).show();
gd.animateDirection(map, gd.getDirection(doc), GoogleDirection.SPEED_FAST
, true, true, true, false, null, false, true, new PolylineOptions().width(8).color(Color.RED));
map.addMarker(new MarkerOptions().position(start)
.icon(BitmapDescriptorFactory.fromResource(R.drawable.markera)));
map.addMarker(new MarkerOptions().position(end)
.icon(BitmapDescriptorFactory.fromResource(R.drawable.markerb)));
String TotalDistance = gd.getTotalDistanceText(doc);
String TotalDuration = gd.getTotalDurationText(doc);
}
});
gd.request(start, end, GoogleDirection.MODE_DRIVING);
}
}
To add to the accepted answer:
Bear in mind that set -e
sometimes is not enough, specially if you have pipes.
For example, suppose you have this script
#!/bin/bash
set -e
./configure > configure.log
make
... which works as expected: an error in configure
aborts the execution.
Tomorrow you make a seemingly trivial change:
#!/bin/bash
set -e
./configure | tee configure.log
make
... and now it does not work. This is explained here, and a workaround (Bash only) is provided:
#!/bin/bash set -e set -o pipefail ./configure | tee configure.log make
I wrote a simple jQuery extension to disable selection some time back: Disabling Selection in jQuery. You can invoke it through $('.button').disableSelection();
Alternately, using CSS (cross-browser):
.button {
user-select: none;
-moz-user-select: none;
-khtml-user-select: none;
-webkit-user-select: none;
-o-user-select: none;
}
where c.FullName.Contains("string")
html2canvas(element[0], {
onrendered: function (canvas) {
pages = Math.ceil(element[0].clientHeight / 1450);
for (i = 0; i <= pages; i += 1) {
if (i > 0) {
pdf.addPage();
}
srcImg = canvas;
sX = 0;
sY = 1450 * i;
sWidth = 1100;
sHeight = 1450;
dX = 0;
dY = 0;
dWidth = 1100;
dHeight = 1450;
window.onePageCanvas = document.createElement("canvas");
onePageCanvas.setAttribute('width', 1100);
onePageCanvas.setAttribute('height', 1450);
ctx = onePageCanvas.getContext('2d');
ctx.drawImage(srcImg, sX, sY, sWidth, sHeight, dX, dY, dWidth, dHeight);
canvasDataURL = onePageCanvas.toDataURL("image/png");
width = onePageCanvas.width;
height = onePageCanvas.clientHeight;
pdf.setPage(i + 1);
pdf.addImage(canvasDataURL, 'PNG', 35, 30, (width * 0.5), (height * 0.5));
}
pdf.save('testfilename.pdf');
}
});
A solution without using "eval":
var setInnerHtml = function(elm, html) {
elm.innerHTML = html;
var scripts = elm.getElementsByTagName("script");
// If we don't clone the results then "scripts"
// will actually update live as we insert the new
// tags, and we'll get caught in an endless loop
var scriptsClone = [];
for (var i = 0; i < scripts.length; i++) {
scriptsClone.push(scripts[i]);
}
for (var i = 0; i < scriptsClone.length; i++) {
var currentScript = scriptsClone[i];
var s = document.createElement("script");
// Copy all the attributes from the original script
for (var j = 0; j < currentScript.attributes.length; j++) {
var a = currentScript.attributes[j];
s.setAttribute(a.name, a.value);
}
s.appendChild(document.createTextNode(currentScript.innerHTML));
currentScript.parentNode.replaceChild(s, currentScript);
}
}
This essentially clones the script tag and then replaces the blocked script tag with the newly generated one, thus allowing execution.
@klode's answer is right.
However, you are supposed to set another response header to make your header accessible to others.
Example:
First, you add 'page-size' in response header
response.set('page-size', 20);
Then, all you need to do is expose your header
response.set('Access-Control-Expose-Headers', 'page-size')
Updated version of @Alaaedeen's answer. You can specify any part of the version of any package you want to install. This may cause other package versions to change. For example, if you don't care about which specific version of PyQt4 you want, do:
conda install pyqt=4
This would install the latest minor version and release of PyQt 4. You can specify any portion of the version that you want, not just the major number. So, for example
conda install pyqt=4.11
would install the latest (or last) release of version 4.11.
Keep in mind that installing a different version of a package may cause the other packages that depend on it to be rolled forward or back to where they support the version you want.
I think SELECT CAST( CAST([field] AS VARBINARY(120)) AS varchar(120)) for your update
Below command will display the modfied files alone in windows.
svn status | findstr "^M"
Your script is blocked from executing due to the execution policy.
You need to run PowerShell as administrator and set it on the client PC to Unrestricted. You can do that by calling Invoke with:
Set-ExecutionPolicy Unrestricted
In your example, you can just go:
chomp(@lines);
Or:
$_=join("", @lines);
s/[\r\n]+//g;
Or:
@lines = split /[\r\n]+/, join("", @lines);
Using these directly on a file:
perl -e '$_=join("",<>); s/[\r\n]+//g; print' <a.txt |less
perl -e 'chomp(@a=<>);print @a' <a.txt |less
In Chrome 72 (2019-02-09) I've discovered that the :in-range
attribute is applied to empty date
inputs, for some reason!
So this works for me: (I added the :not([max]):not([min])
selectors to avoid breaking date inputs that do have a range applied to them:
input[type=date]:not([max]):not([min]):in-range {
color: blue;
}
Screenshot:
Here's a runnable sample:
window.addEventListener( 'DOMContentLoaded', onLoad );_x000D_
_x000D_
function onLoad() {_x000D_
_x000D_
document.getElementById( 'date4' ).value = "2019-02-09";_x000D_
_x000D_
document.getElementById( 'date5' ).value = null;_x000D_
_x000D_
}
_x000D_
label {_x000D_
display: block;_x000D_
margin: 1em;_x000D_
}_x000D_
_x000D_
input[type=date]:not([max]):not([min]):in-range {_x000D_
color: blue;_x000D_
}
_x000D_
<label>_x000D_
<input type="date" id="date1" />_x000D_
Without HTML value=""_x000D_
</label>_x000D_
_x000D_
<label>_x000D_
<input type="date" id="date2" value="2019-02-09" />_x000D_
With HTML value=""_x000D_
</label>_x000D_
_x000D_
<label>_x000D_
<input type="date" id="date3" />_x000D_
Without HTML value="" but modified by user_x000D_
</label>_x000D_
_x000D_
<label>_x000D_
<input type="date" id="date4" />_x000D_
Without HTML value="" but set by script_x000D_
</label>_x000D_
_x000D_
<label>_x000D_
<input type="date" id="date5" value="2019-02-09" />_x000D_
With HTML value="" but cleared by script_x000D_
</label>
_x000D_
- Where does
user.id
go afterpassport.serializeUser
has been called?
The user id (you provide as the second argument of the done
function) is saved in the session and is later used to retrieve the whole object via the deserializeUser
function.
serializeUser
determines which data of the user object should be stored in the session. The result of the serializeUser method is attached to the session as req.session.passport.user = {}
. Here for instance, it would be (as we provide the user id as the key) req.session.passport.user = {id: 'xyz'}
- We are calling
passport.deserializeUser
right after it where does it fit in the workflow?
The first argument of deserializeUser
corresponds to the key of the user object that was given to the done
function (see 1.). So your whole object is retrieved with help of that key. That key here is the user id (key can be any key of the user object i.e. name,email etc).
In deserializeUser
that key is matched with the in memory array / database or any data resource.
The fetched object is attached to the request object as req.user
Visual Flow
passport.serializeUser(function(user, done) {
done(null, user.id);
}); ¦
¦
¦
+--------------------? saved to session
¦ req.session.passport.user = {id: '..'}
¦
?
passport.deserializeUser(function(id, done) {
+---------------+
¦
?
User.findById(id, function(err, user) {
done(err, user);
}); +--------------? user object attaches to the request as req.user
});
There is also a combination, you can use a return value with a recordset:
--Stored Procedure--
CREATE PROCEDURE [TestProc]
AS
BEGIN
DECLARE @Temp TABLE
(
[Name] VARCHAR(50)
)
INSERT INTO @Temp VALUES ('Mark')
INSERT INTO @Temp VALUES ('John')
INSERT INTO @Temp VALUES ('Jane')
INSERT INTO @Temp VALUES ('Mary')
-- Get recordset
SELECT * FROM @Temp
DECLARE @ReturnValue INT
SELECT @ReturnValue = COUNT([Name]) FROM @Temp
-- Return count
RETURN @ReturnValue
END
--Calling Code--
DECLARE @SelectedValue int
EXEC @SelectedValue = [TestProc]
SELECT @SelectedValue
--Results--
using jQuery input mask plugin (6 whole and 2 decimal places):
HTML:
<input class="mask" type="text" />
jQuery:
$(".mask").inputmask('Regex', {regex: "^[0-9]{1,6}(\\.\\d{1,2})?$"});
I hope this helps someone
The <context:annotation-config>
tag tells Spring to scan the codebase for automatically resolving dependency requirements of the classes containing @Autowired annotation.
Spring 2.5 also adds support for JSR-250 annotations such as @Resource, @PostConstruct, and @PreDestroy.Use of these annotations also requires that certain BeanPostProcessors be registered within the Spring container. As always, these can be registered as individual bean definitions, but they can also be implicitly registered by including <context:annotation-config>
tag in spring configuration.
Taken from Spring documentation of Annotation Based Configuration
Spring provides the capability of automatically detecting 'stereotyped' classes and registering corresponding BeanDefinitions with the ApplicationContext.
According to javadoc of org.springframework.stereotype:
Stereotypes are Annotations denoting the roles of types or methods in the overall architecture (at a conceptual, rather than implementation, level). Example: @Controller @Service @Repository etc. These are intended for use by tools and aspects (making an ideal target for pointcuts).
To autodetect such 'stereotype' classes, <context:component-scan>
tag is required.
The <context:component-scan>
tag also tells Spring to scan the code for injectable beans under the package (and all its subpackages) specified.
I think this example will help you in understanding this more simply.
Path differences in Windows
Windows absolute path C:\Windows\calc.exe
Windows non absolute path (relative path) calc.exe
In the above example, the absolute path contains the full path to the file and not just the file as seen in the non absolute path. In this example, if you were in a directory that did not contain "calc.exe" you would get an error message. However, when using an absolute path you can be in any directory and the computer would know where to open the "calc.exe" file.
Path differences in Linux
Linux absolute path /home/users/c/computerhope/public_html/cgi-bin
Linux non absolute path (relative path) /public_html/cgi-bin
In these example, the absolute path contains the full path to the cgi-bin directory on that computer. How to find the absolute path of a file in Linux Since most users do not want to see the full path as their prompt, by default the prompt is relative to their personal directory as shown above. To find the full absolute path of the current directory use the pwd command.
It is a best practice to use relative file paths (if possible).
When using relative file paths, your web pages will not be bound to your current base URL. All links will work on your own computer (localhost) as well as on your current public domain and your future public domains.
"Best" helpdesk system is very subjective, of course, but I recommend Request Tracker (aka RT).
It has a default workflow built in, but is easily configured for alternate workflows using the "Scrips" and templates. Very extensible if you want.
Now there is special method - get_fields()
>>> from django.contrib.auth.models import User
>>> User._meta.get_fields()
It accepts two parameters that can be used to control which fields are returned:
include_parents
True by default. Recursively includes fields defined on parent classes. If set to False, get_fields() will only search for fields declared directly on the current model. Fields from models that directly inherit from abstract models or proxy classes are considered to be local, not on the parent.
include_hidden
False by default. If set to True, get_fields() will include fields that are used to back other field’s functionality. This will also include any fields that have a related_name (such as ManyToManyField, or ForeignKey) that start with a “+”
Building off of Mamboking's answer:
ContractsDao mock_contractsDao = mock(ContractsDao.class);
when(mock_contractsDao.save(anyString())).thenReturn("Some result");
m_orderSvc.m_contractsDao = mock_contractsDao;
m_prog = new ProcessOrdersWorker(m_orderSvc, m_opportunitySvc, m_myprojectOrgSvc);
m_prog.work();
Addressing your request to verify whether the argument contains a certain value, I could assume you mean that the argument is a String and you want to test whether the String argument contains a substring. For this you could do:
ArgumentCaptor<String> savedCaptor = ArgumentCaptor.forClass(String.class);
verify(mock_contractsDao).save(savedCaptor.capture());
assertTrue(savedCaptor.getValue().contains("substring I want to find");
If that assumption was wrong, and the argument to save()
is a collection of some kind, it would be only slightly different:
ArgumentCaptor<Collection<MyType>> savedCaptor = ArgumentCaptor.forClass(Collection.class);
verify(mock_contractsDao).save(savedCaptor.capture());
assertTrue(savedCaptor.getValue().contains(someMyTypeElementToFindInCollection);
You might also check into ArgumentMatchers, if you know how to use Hamcrest matchers.
var o = { cat : "meow", dog : "woof"};
var x = Object.keys(o);
for (i=0; i<x.length; i++) {
console.log(o[x[i]]);
}
IAB
You can also do like this
select *
from table
where columnName like '%' + case when @varColumn is null then '' else @varColumn end + ' %'
The icon displayed by the Shell (Explorer) for batch files is determined by the registry key
HKCR\batfile\DefaultIcon
which, on my computer is
%SystemRoot%\System32\imageres.dll,-68
You can set this to any icon you like.
This will however change the icons of all batch files (unless they have the extension .cmd
).
If the table has date field, this(User::orderBy('created_at', 'desc')->first();
) is the best solution, I think.
But there is no date field, Model ::orderBy('id', 'desc')->first()->id;
is the best solution, I am sure.
using System.IO;
using System.Text;
using (StreamWriter sw = new StreamWriter(File.Open(myfilename, FileMode.Create), Encoding.WhateverYouWant))
{
sw.WriteLine("my text...");
}
An alternate way of getting your encoding:
using System.IO;
using System.Text;
using (var sw = new StreamWriter(File.Open(@"c:\myfile.txt", FileMode.CreateNew), Encoding.GetEncoding("iso-8859-1"))) {
sw.WriteLine("my text...");
}
Check out the docs for the StreamWriter constructor.
In comments debiasej wrote the mentioned below article explains more about design patterns (based on interfaces, classes):
http://loredanacirstea.github.io/es6-design-patterns/
Design patterns book in javascript may also be useful for you:
http://addyosmani.com/resources/essentialjsdesignpatterns/book/
Design pattern = classes + interface or multiple inheritance
An example of the factory pattern in ES6 JS (to run: node example.js):
"use strict";
// Types.js - Constructors used behind the scenes
// A constructor for defining new cars
class Car {
constructor(options){
console.log("Creating Car...\n");
// some defaults
this.doors = options.doors || 4;
this.state = options.state || "brand new";
this.color = options.color || "silver";
}
}
// A constructor for defining new trucks
class Truck {
constructor(options){
console.log("Creating Truck...\n");
this.state = options.state || "used";
this.wheelSize = options.wheelSize || "large";
this.color = options.color || "blue";
}
}
// FactoryExample.js
// Define a skeleton vehicle factory
class VehicleFactory {}
// Define the prototypes and utilities for this factory
// Our default vehicleClass is Car
VehicleFactory.prototype.vehicleClass = Car;
// Our Factory method for creating new Vehicle instances
VehicleFactory.prototype.createVehicle = function ( options ) {
switch(options.vehicleType){
case "car":
this.vehicleClass = Car;
break;
case "truck":
this.vehicleClass = Truck;
break;
//defaults to VehicleFactory.prototype.vehicleClass (Car)
}
return new this.vehicleClass( options );
};
// Create an instance of our factory that makes cars
var carFactory = new VehicleFactory();
var car = carFactory.createVehicle( {
vehicleType: "car",
color: "yellow",
doors: 6 } );
// Test to confirm our car was created using the vehicleClass/prototype Car
// Outputs: true
console.log( car instanceof Car );
// Outputs: Car object of color "yellow", doors: 6 in a "brand new" state
console.log( car );
var movingTruck = carFactory.createVehicle( {
vehicleType: "truck",
state: "like new",
color: "red",
wheelSize: "small" } );
// Test to confirm our truck was created with the vehicleClass/prototype Truck
// Outputs: true
console.log( movingTruck instanceof Truck );
// Outputs: Truck object of color "red", a "like new" state
// and a "small" wheelSize
console.log( movingTruck );
Try the PowerShell PowerToy... It adds a context menu item for Open PowerShell Here.
Or you could create a shortcut that opens PowerShell with the Start In folder being your Projects folder.
Do
<script>//<![CDATA[
/* script */
//]]></script>
With approach explained by EdChum above, the values in the list are shown as rows. To show the values of lists as columns in DataFrame instead, simply use transpose() as following:
table = [[1 , 2], [3, 4]]
df = pd.DataFrame(table)
df = df.transpose()
df.columns = ['Heading1', 'Heading2']
The output then is:
Heading1 Heading2
0 1 3
1 2 4
This worked for me on Windows 8.1 and Windows 10.
git config --global mergetool.meld.path "/c/Program Files (x86)/meld/meld.exe"
Maybe these two examples illustrate you the difference between a deadlock and a livelock:
Java-Example for a deadlock:
import java.util.concurrent.locks.Lock;
import java.util.concurrent.locks.ReentrantLock;
public class DeadlockSample {
private static final Lock lock1 = new ReentrantLock(true);
private static final Lock lock2 = new ReentrantLock(true);
public static void main(String[] args) {
Thread threadA = new Thread(DeadlockSample::doA,"Thread A");
Thread threadB = new Thread(DeadlockSample::doB,"Thread B");
threadA.start();
threadB.start();
}
public static void doA() {
System.out.println(Thread.currentThread().getName() + " : waits for lock 1");
lock1.lock();
System.out.println(Thread.currentThread().getName() + " : holds lock 1");
try {
System.out.println(Thread.currentThread().getName() + " : waits for lock 2");
lock2.lock();
System.out.println(Thread.currentThread().getName() + " : holds lock 2");
try {
System.out.println(Thread.currentThread().getName() + " : critical section of doA()");
} finally {
lock2.unlock();
System.out.println(Thread.currentThread().getName() + " : does not hold lock 2 any longer");
}
} finally {
lock1.unlock();
System.out.println(Thread.currentThread().getName() + " : does not hold lock 1 any longer");
}
}
public static void doB() {
System.out.println(Thread.currentThread().getName() + " : waits for lock 2");
lock2.lock();
System.out.println(Thread.currentThread().getName() + " : holds lock 2");
try {
System.out.println(Thread.currentThread().getName() + " : waits for lock 1");
lock1.lock();
System.out.println(Thread.currentThread().getName() + " : holds lock 1");
try {
System.out.println(Thread.currentThread().getName() + " : critical section of doB()");
} finally {
lock1.unlock();
System.out.println(Thread.currentThread().getName() + " : does not hold lock 1 any longer");
}
} finally {
lock2.unlock();
System.out.println(Thread.currentThread().getName() + " : does not hold lock 2 any longer");
}
}
}
Sample output:
Thread A : waits for lock 1
Thread B : waits for lock 2
Thread A : holds lock 1
Thread B : holds lock 2
Thread B : waits for lock 1
Thread A : waits for lock 2
Java-Example for a livelock:
import java.util.concurrent.locks.Lock;
import java.util.concurrent.locks.ReentrantLock;
public class LivelockSample {
private static final Lock lock1 = new ReentrantLock(true);
private static final Lock lock2 = new ReentrantLock(true);
public static void main(String[] args) {
Thread threadA = new Thread(LivelockSample::doA, "Thread A");
Thread threadB = new Thread(LivelockSample::doB, "Thread B");
threadA.start();
threadB.start();
}
public static void doA() {
try {
while (!lock1.tryLock()) {
System.out.println(Thread.currentThread().getName() + " : waits for lock 1");
Thread.sleep(100);
}
System.out.println(Thread.currentThread().getName() + " : holds lock 1");
try {
while (!lock2.tryLock()) {
System.out.println(Thread.currentThread().getName() + " : waits for lock 2");
Thread.sleep(100);
}
System.out.println(Thread.currentThread().getName() + " : holds lock 2");
try {
System.out.println(Thread.currentThread().getName() + " : critical section of doA()");
} finally {
lock2.unlock();
System.out.println(Thread.currentThread().getName() + " : does not hold lock 2 any longer");
}
} finally {
lock1.unlock();
System.out.println(Thread.currentThread().getName() + " : does not hold lock 1 any longer");
}
} catch (InterruptedException e) {
// can be ignored here for this sample
}
}
public static void doB() {
try {
while (!lock2.tryLock()) {
System.out.println(Thread.currentThread().getName() + " : waits for lock 2");
Thread.sleep(100);
}
System.out.println(Thread.currentThread().getName() + " : holds lock 2");
try {
while (!lock1.tryLock()) {
System.out.println(Thread.currentThread().getName() + " : waits for lock 1");
Thread.sleep(100);
}
System.out.println(Thread.currentThread().getName() + " : holds lock 1");
try {
System.out.println(Thread.currentThread().getName() + " : critical section of doB()");
} finally {
lock1.unlock();
System.out.println(Thread.currentThread().getName() + " : does not hold lock 1 any longer");
}
} finally {
lock2.unlock();
System.out.println(Thread.currentThread().getName() + " : does not hold lock 2 any longer");
}
} catch (InterruptedException e) {
// can be ignored here for this sample
}
}
}
Sample output:
Thread B : holds lock 2
Thread A : holds lock 1
Thread A : waits for lock 2
Thread B : waits for lock 1
Thread B : waits for lock 1
Thread A : waits for lock 2
Thread A : waits for lock 2
Thread B : waits for lock 1
Thread B : waits for lock 1
Thread A : waits for lock 2
Thread A : waits for lock 2
Thread B : waits for lock 1
...
Both examples force the threads to aquire the locks in different orders. While the deadlock waits for the other lock, the livelock does not really wait - it desperately tries to acquire the lock without the chance of getting it. Every try consumes CPU cycles.
While it is true that you cannot change the type of the column after the DataTable
is filled, you can change it after you call FillSchema
, but before you call Fill
. For example, say the 3rd column is the one you want to convert from double
to Int32
, you could use:
adapter.FillSchema(table, SchemaType.Source);
table.Columns[2].DataType = typeof (Int32);
adapter.Fill(table);
Solution with LOCALE_ID is great if you want to set the language for your app once. But it doesn’t work, if you want to change the language during runtime. For this case you can implement custom date pipe.
import { DatePipe } from '@angular/common';
import { Pipe, PipeTransform } from '@angular/core';
import { TranslateService } from '@ngx-translate/core';
@Pipe({
name: 'localizedDate',
pure: false
})
export class LocalizedDatePipe implements PipeTransform {
constructor(private translateService: TranslateService) {
}
transform(value: any, pattern: string = 'mediumDate'): any {
const datePipe: DatePipe = new DatePipe(this.translateService.currentLang);
return datePipe.transform(value, pattern);
}
}
Now if you change the app display language using TranslateService (see ngx-translate)
this.translateService.use('en');
the formats within your app should automatically being updated.
Example of use:
<p>{{ 'note.created-at' | translate:{date: note.createdAt | localizedDate} }}</p>
<p>{{ 'note.updated-at' | translate:{date: note.updatedAt | localizedDate:'fullDate'} }}</p>
or check my simple "Notes" project here.
Many of the existing answers assume you want to set this for a particular project, but I needed to set it for Eclipse itself in order to support integrated authentication for the SQL Server JDBC driver.
To do this, I followed these instructions for launching Eclipse from the Java commandline instead of its normal launcher. Then I just modified that script to add my -Djava.library.path argument to the Java commandline.
There are two methods you can use. Both require creating a user and a database.
Using createuser and createdb,
$ sudo -u postgres createuser --superuser $USER
$ createdb mydatabase
$ psql -d mydatabase
Using the SQL administration commands, and connecting with a password over TCP
$ sudo -u postgres psql postgres
And, then in the psql shell
CREATE ROLE myuser LOGIN PASSWORD 'mypass';
CREATE DATABASE mydatabase WITH OWNER = myuser;
Then you can login,
$ psql -h localhost -d mydatabase -U myuser -p <port>
If you don't know the port, you can always get it by running the following, as the postgres
user,
SHOW port;
Or,
$ grep "port =" /etc/postgresql/*/main/postgresql.conf
postgres
userI suggest NOT modifying the postgres
user.
postgres
. You're supposed to have root to get to authenticate as postgres
.postgres
which is the PostgreSQL equivalent of SQL Server's SA
, you have to have write-access to the underlying data files. And, that means that you could normally wreck havoc anyway.It turns out that you can set window.undefined to whatever you want, and so get object.x !== undefined
when object.x is the real undefined. In my case I inadvertently set undefined to null.
The easiest way to see this happen is:
window.undefined = null;
alert(window.xyzw === undefined); // shows false
Of course, this is not likely to happen. In my case the bug was a little more subtle, and was equivalent to the following scenario.
var n = window.someName; // someName expected to be set but is actually undefined
window[n]=null; // I thought I was clearing the old value but was actually changing window.undefined to null
alert(window.xyzw === undefined); // shows false
You want border-spacing
:
<table style="border-spacing: 10px;">
Or in a CSS block somewhere:
table {
border-spacing: 10px;
}
See quirksmode on border-spacing
. Be aware that border-spacing
does not work on IE7 and below.
I have made comparison of the three algorithms in the accepted answer. I generated colors in cycle where only about every 400th color was used. Each color is represented by 2x2 pixels, colors are sorted from darkest to lightest (left to right, top to bottom).
1st picture - Luminance (relative)
0.2126 * R + 0.7152 * G + 0.0722 * B
2nd picture - http://www.w3.org/TR/AERT#color-contrast
0.299 * R + 0.587 * G + 0.114 * B
3rd picture - HSP Color Model
sqrt(0.299 * R^2 + 0.587 * G^2 + 0.114 * B^2)
4th picture - WCAG 2.0 SC 1.4.3 relative luminance and contrast ratio formula (see @Synchro's answer here)
Pattern can be sometimes spotted on 1st and 2nd picture depending on the number of colors in one row. I never spotted any pattern on picture from 3rd or 4th algorithm.
If i had to choose i would go with algorithm number 3 since its much easier to implement and its about 33% faster than the 4th.
Useful Kotlin Extension Function Example
fun String.toMD5(): String {
val bytes = MessageDigest.getInstance("MD5").digest(this.toByteArray())
return bytes.toHex()
}
fun ByteArray.toHex(): String {
return joinToString("") { "%02x".format(it) }
}
Reviving an old thread, but this pretty clean approach was not listed.
function mycommand() {
ssh [email protected] <<+
cd testdir;./test.sh "$1"
+
}
It's because you're calling doGet()
without actually implementing doGet()
. It's the default implementation of doGet() that throws the error saying the method is not supported.
Every managed exe has a an entry point which can be seen when if you load your code to ILDASM. The Entry Point is specified in the CLR headed and would look something like this.
Combining various answers :
In MySQL 5.5, DEFAULT CURRENT_TIMESTAMP
and ON UPDATE CURRENT_TIMESTAMP
cannot be added on DATETIME
but only on TIMESTAMP
.
Rules:
1) at most one TIMESTAMP
column per table could be automatically (or manually[My addition]) initialized or updated to the current date and time. (MySQL Docs).
So only one TIMESTAMP
can have CURRENT_TIMESTAMP
in DEFAULT
or ON UPDATE
clause
2) The first NOT NULL
TIMESTAMP
column without an explicit DEFAULT
value like created_date timestamp default '0000-00-00 00:00:00'
will be implicitly given a DEFAULT CURRENT_TIMESTAMP ON UPDATE CURRENT_TIMESTAMP
and hence subsequent TIMESTAMP
columns cannot be given CURRENT_TIMESTAMP
on DEFAULT
or ON UPDATE
clause
CREATE TABLE `address` (
`id` int(9) NOT NULL AUTO_INCREMENT,
`village` int(11) DEFAULT NULL,
`created_date` timestamp default '0000-00-00 00:00:00',
-- Since explicit DEFAULT value that is not CURRENT_TIMESTAMP is assigned for a NOT NULL column,
-- implicit DEFAULT CURRENT_TIMESTAMP is avoided.
-- So it allows us to set ON UPDATE CURRENT_TIMESTAMP on 'updated_date' column.
-- How does setting DEFAULT to '0000-00-00 00:00:00' instead of CURRENT_TIMESTAMP help?
-- It is just a temporary value.
-- On INSERT of explicit NULL into the column inserts current timestamp.
-- `created_date` timestamp not null default '0000-00-00 00:00:00', // same as above
-- `created_date` timestamp null default '0000-00-00 00:00:00',
-- inserting 'null' explicitly in INSERT statement inserts null (Ignoring the column inserts the default value)!
-- Remember we need current timestamp on insert of 'null'. So this won't work.
-- `created_date` timestamp null , // always inserts null. Equally useless as above.
-- `created_date` timestamp default 0, // alternative to '0000-00-00 00:00:00'
-- `created_date` timestamp,
-- first 'not null' timestamp column without 'default' value.
-- So implicitly adds DEFAULT CURRENT_TIMESTAMP and ON UPDATE CURRENT_TIMESTAMP.
-- Hence cannot add 'ON UPDATE CURRENT_TIMESTAMP' on 'updated_date' column.
`updated_date` timestamp null on update current_timestamp,
PRIMARY KEY (`id`)
) ENGINE=InnoDB AUTO_INCREMENT=132 DEFAULT CHARSET=utf8;
INSERT INTO address (village,created_date) VALUES (100,null);
mysql> select * from address;
+-----+---------+---------------------+--------------+
| id | village | created_date | updated_date |
+-----+---------+---------------------+--------------+
| 132 | 100 | 2017-02-18 04:04:00 | NULL |
+-----+---------+---------------------+--------------+
1 row in set (0.00 sec)
UPDATE address SET village=101 WHERE village=100;
mysql> select * from address;
+-----+---------+---------------------+---------------------+
| id | village | created_date | updated_date |
+-----+---------+---------------------+---------------------+
| 132 | 101 | 2017-02-18 04:04:00 | 2017-02-18 04:06:14 |
+-----+---------+---------------------+---------------------+
1 row in set (0.00 sec)
Other option (But updated_date
is the first column):
CREATE TABLE `address` (
`id` int(9) NOT NULL AUTO_INCREMENT,
`village` int(11) DEFAULT NULL,
`updated_date` timestamp null on update current_timestamp,
`created_date` timestamp not null ,
-- implicit default is '0000-00-00 00:00:00' from 2nd timestamp onwards
-- `created_date` timestamp not null default '0000-00-00 00:00:00'
-- `created_date` timestamp
-- `created_date` timestamp default '0000-00-00 00:00:00'
PRIMARY KEY (`id`)
) ENGINE=InnoDB AUTO_INCREMENT=132 DEFAULT CHARSET=utf8;
By using iter
builtin:
l = [1, 2, 3]
# i is the first item.
i = iter(l)
next(i)
for d in i:
print(d)
If MyCollection
is going to be garbage collected anyway, then you shouldn't need to dispose it. Doing so will just churn the CPU more than necessary, and may even invalidate some pre-calculated analysis that the garbage collector has already performed.
I use IDisposable
to do things like ensure threads are disposed correctly, along with unmanaged resources.
EDIT In response to Scott's comment:
The only time the GC performance metrics are affected is when a call the [sic] GC.Collect() is made"
Conceptually, the GC maintains a view of the object reference graph, and all references to it from the stack frames of threads. This heap can be quite large and span many pages of memory. As an optimisation, the GC caches its analysis of pages that are unlikely to change very often to avoid rescanning the page unnecessarily. The GC receives notification from the kernel when data in a page changes, so it knows that the page is dirty and requires a rescan. If the collection is in Gen0 then it's likely that other things in the page are changing too, but this is less likely in Gen1 and Gen2. Anecdotally, these hooks were not available in Mac OS X for the team who ported the GC to Mac in order to get the Silverlight plug-in working on that platform.
Another point against unnecessary disposal of resources: imagine a situation where a process is unloading. Imagine also that the process has been running for some time. Chances are that many of that process's memory pages have been swapped to disk. At the very least they're no longer in L1 or L2 cache. In such a situation there is no point for an application that's unloading to swap all those data and code pages back into memory to 'release' resources that are going to be released by the operating system anyway when the process terminates. This applies to managed and even certain unmanaged resources. Only resources that keep non-background threads alive must be disposed, otherwise the process will remain alive.
Now, during normal execution there are ephemeral resources that must be cleaned up correctly (as @fezmonkey points out database connections, sockets, window handles) to avoid unmanaged memory leaks. These are the kinds of things that have to be disposed. If you create some class that owns a thread (and by owns I mean that it created it and therefore is responsible for ensuring it stops, at least by my coding style), then that class most likely must implement IDisposable
and tear down the thread during Dispose
.
The .NET framework uses the IDisposable
interface as a signal, even warning, to developers that the this class must be disposed. I can't think of any types in the framework that implement IDisposable
(excluding explicit interface implementations) where disposal is optional.
You can override static methods, but if you try to use polymorphism, then they work according to class scope(Contrary to what we normally expect).
public class A {
public static void display(){
System.out.println("in static method of A");
}
}
public class B extends A {
void show(){
display();
}
public static void display(){
System.out.println("in static method of B");
}
}
public class Test {
public static void main(String[] args){
B obj =new B();
obj.show();
A a_obj=new B();
a_obj.display();
}
}
IN first case, o/p is the "in static method of B" # successful override In 2nd case, o/p is "in static method of A" # Static method - will not consider polymorphism
I was also wondering about the performance issue, and was hoping this would be optimised out by the compiler, based on the answer from @EmileCormier. However, I was worried that the test code he showed would still allow the compiler to optimise away the std::pow() call, since the same values were used in the call every time, which would allow the compiler to store the results and re-use it in the loop - this would explain the almost identical run-times for all cases. So I had a look into it too.
Here's the code I used (test_pow.cpp):
#include <iostream>
#include <cmath>
#include <chrono>
class Timer {
public:
explicit Timer () : from (std::chrono::high_resolution_clock::now()) { }
void start () {
from = std::chrono::high_resolution_clock::now();
}
double elapsed() const {
return std::chrono::duration_cast<std::chrono::milliseconds>(std::chrono::high_resolution_clock::now() - from).count() * 1.0e-6;
}
private:
std::chrono::high_resolution_clock::time_point from;
};
int main (int argc, char* argv[])
{
double total;
Timer timer;
total = 0.0;
timer.start();
for (double i = 0.0; i < 1.0; i += 1e-8)
total += std::pow (i,2);
std::cout << "std::pow(i,2): " << timer.elapsed() << "s (result = " << total << ")\n";
total = 0.0;
timer.start();
for (double i = 0.0; i < 1.0; i += 1e-8)
total += i*i;
std::cout << "i*i: " << timer.elapsed() << "s (result = " << total << ")\n";
std::cout << "\n";
total = 0.0;
timer.start();
for (double i = 0.0; i < 1.0; i += 1e-8)
total += std::pow (i,3);
std::cout << "std::pow(i,3): " << timer.elapsed() << "s (result = " << total << ")\n";
total = 0.0;
timer.start();
for (double i = 0.0; i < 1.0; i += 1e-8)
total += i*i*i;
std::cout << "i*i*i: " << timer.elapsed() << "s (result = " << total << ")\n";
return 0;
}
This was compiled using:
g++ -std=c++11 [-O2] test_pow.cpp -o test_pow
Basically, the difference is the argument to std::pow() is the loop counter. As I feared, the difference in performance is pronounced. Without the -O2 flag, the results on my system (Arch Linux 64-bit, g++ 4.9.1, Intel i7-4930) were:
std::pow(i,2): 0.001105s (result = 3.33333e+07)
i*i: 0.000352s (result = 3.33333e+07)
std::pow(i,3): 0.006034s (result = 2.5e+07)
i*i*i: 0.000328s (result = 2.5e+07)
With optimisation, the results were equally striking:
std::pow(i,2): 0.000155s (result = 3.33333e+07)
i*i: 0.000106s (result = 3.33333e+07)
std::pow(i,3): 0.006066s (result = 2.5e+07)
i*i*i: 9.7e-05s (result = 2.5e+07)
So it looks like the compiler does at least try to optimise the std::pow(x,2) case, but not the std::pow(x,3) case (it takes ~40 times longer than the std::pow(x,2) case). In all cases, manual expansion performed better - but particularly for the power 3 case (60 times quicker). This is definitely worth bearing in mind if running std::pow() with integer powers greater than 2 in a tight loop...
I had a memory leak problem recently and ko.cleanNode(element);
wouldn't do it for me -ko.removeNode(element);
did. Javascript + Knockout.js memory leak - How to make sure object is being destroyed?
There's a property for that:
a.m_title {
text-transform: capitalize;
}
If your links can contain multiple words and you only want the first letter of the first word to be uppercase, use :first-letter
with a different transform instead (although it doesn't really matter). Note that in order for :first-letter
to work your a
elements need to be block containers (which can be display: block
, display: inline-block
, or any of a variety of other combinations of one or more properties):
a.m_title {
display: block;
}
a.m_title:first-letter {
text-transform: uppercase;
}
I used custom DTO (interface) to map a native query to - the most flexible approach and refactoring-safe.
The problem I had with this - that surprisingly, the order of fields in the interface and the columns in the query matters. I got it working by ordering interface getters alphabetically and then ordering the columns in the query the same way.
Use the below:
var regEx = new RegExp(pattern1+'|'+pattern2, 'gi');
str.match(regEx);
If anyone still has problem, this is my code.
I have a custom view which is square (width = height) and I want to assign a character to it. onDraw()
shows how to get height of character, although I'm not using it. Character will be displayed in the middle of view.
public class SideBarPointer extends View {
private static final String TAG = "SideBarPointer";
private Context context;
private String label = "";
private int width;
private int height;
public SideBarPointer(Context context) {
super(context);
this.context = context;
init();
}
public SideBarPointer(Context context, AttributeSet attrs) {
super(context, attrs);
this.context = context;
init();
}
public SideBarPointer(Context context, AttributeSet attrs, int defStyle) {
super(context, attrs, defStyle);
this.context = context;
init();
}
private void init() {
// setBackgroundColor(0x64FF0000);
}
@Override
public void onMeasure(int widthMeasureSpec, int heightMeasureSpec){
super.onMeasure(widthMeasureSpec, heightMeasureSpec);
height = this.getMeasuredHeight();
width = this.getMeasuredWidth();
setMeasuredDimension(width, width);
}
protected void onDraw(Canvas canvas) {
float mDensity = context.getResources().getDisplayMetrics().density;
float mScaledDensity = context.getResources().getDisplayMetrics().scaledDensity;
Paint previewPaint = new Paint();
previewPaint.setColor(0x0C2727);
previewPaint.setAlpha(200);
previewPaint.setAntiAlias(true);
Paint previewTextPaint = new Paint();
previewTextPaint.setColor(Color.WHITE);
previewTextPaint.setAntiAlias(true);
previewTextPaint.setTextSize(90 * mScaledDensity);
previewTextPaint.setShadowLayer(5, 1, 2, Color.argb(255, 87, 87, 87));
float previewTextWidth = previewTextPaint.measureText(label);
// float previewTextHeight = previewTextPaint.descent() - previewTextPaint.ascent();
RectF previewRect = new RectF(0, 0, width, width);
canvas.drawRoundRect(previewRect, 5 * mDensity, 5 * mDensity, previewPaint);
canvas.drawText(label, (width - previewTextWidth)/2, previewRect.top - previewTextPaint.ascent(), previewTextPaint);
super.onDraw(canvas);
}
public void setLabel(String label) {
this.label = label;
Log.e(TAG, "Label: " + label);
this.invalidate();
}
}
SELECT CONVERT(varchar(11),Getdate(),105)
This should work for you:
Dim oShell
Dim iValue
Set oShell = CreateObject("WScript.Shell")
iValue = oShell.RegRead("HKLM\SOFTWARE\SOMETHINGSOMETHING")
simplexml_load_file()
interprets an XML file (either a file on your disk or a URL) into an object. What you have in $feed
is a string.
You have two options:
Use file_get_contents()
to get the XML feed as a string, and use e simplexml_load_string()
:
$feed = file_get_contents('...');
$items = simplexml_load_string($feed);
Load the XML feed directly using simplexml_load_file()
:
$items = simplexml_load_file('...');
Beautify does a good job. It provides a "Beautify on save" option, so that you may use ctrl+s to reformate html, less, css, etc
Method 1
Client : Send as JSON
$.ajax({
url: 'example.com/ajax/',
type: 'POST',
contentType: 'application/json; charset=utf-8',
processData: false,
data: JSON.stringify({'name':'John', 'age': 42}),
...
});
//Sent as a JSON object {'name':'John', 'age': 42}
Server :
data = json.loads(request.body) # {'name':'John', 'age': 42}
Method 2
Client : Send as x-www-form-urlencoded
(Note: contentType
& processData
have changed, JSON.stringify
is not needed)
$.ajax({
url: 'example.com/ajax/',
type: 'POST',
data: {'name':'John', 'age': 42},
contentType: 'application/x-www-form-urlencoded; charset=utf-8', //Default
processData: true,
});
//Sent as a query string name=John&age=42
Server :
data = request.POST # will be <QueryDict: {u'name':u'John', u'age': 42}>
Changed in 1.5+ : https://docs.djangoproject.com/en/dev/releases/1.5/#non-form-data-in-http-requests
Non-form data in HTTP requests :
request.POST will no longer include data posted via HTTP requests with non form-specific content-types in the header. In prior versions, data posted with content-types other than multipart/form-data or application/x-www-form-urlencoded would still end up represented in the request.POST attribute. Developers wishing to access the raw POST data for these cases, should use the request.body attribute instead.
Probably related
Check out Lists.partition(java.util.List, int)
from Google Guava:
Returns consecutive sublists of a list, each of the same size (the final list may be smaller). For example, partitioning a list containing
[a, b, c, d, e]
with a partition size of 3 yields[[a, b, c]
,[d, e]]
-- an outer list containing two inner lists of three and two elements, all in the original order.
I solved the problem by uninstalling NodeJs and gulp then re-installing both again.
To install gulp globally I executed the following command
npm install -g gulp
String.valueOf
(
Character.toChars(int)
)
Assuming the integer is, as you say, between 0 and 255, you'll get an array with a single character back from Character.toChars
, which will become a single-character string when passed to String.valueOf
.
Using Character.toChars
is preferable to methods involving a cast from int
to char
(i.e. (char) i
) for a number of reasons, including that Character.toChars
will throw an IllegalArgumentException
if you fail to properly validate the integer while the cast will swallow the error (per the narrowing primitive conversions specification), potentially giving an output other than what you intended.
What you've got (according to the debug image) is an object array containing a string array. So you need something like:
Object[] objects = (Object[]) values;
String[] strings = (String[]) objects[0];
You haven't shown the type of values
- if this is already Object[]
then you could just use (String[])values[0]
.
Of course even with the cast to Object[]
you could still do it in one statement, but it's ugly:
String[] strings = (String[]) ((Object[])values)[0];
Arrays in Java are of fixed size. What you'd need is an ArrayList, one of a number of extremely valuable Collections available in Java.
Instead of
Integer[] ints = new Integer[x]
you use
List<Integer> ints = new ArrayList<Integer>();
Then to change the list you use ints.add(y)
and ints.remove(z)
amongst many other handy methods you can find in the appropriate Javadocs.
I strongly recommend studying the Collections classes available in Java as they are very powerful and give you a lot of builtin functionality that Java-newbies tend to try to rewrite themselves unnecessarily.
You can save the best model using keras.callbacks.ModelCheckpoint()
Example:
model.compile(loss='categorical_crossentropy', optimizer='adam', metrics=['accuracy'])
model_checkpoint_callback = keras.callbacks.ModelCheckpoint("best_Model.h5",save_best_only=True)
history = model.fit(x_train,y_train,
epochs=10,
validation_data=(x_valid,y_valid),
callbacks=[model_checkpoint_callback])
This will save the best model in your working directory.
// db table name / blog_post / menu / site_title
// Insert into Table (column names separated with comma)
$sql = "INSERT INTO product_cate (site_title, sub_title)
VALUES ('$site_title', '$sub_title')";
// db table name / blog_post / menu / site_title
// Insert into Table (column names separated with comma)
$sql = "INSERT INTO menu (menu_title, sub_menu)
VALUES ('$menu_title', '$sub_menu', )";
// db table name / blog_post / menu / site_title
// Insert into Table (column names separated with comma)
$sql = "INSERT INTO blog_post (post_title, post_des, post_img)
VALUES ('$post_title ', '$post_des', '$post_img')";
str_replace('"', "", $string);
str_replace("'", "", $string);
I assume you mean quotation marks?
Otherwise, go for some regex, this will work for html quotes for example:
preg_replace("/<!--.*?-->/", "", $string);
C-style quotes:
preg_replace("/\/\/.*?\n/", "\n", $string);
CSS-style quotes:
preg_replace("/\/*.*?\*\//", "", $string);
bash-style quotes:
preg-replace("/#.*?\n/", "\n", $string);
Etc etc...
I agree with Chris Pratt. But I think it's better to create the symlink to original Django folder where the admin templates place in:
ln -s /usr/local/lib/python2.7/dist-packages/django/contrib/admin/templates/admin/ templates/django_admin
and as you can see it depends on python version and the folder where the Django installed. So in future or on a production server you might need to change the path.
The main concern is whether a variable inside the anonymous class instance can be resolved at run-time. It is not a must to make a variable final as long as it is guaranteed that the variable is inside the run-time scope. For example, please see the two variables _statusMessage and _statusTextView inside updateStatus() method.
public class WorkerService extends Service {
Worker _worker;
ExecutorService _executorService;
ScheduledExecutorService _scheduledStopService;
TextView _statusTextView;
@Override
public void onCreate() {
_worker = new Worker(this);
_worker.monitorGpsInBackground();
// To get a thread pool service containing merely one thread
_executorService = Executors.newSingleThreadExecutor();
// schedule something to run in the future
_scheduledStopService = Executors.newSingleThreadScheduledExecutor();
}
@Override
public int onStartCommand(Intent intent, int flags, int startId) {
ServiceRunnable runnable = new ServiceRunnable(this, startId);
_executorService.execute(runnable);
// the return value tells what the OS should
// do if this service is killed for resource reasons
// 1. START_STICKY: the OS restarts the service when resources become
// available by passing a null intent to onStartCommand
// 2. START_REDELIVER_INTENT: the OS restarts the service when resources
// become available by passing the last intent that was passed to the
// service before it was killed to onStartCommand
// 3. START_NOT_STICKY: just wait for next call to startService, no
// auto-restart
return Service.START_NOT_STICKY;
}
@Override
public void onDestroy() {
_worker.stopGpsMonitoring();
}
@Override
public IBinder onBind(Intent intent) {
return null;
}
class ServiceRunnable implements Runnable {
WorkerService _theService;
int _startId;
String _statusMessage;
public ServiceRunnable(WorkerService theService, int startId) {
_theService = theService;
_startId = startId;
}
@Override
public void run() {
_statusTextView = MyActivity.getActivityStatusView();
// get most recently available location as a latitude /
// longtitude
Location location = _worker.getLocation();
updateStatus("Starting");
// convert lat/lng to a human-readable address
String address = _worker.reverseGeocode(location);
updateStatus("Reverse geocoding");
// Write the location and address out to a file
_worker.save(location, address, "ResponsiveUx.out");
updateStatus("Done");
DelayedStopRequest stopRequest = new DelayedStopRequest(_theService, _startId);
// schedule a stopRequest after 10 seconds
_theService._scheduledStopService.schedule(stopRequest, 10, TimeUnit.SECONDS);
}
void updateStatus(String message) {
_statusMessage = message;
if (_statusTextView != null) {
_statusTextView.post(new Runnable() {
@Override
public void run() {
_statusTextView.setText(_statusMessage);
}
});
}
}
}
cp somefile somefile_`date +%d%b%Y`
Bit rate:- Bit rate is nothing but number of bits transmitted per second.For example if Bit rate is 1000bps then 1000 bits are i.e. 0s or 1s transmitted per second.
Baud rate:- It means number of time signal changes its state.When the signal is binary then baud rate and bit rate are same.
I accomplished this by creating a ::before selector for the first inline element in the row, and making that selector a block with a top or bottom margin to separate rows a little bit.
.1st_item::before
{
content:"";
display:block;
margin-top: 5px;
}
.1st_item
{
color:orange;
font-weight: bold;
margin-right: 1em;
}
.2nd_item
{
color: blue;
}
It is the ternary conditional operator.
If the condition in the parenthesis before the ?
is true, it returns the value to the left of the :
, otherwise the value to the right.
I know of plotyy that allows you to have two y-axes, but no "plotyyy"!
Perhaps you can normalize the y values to have the same scale (min/max normalization, zscore standardization, etc..), then you can just easily plot them using normal plot, hold
sequence.
Here's an example:
%# random data
x=1:20;
y = [randn(20,1)*1 + 0 , randn(20,1)*5 + 10 , randn(20,1)*0.3 + 50];
%# plotyy
plotyy(x,y(:,1), x,y(:,3))
%# orginial
figure
subplot(221), plot(x,y(:,1), x,y(:,2), x,y(:,3))
title('original'), legend({'y1' 'y2' 'y3'})
%# normalize: (y-min)/(max-min) ==> [0,1]
yy = bsxfun(@times, bsxfun(@minus,y,min(y)), 1./range(y));
subplot(222), plot(x,yy(:,1), x,yy(:,2), x,yy(:,3))
title('minmax')
%# standarize: (y - mean) / std ==> N(0,1)
yy = zscore(y);
subplot(223), plot(x,yy(:,1), x,yy(:,2), x,yy(:,3))
title('zscore')
%# softmax normalization with logistic sigmoid ==> [0,1]
yy = 1 ./ ( 1 + exp( -zscore(y) ) );
subplot(224), plot(x,yy(:,1), x,yy(:,2), x,yy(:,3))
title('softmax')
This works just fine, but instead of
name = input('Enter name of text file: ')+'.txt'
you should use
name = raw_input('Enter name of text file: ')+'.txt'
along with
open(name,'a') or open(name,'w')
For those not sure about which peak-finding algorithms to use in Python, here a rapid overview of the alternatives: https://github.com/MonsieurV/py-findpeaks
Wanting myself an equivalent to the MatLab findpeaks
function, I've found that the detect_peaks function from Marcos Duarte is a good catch.
Pretty easy to use:
import numpy as np
from vector import vector, plot_peaks
from libs import detect_peaks
print('Detect peaks with minimum height and distance filters.')
indexes = detect_peaks.detect_peaks(vector, mph=7, mpd=2)
print('Peaks are: %s' % (indexes))
Which will give you:
I think the best answer is
int words = 0;
int lines = 0;
int chars = 0;
while(in.hasNextLine()) {
lines++;
String line = in.nextLine();
for(int i=0;i<line.length();i++)
{
if(line.charAt(i)!=' ' && line.charAt(i)!='\n')
chars ++;
}
words += new StringTokenizer(line, " ,").countTokens();
}
num_lines = sum(1 for line in open('my_file.txt'))
is probably best, an alternative for this is
num_lines = len(open('my_file.txt').read().splitlines())
Here is the comparision of performance of both
In [20]: timeit sum(1 for line in open('Charts.ipynb'))
100000 loops, best of 3: 9.79 µs per loop
In [21]: timeit len(open('Charts.ipynb').read().splitlines())
100000 loops, best of 3: 12 µs per loop
Note :- Do not use script tag in external JavaScript file.
<html>
<head>
</head>
<body>
<p id="cn"> Click on the button to change the light button</p>
<button type="button" onclick="changefont()">Click</button>
<script src="external.js"></script>
</body>
External Java Script file:-
function changefont()
{
var x = document.getElementById("cn");
x.style.fontSize = "25px";
x.style.color = "red";
}
Join on one-to-many relation in JPQL looks as follows:
select b.fname, b.lname from Users b JOIN b.groups c where c.groupName = :groupName
When several properties are specified in select
clause, result is returned as Object[]
:
Object[] temp = (Object[]) em.createNamedQuery("...")
.setParameter("groupName", groupName)
.getSingleResult();
String fname = (String) temp[0];
String lname = (String) temp[1];
By the way, why your entities are named in plural form, it's confusing. If you want to have table names in plural, you may use @Table
to specify the table name for the entity explicitly, so it doesn't interfere with reserved words:
@Entity @Table(name = "Users")
public class User implements Serializable { ... }
Why would you make it VARCHAR? It doesn't vary. It's always 64 characters, which can be determined by running anything into one of the online SHA-256 calculators.
As of Telegram Desktop 1.3 you can format your messages and add links.
[Ctrl+K] = create link (https://my.website)
Other useful hotkeys are:
[Ctrl+B] = bold
[Ctrl+I] = italic
[Ctrl+Shift+M] = monospace
[Ctrl+Shift+N] = clear formatting
Define two dates using new Date(). Calculate the time difference of two dates using date2. getTime() – date1. getTime(); Calculate the no. of days between two dates, divide the time difference of both the dates by no. of milliseconds in a day (10006060*24)
Use memcpy
in C, std::copy
in C++.
If you're doing the check inside the View, put the value in the ViewBag
.
In your controller:
ViewBag["parameterName"] = Request["parameterName"];
It's worth noting that the Request
and Response
properties are exposed by the Controller
class. They have the same semantics as HttpRequest
and HttpResponse
.
Use a column to let each date be shown as month number; another column for day number:
A B C D
----- ----- ----------- --------
1 8 6 8/6/2010 12.70
2 8 7 8/7/2010 10.50
3 8 7 8/7/2010 7.10
4 8 9 8/9/2010 10.50
5 8 10 8/10/2010 15.00
The formula for A1
is =Month(C1)
The formula for B1
is =Day(C1)
For Month sums, put the month number next to each month:
E F G
----- ----- -------------
1 7 July $1,000,010
2 8 Aug $1,200,300
The formula for G1
is =SumIf($A$1:$A$100, E1, $D$1:$D$100)
. This is a portable formula; just copy it down.
Total for the day will be be a bit more complicated, but you can probably see how to do it.
From my experience with GCC I know that static
and static inline
differs in a way how compiler issue warnings about unused functions. More precisely when you declare static
function and it isn't used in current translation unit then compiler produce warning about unused function, but you can inhibit that warning with changing it to static inline
.
Thus I tend to think that static
should be used in translation units and benefit from extra check compiler does to find unused functions. And static inline
should be used in header files to provide functions that can be in-lined (due to absence of external linkage) without issuing warnings.
Unfortunately I cannot find any evidence for that logic. Even from GCC documentation I wasn't able to conclude that inline
inhibits unused function warnings. I'd appreciate if someone will share links to description of that.
The standard way to do this is as follows:
Provide:
and get in return a Integer between min and max, inclusive.
Random rand = new Random();
// nextInt as provided by Random is exclusive of the top value so you need to add 1
int randomNum = rand.nextInt((max - min) + 1) + min;
See the relevant JavaDoc.
As explained by Aurund, Random objects created within a short time of each other will tend to produce similar output, so it would be a good idea to keep the created Random object as a field, rather than in a method.
In Windows 7 and later, this will do the trick for you
The menu item Copy as Path is not available in Windows XP.
*Note : This will show popup once per browser as the data is stored in browser memory.
Try HTML localStorage.
Methods :
localStorage.getItem('key');
localStorage.setItem('key','value');
$j(document).ready(function() {
if(localStorage.getItem('popState') != 'shown'){
$j('#popup').delay(2000).fadeIn();
localStorage.setItem('popState','shown')
}
$j('#popup-close, #popup').click(function() // You are clicking the close button
{
$j('#popup').fadeOut(); // Now the pop up is hidden.
});
});
Try this:
& "C:\Program Files (x86)\Microsoft Configuration Manager\AdminConsole\bin\i386\CmRcViewer.exe" PCNAME
To PowerShell a string "..." is just a string and PowerShell evaluates it by echoing it to the screen. To get PowerShell to execute the command whose name is in a string, you use the call operator &
.
SELECT field,datetime_field
FROM database
WHERE datetime_field > (CURRENT_DATE - 1)
Its been some time that I worked on Oracle. But, I think this should work.
This should work:
grep(pattern = 'A1|A9|A6', x = myfile$Letter)
Or even more simply:
library(data.table)
myfile$Letter %like% 'A1|A9|A6'
There are many ways to do it:
One way:
#mybox:hover {
display:none;
}
Another way:
#mybox:hover {
visibility: hidden;
}
Or you could just do:
#mybox:hover {
background:transparent;
color:transparent;
}
Which model is the "best fitting model" depends on what you mean by "best". R has tools to help, but you need to provide the definition for "best" to choose between them. Consider the following example data and code:
x <- 1:10
y <- x + c(-0.5,0.5)
plot(x,y, xlim=c(0,11), ylim=c(-1,12))
fit1 <- lm( y~offset(x) -1 )
fit2 <- lm( y~x )
fit3 <- lm( y~poly(x,3) )
fit4 <- lm( y~poly(x,9) )
library(splines)
fit5 <- lm( y~ns(x, 3) )
fit6 <- lm( y~ns(x, 9) )
fit7 <- lm( y ~ x + cos(x*pi) )
xx <- seq(0,11, length.out=250)
lines(xx, predict(fit1, data.frame(x=xx)), col='blue')
lines(xx, predict(fit2, data.frame(x=xx)), col='green')
lines(xx, predict(fit3, data.frame(x=xx)), col='red')
lines(xx, predict(fit4, data.frame(x=xx)), col='purple')
lines(xx, predict(fit5, data.frame(x=xx)), col='orange')
lines(xx, predict(fit6, data.frame(x=xx)), col='grey')
lines(xx, predict(fit7, data.frame(x=xx)), col='black')
Which of those models is the best? arguments could be made for any of them (but I for one would not want to use the purple one for interpolation).
Use a pivot table. You can manually refresh a pivot table's data source by right-clicking on it and clicking refresh. Otherwise you can set up a worksheet_change macro - or just a refresh button. Pivot Table tutorial is here: http://chandoo.org/wp/2009/08/19/excel-pivot-tables-tutorial/
1) Create a Month column from your Date column (e.g. =TEXT(B2,"MMM")
)
2) Create a Year column from your Date column (e.g. =TEXT(B2,"YYYY")
)
3) Add a Count column, with "1" for each value
4) Create a Pivot table with the fields, Count, Month and Year 5) Drag the Year and Month fields into Row Labels. Ensure that Year is above month so your Pivot table first groups by year, then by month 6) Drag the Count field into Values to create a Count of Count
There are better tutorials I'm sure just google/bing "pivot table tutorial".
In order to reduce the verbosity of the validation logic I have authored a library for Android. It takes care of most of the day to day validations using Annotations and built-in rules. There are constraints such as @TextRule
, @NumberRule
, @Required
, @Regex
, @Email
, @IpAddress
, @Password
, etc.,
You can add these annotations to your UI widget references and perform validations. It also allows you to perform validations asynchronously which is ideal for situations such as checking for unique username from a remote server.
There is a example on the project home page on how to use annotations. You can also read the associated blog post where I have written sample codes on how to write custom rules for validations.
Here is a simple example that depicts the usage of the library.
@Required(order = 1)
@Email(order = 2)
private EditText emailEditText;
@Password(order = 3)
@TextRule(order = 4, minLength = 6, message = "Enter at least 6 characters.")
private EditText passwordEditText;
@ConfirmPassword(order = 5)
private EditText confirmPasswordEditText;
@Checked(order = 6, message = "You must agree to the terms.")
private CheckBox iAgreeCheckBox;
The library is extendable, you can write your own rules by extending the Rule
class.
<>
means not equal to, !=
also means not equal to.
You can set a default value at creation time like:
CREATE TABLE Persons (
ID int NOT NULL,
LastName varchar(255) NOT NULL,
FirstName varchar(255),
Age int,
Married boolean DEFAULT false);
instanceof is a keyword that can be used to test if an object is of a specified type.
Example :
public class MainClass {
public static void main(String[] a) {
String s = "Hello";
int i = 0;
String g;
if (s instanceof java.lang.String) {
// This is going to be printed
System.out.println("s is a String");
}
if (i instanceof Integer) {
// This is going to be printed as autoboxing will happen (int -> Integer)
System.out.println("i is an Integer");
}
if (g instanceof java.lang.String) {
// This case is not going to happen because g is not initialized and
// therefore is null and instanceof returns false for null.
System.out.println("g is a String");
}
}
Here is my source.
The current(initial) directory of shell script is the directory from which you have called the script.
Use extension for UIImageView to Load URL Images.
let imageCache = NSCache<NSString, UIImage>()
extension UIImageView {
func imageURLLoad(url: URL) {
DispatchQueue.global().async { [weak self] in
func setImage(image:UIImage?) {
DispatchQueue.main.async {
self?.image = image
}
}
let urlToString = url.absoluteString as NSString
if let cachedImage = imageCache.object(forKey: urlToString) {
setImage(image: cachedImage)
} else if let data = try? Data(contentsOf: url), let image = UIImage(data: data) {
DispatchQueue.main.async {
imageCache.setObject(image, forKey: urlToString)
setImage(image: image)
}
}else {
setImage(image: nil)
}
}
}
}
@echo off
SETLOCAL ENABLEDELAYEDEXPANSION
SET old=Vacation2010
SET new=December
for /f "tokens=*" %%f in ('dir /b *.jpg') do (
SET newname=%%f
SET newname=!newname:%old%=%new%!
move "%%f" "!newname!"
)
What this does is it loops over all .jpg files in the folder where the batch file is located and replaces the Vacation2010 with December inside the filenames.
When the softkeyboard appears, it changes the size of main layout, and what you need do is to make a listener for that mainlayout and within that listener, add the code scrollT0(x,y)
to scroll up.
There isn't really a "private method" in Objective-C, if the runtime can work out which implementation to use it will do it. But that's not to say that there aren't methods which aren't part of the documented interface. For those methods I think that a category is fine. Rather than putting the @interface
at the top of the .m file like your point 2, I'd put it into its own .h file. A convention I follow (and have seen elsewhere, I think it's an Apple convention as Xcode now gives automatic support for it) is to name such a file after its class and category with a + separating them, so @interface GLObject (PrivateMethods)
can be found in GLObject+PrivateMethods.h
. The reason for providing the header file is so that you can import it in your unit test classes :-).
By the way, as far as implementing/defining methods near the end of the .m file is concerned, you can do that with a category by implementing the category at the bottom of the .m file:
@implementation GLObject(PrivateMethods)
- (void)secretFeature;
@end
or with a class extension (the thing you call an "empty category"), just define those methods last. Objective-C methods can be defined and used in any order in the implementation, so there's nothing to stop you putting the "private" methods at the end of the file.
Even with class extensions I will often create a separate header (GLObject+Extension.h
) so that I can use those methods if required, mimicking "friend" or "protected" visibility.
Since this answer was originally written, the clang compiler has started doing two passes for Objective-C methods. This means you can avoid declaring your "private" methods completely, and whether they're above or below the calling site they'll be found by the compiler.
If you want to remove newly added contents and files which are already staged (so added to the index) then you use:
git reset --hard
If you want to remove also your latest commit (is the one with the message "blah") then better to use:
git reset --hard HEAD^
To remove the untracked files (so new files not yet added to the index) and folders use:
git clean --force -d
Two things which can be done more efficiently:
StringBuilder
instead of StringBuffer
since it's the faster and younger brother.BufferedReader#readLine()
to read it line by line instead of reading it char by char.HttpResponse response; // some response object
BufferedReader reader = new BufferedReader(new InputStreamReader(response.getEntity().getContent(), "UTF-8"));
StringBuilder builder = new StringBuilder();
for (String line = null; (line = reader.readLine()) != null;) {
builder.append(line).append("\n");
}
JSONTokener tokener = new JSONTokener(builder.toString());
JSONArray finalResult = new JSONArray(tokener);
If the JSON is actually a single line, then you can also remove the loop and builder.
HttpResponse response; // some response object
BufferedReader reader = new BufferedReader(new InputStreamReader(response.getEntity().getContent(), "UTF-8"));
String json = reader.readLine();
JSONTokener tokener = new JSONTokener(json);
JSONArray finalResult = new JSONArray(tokener);
Since there is a lot of confusion about queries MongoDB collection with sub-documents, I thought its worth to explain the above answers with examples:
First I have inserted only two objects in the collection namely: message
as:
> db.messages.find().pretty()
{
"_id" : ObjectId("5cce8e417d2e7b3fe9c93c32"),
"headers" : {
"From" : "[email protected]"
}
}
{
"_id" : ObjectId("5cce8eb97d2e7b3fe9c93c33"),
"headers" : {
"From" : "[email protected]",
"To" : "[email protected]"
}
}
>
So what is the result of query:
db.messages.find({headers: {From: "[email protected]"} }).count()
It should be one because these queries for documents where headers
equal to the object {From: "[email protected]"}
, only i.e. contains no other fields or we should specify the entire sub-document as the value of a field.
So as per the answer from @Edmondo1984
Equality matches within sub-documents select documents if the subdocument matches exactly the specified sub-document, including the field order.
From the above statements, what is the below query result should be?
> db.messages.find({headers: {To: "[email protected]", From: "[email protected]"} }).count()
0
And what if we will change the order of From
and To
i.e same as sub-documents of second documents?
> db.messages.find({headers: {From: "[email protected]", To: "[email protected]"} }).count()
1
so, it matches exactly the specified sub-document, including the field order.
For using dot operator, I think it is very clear for every one. Let's see the result of below query:
> db.messages.find( { 'headers.From': "[email protected]" } ).count()
2
I hope these explanations with the above example will make someone more clarity on find query with sub-documents.
To answer your question, and get the Prefix
too, for MySQL you can do:
select Prefix, CR, length(CR) from table1 order by length(CR) DESC limit 1;
and it will return
+-------+----------------------------+--------------------+
| Prefix| CR | length(CR) |
+-------+----------------------------+--------------------+
| g | ;#WR_1;#WR_2;#WR_3;#WR_4;# | 26 |
+-------+----------------------------+--------------------+
1 row in set (0.01 sec)
$SQL_Part="("
$i=0;
while ($i<length($cat)-1)
{
$SQL_Part+=$cat[i]+",";
}
$SQL_Part=$SQL_Part+$cat[$i+1]+")"
$SQL="SELECT * FROM products WHERE catid IN "+$SQL_Part;
It's more generic and will fit for any array!!
Firefox and other programs allow you to increase and decrease the font size with C-+ and C--. I set up my .emacs so that I have that same ability by adding these lines of code:
(global-set-key [C-kp-add] 'text-scale-increase)
(global-set-key [C-kp-subtract] 'text-scale-decrease)
// first need to reset current manager
$em->resetManager();
// and then get new
$em = $this->getContainer()->get("doctrine");
// or in this way, depending of your environment:
$em = $this->getDoctrine();
R defines a ~
(tilde) operator for use in formulas. Formulas have all sorts of uses, but perhaps the most common is for regression:
library(datasets)
lm( myFormula, data=iris)
help("~")
or help("formula")
will teach you more.
@Spacedman has covered the basics. Let's discuss how it works.
First, being an operator, note that it is essentially a shortcut to a function (with two arguments):
> `~`(lhs,rhs)
lhs ~ rhs
> lhs ~ rhs
lhs ~ rhs
That can be helpful to know for use in e.g. apply
family commands.
Second, you can manipulate the formula as text:
oldform <- as.character(myFormula) # Get components
myFormula <- as.formula( paste( oldform[2], "Sepal.Length", sep="~" ) )
Third, you can manipulate it as a list:
myFormula[[2]]
myFormula[[3]]
Finally, there are some helpful tricks with formulae (see help("formula")
for more):
myFormula <- Species ~ .
For example, the version above is the same as the original version, since the dot means "all variables not yet used." This looks at the data.frame you use in your eventual model call, sees which variables exist in the data.frame but aren't explicitly mentioned in your formula, and replaces the dot with those missing variables.
Choice one! But the first is very simple. The last maybe util for file manipulation:
//Method 1 (I like this)
File.AppendAllLines(
"FileAppendAllLines.txt",
new string[] { "line1", "line2", "line3" });
//Method 2
File.AppendAllText(
"FileAppendAllText.txt",
"line1" + Environment.NewLine +
"line2" + Environment.NewLine +
"line3" + Environment.NewLine);
//Method 3
using (StreamWriter stream = File.AppendText("FileAppendText.txt"))
{
stream.WriteLine("line1");
stream.WriteLine("line2");
stream.WriteLine("line3");
}
//Method 4
using (StreamWriter stream = new StreamWriter("StreamWriter.txt", true))
{
stream.WriteLine("line1");
stream.WriteLine("line2");
stream.WriteLine("line3");
}
//Method 5
using (StreamWriter stream = new FileInfo("FileInfo.txt").AppendText())
{
stream.WriteLine("line1");
stream.WriteLine("line2");
stream.WriteLine("line3");
}
Deleting or corrupting the pom.xml file can cause this error.
To add one year to todays date use the following:
$oneYearOn = date('Y-m-d',strtotime(date("Y-m-d", mktime()) . " + 365 day"));
For the other examples you must initialize $StartingDate with a timestamp value for example:
$StartingDate = mktime(); // todays date as a timestamp
Try this
$newEndingDate = date("Y-m-d", strtotime(date("Y-m-d", strtotime($StaringDate)) . " + 365 day"));
or
$newEndingDate = date("Y-m-d", strtotime(date("Y-m-d", strtotime($StaringDate)) . " + 1 year"));
Create class which extend RecyclerView class
public class NonScrollRecyclerView extends RecyclerView {
public NonScrollRecyclerView(Context context) {
super(context);
}
public NonScrollRecyclerView(Context context, @Nullable AttributeSet attrs) {
super(context, attrs);
}
public NonScrollRecyclerView(Context context, @Nullable AttributeSet attrs, int defStyle) {
super(context, attrs, defStyle);
}
@Override
protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) {
int heightMeasureSpec_custom = MeasureSpec.makeMeasureSpec(
Integer.MAX_VALUE >> 2, MeasureSpec.AT_MOST);
super.onMeasure(widthMeasureSpec, heightMeasureSpec_custom);
ViewGroup.LayoutParams params = getLayoutParams();
params.height = getMeasuredHeight();
}
}
This will disable the scroll event, but not the click events
Use this in your XML do the following:
<com.yourpackage.xyx.NonScrollRecyclerView
...
...
/>
Simple like this:
import math
def my_cdf(x):
return 0.5*(1+math.erf(x/math.sqrt(2)))
I found the formula in this page https://www.danielsoper.com/statcalc/formulas.aspx?id=55
Another way is,
mysql > SHOW CREATE TABLE my_db.my_table;
You should get the table name and create table sql
Try this way: (for example delete the job)
curl --silent --show-error http://<username>:<api-token>@<jenkins-server>/job/<job-name>/doDelete
The api-token can be obtained from http://<jenkins-server>/user/<username>/configure
.
This is a pretty old question...but if your use case here is to simply send a particular HTML page to the browser on an ad hoc basis, I would use something simple like this:
var http = require('http')
, fs = require('fs');
var server = http.createServer(function(req, res){
var stream = fs.createReadStream('test.html');
stream.pipe(res);
});
server.listen(7000);
Piggybacking on Nicola's answer with some readable php
$a = mysqli_query($conn,"select * from information_schema.columns
where table_schema = 'your_db'
order by table_name,ordinal_position");
$b = mysqli_fetch_all($a,MYSQLI_ASSOC);
$d = array();
foreach($b as $c){
if(!is_array($d[$c['TABLE_NAME']])){
$d[$c['TABLE_NAME']] = array();
}
$d[$c['TABLE_NAME']][] = $c['COLUMN_NAME'];
}
echo "<pre>",print_r($d),"</pre>";
It could be not supported file encoding. Change it to UTF-8 for example.
I've done this using Sublime
If you're up for it, use the DateTime class
There's a hook called useLocation in react-router v5, no need for HOC or other stuff, it's very succinctly and convenient.
import { useLocation } from 'react-router-dom';
const ExampleComponent: React.FC = () => {
const location = useLocation();
return (
<Router basename='/app'>
<main>
<AppBar handleMenuIcon={this.handleMenuIcon} title={location.pathname} />
</main>
</Router>
);
}
Use computeDistanceBetween() Google map API method to calculate near marker between your location and markers list on google map.
Steps:-
Create marker on google map.
function addMarker(location) {
var marker = new google.maps.Marker({
title: 'User added marker',
icon: {
path: google.maps.SymbolPath.BACKWARD_CLOSED_ARROW,
scale: 5
},
position: location,
map: map
});
}
On Mouse click create event for getting lat, long of your location and pass that to find_closest_marker().
function find_closest_marker(event) {
var distances = [];
var closest = -1;
for (i = 0; i < markers.length; i++) {
var d = google.maps.geometry.spherical.computeDistanceBetween(markers[i].position, event.latLng);
distances[i] = d;
if (closest == -1 || d < distances[closest]) {
closest = i;
}
}
alert('Closest marker is: ' + markers[closest].getTitle());
}
visit this link follow the steps. You will able to get nearer marker to your location.
From Android Studio v3 and up, Infer Constraint was removed from the dropdown.
Use the magic wand icon in the toolbar menu above the design preview; there is the "Infer Constraints" button. Click on this button, this will automatically add some lines in the text field and the red line will be removed.
You should make a habit of looking at the documentation for stuff like this. It's very useful and will improve your skills very quickly. Here's the relevant bit when you do git help diff
git diff [options] [--no-index] [--] <path> <path>
The two <path>
s are what you need to change to the directories in question.
Add the following style to your h3
elements:
word-wrap: break-word;
This will cause the long URLs in them to wrap. The default setting for word-wrap is normal
, which will wrap only at a limited set of split tokens (e.g. whitespaces, hyphens), which are not present in a URL.
Try select substr(orderno, 1,2) from shipment;
Use the str.isspace()
method:
Return
True
if there are only whitespace characters in the string and there is at least one character,False
otherwise.A character is whitespace if in the Unicode character database (see unicodedata), either its general category is Zs (“Separator, space”), or its bidirectional class is one of WS, B, or S.
Combine that with a special case for handling the empty string.
Alternatively, you could use str.strip()
and check if the result is empty.
You can use .empty()
, like this:
$("#foo").empty();
Remove all child nodes of the set of matched elements from the DOM.
Suppose there are two div
s like this:
.second {_x000D_
cursor: default;_x000D_
user-select: none;_x000D_
-webkit-user-select: none;_x000D_
/* Chrome/Safari/Opera */_x000D_
-moz-user-select: none;_x000D_
/* Firefox */_x000D_
-ms-user-select: none;_x000D_
/* Internet Explorer/Edge */_x000D_
-webkit-touch-callout: none;_x000D_
/* iOS Safari */_x000D_
}
_x000D_
<div class="first">_x000D_
This is my first div_x000D_
</div>_x000D_
_x000D_
<div class="second">_x000D_
This is my second div_x000D_
</div>
_x000D_
Set cursor to default so that it will give a unselectable feel to the user.
Prefix need to be used to support it in all browsers. Without a prefix this may not work in all the answers.
You can use numpy's polyfit. I use the following (you can safely remove the bit about coefficient of determination and error bounds, I just think it looks nice):
#!/usr/bin/python3
import numpy as np
import matplotlib.pyplot as plt
import csv
with open("example.csv", "r") as f:
data = [row for row in csv.reader(f)]
xd = [float(row[0]) for row in data]
yd = [float(row[1]) for row in data]
# sort the data
reorder = sorted(range(len(xd)), key = lambda ii: xd[ii])
xd = [xd[ii] for ii in reorder]
yd = [yd[ii] for ii in reorder]
# make the scatter plot
plt.scatter(xd, yd, s=30, alpha=0.15, marker='o')
# determine best fit line
par = np.polyfit(xd, yd, 1, full=True)
slope=par[0][0]
intercept=par[0][1]
xl = [min(xd), max(xd)]
yl = [slope*xx + intercept for xx in xl]
# coefficient of determination, plot text
variance = np.var(yd)
residuals = np.var([(slope*xx + intercept - yy) for xx,yy in zip(xd,yd)])
Rsqr = np.round(1-residuals/variance, decimals=2)
plt.text(.9*max(xd)+.1*min(xd),.9*max(yd)+.1*min(yd),'$R^2 = %0.2f$'% Rsqr, fontsize=30)
plt.xlabel("X Description")
plt.ylabel("Y Description")
# error bounds
yerr = [abs(slope*xx + intercept - yy) for xx,yy in zip(xd,yd)]
par = np.polyfit(xd, yerr, 2, full=True)
yerrUpper = [(xx*slope+intercept)+(par[0][0]*xx**2 + par[0][1]*xx + par[0][2]) for xx,yy in zip(xd,yd)]
yerrLower = [(xx*slope+intercept)-(par[0][0]*xx**2 + par[0][1]*xx + par[0][2]) for xx,yy in zip(xd,yd)]
plt.plot(xl, yl, '-r')
plt.plot(xd, yerrLower, '--r')
plt.plot(xd, yerrUpper, '--r')
plt.show()
Without a nicer solution, what I found to work is simply building my query string in the bean return:
public String submit() {
// Do something
return "/page2.xhtml?faces-redirect=true&id=" + id;
}
Not the most flexible of solutions, but seems to work how I want it to.
Also using this approach to clean up the process of building the query string: http://www.warski.org/blog/?p=185
You use List#get(int index)
to get an object with the index index
in the list. You use it like that:
List<ExampleClass> list = new ArrayList<ExampleClass>();
list.add(new ExampleClass());
list.add(new ExampleClass());
list.add(new ExampleClass());
ExampleClass exampleObj = list.get(2); // will get the 3rd element in the list (index 2);
import cookielib
import urllib
import urllib2
url = 'http://www.someserver.com/auth/login'
values = {'email-email' : '[email protected]',
'password-clear' : 'Combination',
'password-password' : 'mypassword' }
data = urllib.urlencode(values)
cookies = cookielib.CookieJar()
opener = urllib2.build_opener(
urllib2.HTTPRedirectHandler(),
urllib2.HTTPHandler(debuglevel=0),
urllib2.HTTPSHandler(debuglevel=0),
urllib2.HTTPCookieProcessor(cookies))
response = opener.open(url, data)
the_page = response.read()
http_headers = response.info()
# The login cookies should be contained in the cookies variable
For more information visit: https://docs.python.org/2/library/urllib2.html
It is possible to do everything you want. Aaron's answer was not quite complete.
His approach is correct, up to creating the temporary table in the inner query. Then, you need to insert the results into a table in the outer query.
The following code snippet grabs the first line of a file and inserts it into the table @Lines:
declare @fieldsep char(1) = ',';
declare @recordsep char(1) = char(10);
declare @Lines table (
line varchar(8000)
);
declare @sql varchar(8000) = '
create table #tmp (
line varchar(8000)
);
bulk insert #tmp
from '''+@filename+'''
with (FirstRow = 1, FieldTerminator = '''+@fieldsep+''', RowTerminator = '''+@recordsep+''');
select * from #tmp';
insert into @Lines
exec(@sql);
select * from @lines
An important example of the use of LSP is in software testing.
If I have a class A that is an LSP-compliant subclass of B, then I can reuse the test suite of B to test A.
To fully test subclass A, I probably need to add a few more test cases, but at the minimum I can reuse all of superclass B's test cases.
A way to realize is this by building what McGregor calls a "Parallel hierarchy for testing": My ATest
class will inherit from BTest
. Some form of injection is then needed to ensure the test case works with objects of type A rather than of type B (a simple template method pattern will do).
Note that reusing the super-test suite for all subclass implementations is in fact a way to test that these subclass implementations are LSP-compliant. Thus, one can also argue that one should run the superclass test suite in the context of any subclass.
See also the answer to the Stackoverflow question "Can I implement a series of reusable tests to test an interface's implementation?"
this is very basic method to send plain text email using mail function.
<?php
$to = '[email protected]';
$subject = 'This is subject';
$message = 'This is body of email';
$from = "From: FirstName LastName <[email protected]>";
mail($to,$subject,$message,$from);
With SQL Server 2012 (11.x) and later and Azure SQL Database, you can also have "fetch_row_count_expression", you can also have ORDER BY clause along with this.
USE AdventureWorks2012;
GO
-- Specifying variables for OFFSET and FETCH values
DECLARE @skip int = 0 , @take int = 8;
SELECT DepartmentID, Name, GroupName
FROM HumanResources.Department
ORDER BY DepartmentID ASC
OFFSET @skip ROWS
FETCH NEXT @take ROWS ONLY;
Note OFFSET Specifies the number of rows to skip before it starts to return rows from the query expression. It is NOT the starting row number. So, it has to be 0 to include first record.
You can just use sum(people$Weight)
.
sum
sums up a vector, and people$Weight
retrieves the weight column from your data frame.
Note - you can get built-in help by using ?sum
, ?colSums
, etc. (by the way, colSums
will give you the sum for each column).
The parseInt
function allows you to specify a radix for the input string and is limited to integer values.
parseInt('Z', 36) === 35
The Number
constructor called as a function will parse the string with a grammar and is limited to base 10 and base 16.
StringNumericLiteral ::: StrWhiteSpaceopt StrWhiteSpaceopt StrNumericLiteral StrWhiteSpaceopt StrWhiteSpace ::: StrWhiteSpaceChar StrWhiteSpaceopt StrWhiteSpaceChar ::: WhiteSpace LineTerminator StrNumericLiteral ::: StrDecimalLiteral HexIntegerLiteral StrDecimalLiteral ::: StrUnsignedDecimalLiteral + StrUnsignedDecimalLiteral - StrUnsignedDecimalLiteral StrUnsignedDecimalLiteral ::: Infinity DecimalDigits . DecimalDigitsopt ExponentPartopt . DecimalDigits ExponentPartopt DecimalDigits ExponentPartopt DecimalDigits ::: DecimalDigit DecimalDigits DecimalDigit DecimalDigit ::: one of 0 1 2 3 4 5 6 7 8 9 ExponentPart ::: ExponentIndicator SignedInteger ExponentIndicator ::: one of e E SignedInteger ::: DecimalDigits + DecimalDigits - DecimalDigits HexIntegerLiteral ::: 0x HexDigit 0X HexDigit HexIntegerLiteral HexDigit HexDigit ::: one of 0 1 2 3 4 5 6 7 8 9 a b c d e f A B C D E F
Reading quickly through the source it seems that you're not far off. The following link should help (I did something similar but for FTP). For a file send from server to client, you start off with a file instance and an array of bytes. You then read the File into the byte array and write the byte array to the OutputStream which corresponds with the InputStream on the client's side.
http://www.rgagnon.com/javadetails/java-0542.html
Edit: Here's a working ultra-minimalistic file sender and receiver. Make sure you understand what the code is doing on both sides.
package filesendtest;
import java.io.*;
import java.net.*;
class TCPServer {
private final static String fileToSend = "C:\\test1.pdf";
public static void main(String args[]) {
while (true) {
ServerSocket welcomeSocket = null;
Socket connectionSocket = null;
BufferedOutputStream outToClient = null;
try {
welcomeSocket = new ServerSocket(3248);
connectionSocket = welcomeSocket.accept();
outToClient = new BufferedOutputStream(connectionSocket.getOutputStream());
} catch (IOException ex) {
// Do exception handling
}
if (outToClient != null) {
File myFile = new File( fileToSend );
byte[] mybytearray = new byte[(int) myFile.length()];
FileInputStream fis = null;
try {
fis = new FileInputStream(myFile);
} catch (FileNotFoundException ex) {
// Do exception handling
}
BufferedInputStream bis = new BufferedInputStream(fis);
try {
bis.read(mybytearray, 0, mybytearray.length);
outToClient.write(mybytearray, 0, mybytearray.length);
outToClient.flush();
outToClient.close();
connectionSocket.close();
// File sent, exit the main method
return;
} catch (IOException ex) {
// Do exception handling
}
}
}
}
}
package filesendtest;
import java.io.*;
import java.io.ByteArrayOutputStream;
import java.net.*;
class TCPClient {
private final static String serverIP = "127.0.0.1";
private final static int serverPort = 3248;
private final static String fileOutput = "C:\\testout.pdf";
public static void main(String args[]) {
byte[] aByte = new byte[1];
int bytesRead;
Socket clientSocket = null;
InputStream is = null;
try {
clientSocket = new Socket( serverIP , serverPort );
is = clientSocket.getInputStream();
} catch (IOException ex) {
// Do exception handling
}
ByteArrayOutputStream baos = new ByteArrayOutputStream();
if (is != null) {
FileOutputStream fos = null;
BufferedOutputStream bos = null;
try {
fos = new FileOutputStream( fileOutput );
bos = new BufferedOutputStream(fos);
bytesRead = is.read(aByte, 0, aByte.length);
do {
baos.write(aByte);
bytesRead = is.read(aByte);
} while (bytesRead != -1);
bos.write(baos.toByteArray());
bos.flush();
bos.close();
clientSocket.close();
} catch (IOException ex) {
// Do exception handling
}
}
}
}
Related
Byte array of unknown length in java
Edit: The following could be used to fingerprint small files before and after transfer (use SHA if you feel it's necessary):
public static String md5String(File file) {
try {
InputStream fin = new FileInputStream(file);
java.security.MessageDigest md5er = MessageDigest.getInstance("MD5");
byte[] buffer = new byte[1024];
int read;
do {
read = fin.read(buffer);
if (read > 0) {
md5er.update(buffer, 0, read);
}
} while (read != -1);
fin.close();
byte[] digest = md5er.digest();
if (digest == null) {
return null;
}
String strDigest = "0x";
for (int i = 0; i < digest.length; i++) {
strDigest += Integer.toString((digest[i] & 0xff)
+ 0x100, 16).substring(1).toUpperCase();
}
return strDigest;
} catch (Exception e) {
return null;
}
}
For Mojave
Uninstall Any old version of Command Line Tools:
sudo rm -rf /Library/Developer/CommandLineTools
Download and Install Command Line Tools 10.14 Mojave.
Remove padding between cells inside the table. Just use cellpadding=0
and cellspacing=0
attributes in table tag.
Another one-liner that is not too complicated:
private int countNumberOfPages(int numberOfObjects, int pageSize) {
return numberOfObjects / pageSize + (numberOfObjects % pageSize == 0 ? 0 : 1);
}
Could use long instead of int; just change the parameter types and return type.
You can use jackson api for the conversion
<dependency>
<groupId>com.fasterxml.jackson.core</groupId>
<artifactId>jackson-databind</artifactId>
<version>2.9.4</version>
</dependency>
add above maven dependency in your POM, In your main method create ObjectMapper
ObjectMapper mapper = new ObjectMapper();
mapper.enable(SerializationFeature.INDENT_OUTPUT);
later we nee to add our POJO class to the mapper
String json = mapper.writeValueAsString(pojo);
Is this what you're looking for? You place you CSS between style
tags in the HTML document header. I'm guessing for iPhone it's webkit so it should work.
<html>
<head>
<style type="text/css">
.title { color: blue; text-decoration: bold; text-size: 1em; }
.author { color: gray; }
</style>
</head>
<body>
<p>
<span class="title">La super bonne</span>
<span class="author">proposée par Jérém</span>
</p>
</body>
</html>
var_export will give you a nice output. Examples from the docs:
$a = array (1, 2, array ("a", "b", "c"));
echo '<pre>' . var_export($a, true) . '</pre>';
Will output:
array (
0 => 1,
1 => 2,
2 =>
array (
0 => 'a',
1 => 'b',
2 => 'c',
),
)
You can improve that code
private void Form1_Load(object sender, EventArgs e)
{
/*
D:\root\Project1\A\A.pdf
D:\root\Project1\B\t.pdf
D:\root\Project2\c.pdf
*/
List<string> n = new List<string>();
List<string> kn = new List<string>();
n = Directory.GetFiles(@"D:\root\", "*.*", SearchOption.AllDirectories).ToList();
kn = Directory.GetDirectories(@"D:\root\", "*.*", SearchOption.AllDirectories).ToList();
foreach (var item in kn)
{
treeView1.Nodes.Add(item.ToString());
}
for (int i = 0; i < treeView1.Nodes.Count; i++)
{
n = Directory.GetFiles(treeView1.Nodes[i].Text, "*.*", SearchOption.AllDirectories).ToList();
for (int zik = 0; zik < n.Count; zik++)
{
treeView1.Nodes[i].Nodes.Add(n[zik].ToString());
}
}
}
I had the same problem - I was fetching a page from my own site, which was served over HTTPS, but curl was giving the same "SSL certificate problem" message. I worked around it by adding a -k
flag to the call to allow insecure connections.
curl -k https://whatever.com/script.php
Edit: I discovered the root of the problem. I was using an SSL certificate (from StartSSL, but I don't think that matters much) and hadn't set up the intermediate certificate properly. If you're having the same problem as user1270392 above, it's probably a good idea to test your SSL cert and fix any issues with it before resorting to the curl -k
fix.
you don't need to have two classes
class Tree:
val = None
left = None
right = None
def __init__(self, val):
self.val = val
def insert(self, val):
if self.val is not None:
if val < self.val:
if self.left is not None:
self.left.insert(val)
else:
self.left = Tree(val)
elif val > self.val:
if self.right is not None:
self.right.insert(val)
else:
self.right = Tree(val)
else:
return
else:
self.val = val
print("new node added")
def showTree(self):
if self.left is not None:
self.left.showTree()
print(self.val, end = ' ')
if self.right is not None:
self.right.showTree()
Check out this Sample Camera Preview code, CameraPreview
. This would help you in devloping video recording code for video preview, create MediaRecorder
object, and set video recording parameters.
Update: Current Spring cache implementation uses all method parameters as the cache key if not specified otherwise. If you want to use selected keys, refer to Arjan's answer which uses SpEL list {#isbn, #includeUsed}
which is the simplest way to create unique keys.
From Spring Documentation
The default key generation strategy changed with the release of Spring 4.0. Earlier versions of Spring used a key generation strategy that, for multiple key parameters, only considered the hashCode() of parameters and not equals(); this could cause unexpected key collisions (see SPR-10237 for background). The new 'SimpleKeyGenerator' uses a compound key for such scenarios.
Before Spring 4.0
I suggest you to concat the values of the parameters in Spel expression with something like key="#checkWarehouse.toString() + #isbn.toString()")
, I believe this should work as org.springframework.cache.interceptor.ExpressionEvaluator returns Object, which is later used as the key so you don't have to provide an int
in your SPEL expression.
As for the hash code with a high collision probability - you can't use it as the key.
Someone in this thread has suggested to use T(java.util.Objects).hash(#p0,#p1, #p2)
but it WILL NOT WORK and this approach is easy to break, for example I've used the data from SPR-9377 :
System.out.println( Objects.hash("someisbn", new Integer(109), new Integer(434)));
System.out.println( Objects.hash("someisbn", new Integer(110), new Integer(403)));
Both lines print -636517714 on my environment.
P.S. Actually in the reference documentation we have
@Cacheable(value="books", key="T(someType).hash(#isbn)")
public Book findBook(ISBN isbn, boolean checkWarehouse, boolean includeUsed)
I think that this example is WRONG and misleading and should be removed from the documentation, as the keys should be unique.
P.P.S. also see https://jira.springsource.org/browse/SPR-9036 for some interesting ideas regarding the default key generation.
I'd like to add for the sake of correctness and as an entertaining mathematical/computer science fact that unlike built-in hash, using a secure cryptographic hash function like MD5 or SHA256, due to the properties of such function IS absolutely possible for this task, but to compute it every time may be too expensive, checkout for example Dan Boneh cryptography course to learn more.
Was having a very similar issue to this while using a CMS but it was not resolving with the above solution. What I did to solve it is put the following in the applicable css:
background-size: cover
and for placement purposes in case you are using bootstrap, I used:
background-position: center center /* or whatever position you wanted */
Updating the accepted answer (can't comment yet). As of 1/12/16 using the demo jsfiddle in chrome, switch-immediate is the fastest solution.
Results: Time resolution: 1.33
25ms "if-immediate" 150878146
29ms "if-indirect" 150878146
24ms "switch-immediate" 150878146
128ms "switch-range" 150878146
45ms "switch-range2" 150878146
47ms "switch-indirect-array" 150878146
43ms "array-linear-switch" 150878146
72ms "array-binary-switch" 150878146
Finished
1.04 ( 25ms) if-immediate
1.21 ( 29ms) if-indirect
1.00 ( 24ms) switch-immediate
5.33 ( 128ms) switch-range
1.88 ( 45ms) switch-range2
1.96 ( 47ms) switch-indirect-array
1.79 ( 43ms) array-linear-switch
3.00 ( 72ms) array-binary-switch
use the ternary operator ?:
change this
<?php if ($requestVars->_name == '') echo $redText; ?>
with
<?php echo ($requestVars->_name == '') ? $redText : ''; ?>
In short
// (Condition)?(thing's to do if condition true):(thing's to do if condition false);
$<input name="currency">
See also: Restricting input to textbox: allowing only numbers and decimal point
"Core Java" is Oracle's definition and refers to subset of Java SE technologies.
This actually is not related to Java language itself but rather to set of some 'basic' packages. As a result it affects development approaches.
Currently Java Core is defined as a following set:
But as you probably understand even term 'basic technologies' is somewhat unclear ;-) so this is not so strict definition. Here is official page for this term:
Here is another picture illustrating Java Core API / technologies inside Java SE platform.
Here is one solution using java 8:
Stream.of(list1, list2)
.flatMap(Collection::stream)
.distinct()
// .sorted() uncomment if you want sorted list
.collect(Collectors.toList());
Now Gapps provide way to install gapps package thorough apk.
Download APK and installation instruction from below link:
You can download current APK from below link:
Play store link: https://play.google.com/store/apps/details?id=org.opengapps.app
Current version Website Link (7/22/2017): http://opengapps.org/app/opengapps-app-v16.apk
Neither of the answers here helped me. The problem was: I was using the slim build of jQuery, which had some things removed, ajax being one of them.
The solution: Just download the regular (compressed or not) version of jQuery here and include it in your project.
I've been working on something similar and after a few tries and fails came up with this:
Example: STRING-TO-TEST-ON = 'ab,cd,ef,gh'
I wanted to extract everything after the last occurrence of "," (comma) from the string... resulting in "gh".
My query is:
SELECT SUBSTR('ab,cd,ef,gh' FROM (LENGTH('ab,cd,ef,gh') - (LOCATE(",",REVERSE('ab,cd,ef,gh'))-1)+1)) AS `wantedString`
Now let me try and explain what I did ...
I had to find the position of the last "," from the string and to calculate the wantedString length, using LOCATE(",",REVERSE('ab,cd,ef,gh'))-1
by reversing the initial string I actually had to find the first occurrence of the "," in the string ... which wasn't hard to do ... and then -1 to actually find the string length without the ",".
calculate the position of my wantedString by subtracting the string length I've calculated at 1st step from the initial string length:
LENGTH('ab,cd,ef,gh') - (LOCATE(",",REVERSE('ab,cd,ef,gh'))-1)+1
I have (+1) because I actually need the string position after the last "," .. and not containing the ",". Hope it makes sense.
I haven't tested the query on large strings so I do not know how slow it is. So if someone actually tests it on a large string I would very happy to know the results.
I was trying to compare A-B columns and highlight equal text, but usinng the obove fomrulas some text did not match at all. So I used form (VBA macro to compare two columns and color highlight cell differences) codes and I modified few things to adapt it to my application and find any desired column (just by clicking it). In my case, I use large and different numbers of rows on each column. Hope this helps:
Sub ABTextCompare()
Dim Report As Worksheet
Dim i, j, colNum, vMatch As Integer
Dim lastRowA, lastRowB, lastRow, lastColumn As Integer
Dim ColumnUsage As String
Dim colA, colB, colC As String
Dim A, B, C As Variant
Set Report = Excel.ActiveSheet
vMatch = 1
'Select A and B Columns to compare
On Error Resume Next
Set A = Application.InputBox(Prompt:="Select column to compare", Title:="Column A", Type:=8)
If A Is Nothing Then Exit Sub
colA = Split(A(1).Address(1, 0), "$")(0)
Set B = Application.InputBox(Prompt:="Select column being searched", Title:="Column B", Type:=8)
If A Is Nothing Then Exit Sub
colB = Split(B(1).Address(1, 0), "$")(0)
'Select Column to show results
Set C = Application.InputBox("Select column to show results", "Results", Type:=8)
If C Is Nothing Then Exit Sub
colC = Split(C(1).Address(1, 0), "$")(0)
'Get Last Row
lastRowA = Report.Cells.Find("", Range(colA & 1), xlFormulas, xlByRows, xlPrevious).Row - 1 ' Last row in column A
lastRowB = Report.Cells.Find("", Range(colB & 1), xlFormulas, xlByRows, xlPrevious).Row - 1 ' Last row in column B
Application.ScreenUpdating = False
'***************************************************
For i = 2 To lastRowA
For j = 2 To lastRowB
If Report.Cells(i, A.Column).Value <> "" Then
If InStr(1, Report.Cells(j, B.Column).Value, Report.Cells(i, A.Column).Value, vbTextCompare) > 0 Then
vMatch = vMatch + 1
Report.Cells(i, A.Column).Interior.ColorIndex = 35 'Light green background
Range(colC & 1).Value = "Items Found"
Report.Cells(i, A.Column).Copy Destination:=Range(colC & vMatch)
Exit For
Else
'Do Nothing
End If
End If
Next j
Next i
If vMatch = 1 Then
MsgBox Prompt:="No Itmes Found", Buttons:=vbInformation
End If
'***************************************************
Application.ScreenUpdating = True
End Sub
I think you should avoid writing side-effecting method. Return true or false from your method and you can check these methods in unit tests.
I too found this perplexing. I'm running Ubuntu 18 and found the following: If the cv.imshow window has focus, you'll get one set of values in the terminal - like the ASCII values discussed above.
If the Terminal has focus, you'll see different values. IE- you'll see "a" when you press the a key (instead of ASCII value 97) and "^]" instead of "27" when you press Escape.
I didn't see the 6 digit numbers mentioned above in either case and I used similar code. It seems the value for waitKey is the polling period in mS. The dots illustrate this.
Run this snippet and press keys while focus is on the test image, then click on the terminal window and press the same keys.
import cv2
img = cv2.imread('test.jpg')
cv2.imshow('Your test image', img)
while(1):
k = cv2.waitKey(300)
if k == 27:
break
elif k==-1:
print "."
continue
else:
print k
try to implement Application_AuthenticateRequest
instead of Application_Start
.
this method has an instance for HttpContext.Current
, unlike Application_Start
(which fires very soon in app lifecycle, soon enough to not hold a HttpContext.Current
object yet).
hope that helps.
I got this error multiple times and struggled to work out. Finally, I removed the run configuration and re-added the default entries. It worked beautifully.
I think there is MID() and maybe LEFT() and RIGHT() in Access.
Both replace()
and replaceAll()
replace all occurrences in the String.
I always find examples helpful to understand the differences.
replace()
Use replace()
if you just want to replace some char
with another char
or some String
with another String
(actually CharSequence
).
Example 1
Replace all occurrences of the character x
with o
.
String myString = "__x___x___x_x____xx_";
char oldChar = 'x';
char newChar = 'o';
String newString = myString.replace(oldChar, newChar);
// __o___o___o_o____oo_
Example 2
Replace all occurrences of the string fish
with sheep
.
String myString = "one fish, two fish, three fish";
String target = "fish";
String replacement = "sheep";
String newString = myString.replace(target, replacement);
// one sheep, two sheep, three sheep
replaceAll()
Use replaceAll()
if you want to use a regular expression pattern.
Example 3
Replace any number with an x
.
String myString = "__1_6____3__6_345____0";
String regex = "\\d";
String replacement = "x";
String newString = myString.replaceAll(regex, replacement);
// __x_x____x__x_xxx____x
Example 4
Remove all whitespace.
String myString = " Horse Cow\n\n \r Camel \t\t Sheep \n Goat ";
String regex = "\\s";
String replacement = "";
String newString = myString.replaceAll(regex, replacement);
// HorseCowCamelSheepGoat
Documentation
replace(char oldChar, char newChar)
replace(CharSequence target, CharSequence replacement)
replaceAll(String regex, String replacement)
replaceFirst(String regex, String replacement)
Regular Expressions
Use:
$('#example').dataTable({
aLengthMenu: [
[25, 50, 100, 200, -1],
[25, 50, 100, 200, "All"]
],
iDisplayLength: -1
});
Or if using 1.10+
$('#example').dataTable({
paging: false
});
The option you should use is iDisplayLength:
$('#adminProducts').dataTable({
'iDisplayLength': 100
});
$('#table').DataTable({
"lengthMenu": [ [5, 10, 25, 50, -1], [5, 10, 25, 50, "All"] ]
});
It will Load by default all entries.
$('#example').dataTable({
aLengthMenu: [
[25, 50, 100, 200, -1],
[25, 50, 100, 200, "All"]
],
iDisplayLength: -1
});
Or if using 1.10+
$('#example').dataTable({
paging: false
});
If you want to load by default 25 not all do this.
$('#example').dataTable({
aLengthMenu: [
[25, 50, 100, 200, -1],
[25, 50, 100, 200, "All"]
],
});
I know that this is a pretty old question but I've just met same issue. I don't know exactly why but it seems that tableFooterView can be only an instance of UIView (not "kind of" but "is member")... So in my case I've created new UIView object (for example wrapperView) and add my custom subview to it... In your case, chamge your code from:
CGRect footerRect = CGRectMake(0, 0, 320, 40);
UILabel *tableFooter = [[UILabel alloc] initWithFrame:footerRect];
tableFooter.textColor = [UIColor blueColor];
tableFooter.backgroundColor = [self.theTable backgroundColor];
tableFooter.opaque = YES;
tableFooter.font = [UIFont boldSystemFontOfSize:15];
tableFooter.text = @"test";
self.theTable.tableFooterView = tableFooter;
[tableFooter release];
to:
CGRect footerRect = CGRectMake(0, 0, 320, 40);
UIView *wrapperView = [[UIView alloc] initWithFrame:footerRect];
UILabel *tableFooter = [[UILabel alloc] initWithFrame:footerRect];
tableFooter.textColor = [UIColor blueColor];
tableFooter.backgroundColor = [self.theTable backgroundColor];
tableFooter.opaque = YES;
tableFooter.font = [UIFont boldSystemFontOfSize:15];
tableFooter.text = @"test";
[wrapperView addSubview:tableFooter];
self.theTable.tableFooterView = wrapperView;
[wrapperView release];
[tableFooter release];
Hope it helps. It works for me.
From terminal, find all eclipse directories with
sudo find / -iname "Eclipse"
Delete those directories with rm
command.
We had this requirement on getting the delta between two json updates for tracking database updates. Maybe someone else can find this helpful.
https://gist.github.com/jp6rt/7fcb6907e159d7851c8d59840b669e3d
const {
isObject,
isEqual,
transform,
has,
merge,
} = require('lodash');
const assert = require('assert');
/**
* Perform a symmetric comparison on JSON object.
* @param {*} baseObj - The base object to be used for comparison against the withObj.
* @param {*} withObj - The withObject parameter is used as the comparison on the base object.
* @param {*} invert - Because this is a symmetric comparison. Some values in the with object
* that doesn't exist on the base will be lost in translation.
* You can execute again the function again with the parameters interchanged.
* However you will lose the reference if the value is from the base or with
* object if you intended to do an assymetric comparison.
* Setting this to true will do make sure the reference is not lost.
* @returns - The returned object will label the result of the comparison with the
* value from base and with object.
*/
const diffSym = (baseObj, withObj, invert = false) => transform(baseObj, (result, value, key) => {
if (isEqual(value, withObj[key])
&& has(withObj, key)) {
return;
}
if (isObject(value)
&& isObject(withObj[key])
&& !Array.isArray(value)) {
result[key] = diffSym(value, withObj[key], invert);
return;
}
if (!invert) {
result[key] = {
base: value,
with: withObj[key],
};
return;
}
if (invert) {
result[key] = {
base: withObj[key],
with: value,
};
}
});
/**
* Perform a assymmetric comparison on JSON object.
* @param {*} baseObj - The base object to be used for comparison against the withObj.
* @param {*} withObj - The withObject parameter is used as the comparison on the base object.
* @returns - The returned object will label the values with
* reference to the base and with object.
*/
const diffJSON = (baseObj, withObj) => {
// Deep clone the objects so we don't update the reference objects.
const baseObjClone = JSON.parse(JSON.stringify(baseObj));
const withObjClone = JSON.parse(JSON.stringify(withObj));
const beforeDelta = diffSym(baseObjClone, withObjClone);
const afterDelta = diffSym(withObjClone, baseObjClone, true);
return merge(afterDelta, beforeDelta);
};
// By Example:
const beforeDataObj = {
a: 1,
c: { d: 2, f: 3 },
g: 4,
h: 5,
};
const afterDataObj = {
a: 2,
b: 3,
c: { d: 1, e: 1 },
h: 5,
};
const delta = diffJSON(beforeDataObj, afterDataObj);
// Assert expected result.
assert(isEqual(delta, {
a: { base: 1, with: 2 },
b: { base: undefined, with: 3 },
c: {
d: { base: 2, with: 1 },
e: { base: undefined, with: 1 },
f: { base: 3, with: undefined },
},
g: { base: 4, with: undefined },
}));
You have three options:
@Transient
method@PostLoad
entity listener@Formula
annotationWhile Hibernate allows you to use @Formula, with JPA, you can use the @PostLoad callback to populate a transient property with the result of some calculation:
@Column(name = "price")
private Double price;
@Column(name = "tax_percentage")
private Double taxes;
@Transient
private Double priceWithTaxes;
@PostLoad
private void onLoad() {
this.priceWithTaxes = price * taxes;
}
So, you can use the Hibernate @Formula
like this:
@Formula("""
round(
(interestRate::numeric / 100) *
cents *
date_part('month', age(now(), createdOn)
)
/ 12)
/ 100::numeric
""")
private double interestDollars;
All of these answers fail if you have a number in the millions.
3,456,789 would simply return 3456 with the replace method.
The most correct answer for simply removing the commas would have to be.
var number = '3,456,789.12';
number.split(',').join('');
/* number now equips 3456789.12 */
parseFloat(number);
Or simply written.
number = parseFloat(number.split(',').join(''));
I do this kind of thing all the time for quick-and-dirty scripts. It's quite common to have a CGI or PHP script that just uses system/popen to call some external program.
Just be extra careful if your web server is open to the internet at large. Be sure to sanitize your GET/POST input in this case so as to not allow attackers to run arbitrary commands on your machine.
You should be able to set the className property of the element. You could do a += to append it.
The popular answer google.maps.event.trigger(map, "resize");
didn't work for me alone.
Here was a trick that assured that the page had loaded and that the map had loaded as well. By setting a listener and listening for the idle state of the map you can then call the event trigger to resize.
$(document).ready(function() {
google.maps.event.addListener(map, "idle", function(){
google.maps.event.trigger(map, 'resize');
});
});
This was my answer that worked for me.
Node* insert_node_at_nth_pos(Node *head, int data, int position)
{
/* current node */
Node* cur = head;
/* initialize new node to be inserted at given position */
Node* nth = new Node;
nth->data = data;
nth->next = NULL;
if(position == 0){
/* insert new node at head */
head = nth;
head->next = cur;
return head;
}else{
/* traverse list */
int count = 0;
Node* pre = new Node;
while(count != position){
if(count == (position - 1)){
pre = cur;
}
cur = cur->next;
count++;
}
/* insert new node here */
pre->next = nth;
nth->next = cur;
return head;
}
}
well, char *
means a pointer point to char, it is different from char array.
char amessage[] = "this is an array"; /* define an array*/
char *pmessage = "this is a pointer"; /* define a pointer*/
And, char **
means a pointer point to a char pointer.
You can look some books about details about pointer and array.
In my case, I was dealing with a file that was generated by hadoop on a linux box. When I tried to import to sql I had this issue. The fix wound up being to use the hex value for 'line feed' 0x0a. It also worked for bulk insert
bulk insert table from 'file'
WITH (FIELDTERMINATOR = ',', ROWTERMINATOR = '0x0a')
There is nothing wrong with the idea of modifying an element inside a list while traversing it (don't modify the list itself, that's not recommended), but it can be better expressed like this:
for (int i = 0; i < letters.size(); i++) {
letters.set(i, "D");
}
At the end the whole list will have the letter "D"
as its content. It's not a good idea to use an enhanced for
loop in this case, you're not using the iteration variable for anything, and besides you can't modify the list's contents using the iteration variable.
Notice that the above snippet is not modifying the list's structure - meaning: no elements are added or removed and the lists' size remains constant. Simply replacing one element by another doesn't count as a structural modification. Here's the link to the documentation quoted by @ZouZou in the comments, it states that:
A structural modification is any operation that adds or deletes one or more elements, or explicitly resizes the backing array; merely setting the value of an element is not a structural modification
for i=1,#target do
game.Players.target[i].Character:BreakJoints()
end
Is incorrect, if "target" contains "FakeNameHereSoNoStalkers" then the run code would be:
game.Players.target.1.Character:BreakJoints()
Which is completely incorrect.
c = game.Players:GetChildren()
Never use "Players:GetChildren()", it is not guaranteed to return only players.
Instead use:
c = Game.Players:GetPlayers()
if msg:lower()=="me" then
table.insert(people, source)
return people
Here you add the player's name in the list "people", where you in the other places adds the player object.
Fixed code:
local Admins = {"FakeNameHereSoNoStalkers"}
function Kill(Players)
for i,Player in ipairs(Players) do
if Player.Character then
Player.Character:BreakJoints()
end
end
end
function IsAdmin(Player)
for i,AdminName in ipairs(Admins) do
if Player.Name:lower() == AdminName:lower() then return true end
end
return false
end
function GetPlayers(Player,Msg)
local Targets = {}
local Players = Game.Players:GetPlayers()
if Msg:lower() == "me" then
Targets = { Player }
elseif Msg:lower() == "all" then
Targets = Players
elseif Msg:lower() == "others" then
for i,Plr in ipairs(Players) do
if Plr ~= Player then
table.insert(Targets,Plr)
end
end
else
for i,Plr in ipairs(Players) do
if Plr.Name:lower():sub(1,Msg:len()) == Msg then
table.insert(Targets,Plr)
end
end
end
return Targets
end
Game.Players.PlayerAdded:connect(function(Player)
if IsAdmin(Player) then
Player.Chatted:connect(function(Msg)
if Msg:lower():sub(1,6) == ":kill " then
Kill(GetPlayers(Player,Msg:sub(7)))
end
end)
end
end)
I ran into this problem today. Due to the timeframe and some other issues, getting the key from the provider was not possible.
I found the following solution here (under pixelloa's comment) and thought it would be good to have the answer on Stack Overflow as well.
If the certificate does not have a private key, you can fix this by doing the following:
To fix this, use the MMC snapin to import the cert into PERSONAL store of the computer account, click it and grab the serial # line. Go to dos, run
certutil -repairstore my "paste the serial # in here"
(you need the quotes unless you remove the spaces from the serial number) then refresh MMC with personal certs, right click it - export - select everything except DELETE PRIVATE KEY, hit ok. Then go to IIS and IMPORT cert instead of finish request.
For what it's worth, all I actually had to do was run the certutil -repairstore
command, and my certificate worked. I did run the export and set a password for the export itself, but I did not have to reimport the certificate. The certificate now shows up in IIS's list of certificates and can be used for HTTPS bindings.
I hope this helped someone.