why dont you try something very simple?
use psexec with command 'shutdown /r /f /t 0' and a PC list from CMD.
On your machine* run 'Set-Item WSMan:\localhost\Client\TrustedHosts -Value "$ipaddress"
*Machine from where you are running PSSession
Had similar problems recently. Would suggest you carefully check if the user you're connecting with has proper authorizations on the remote machine.
You can review permissions using the following command.
Set-PSSessionConfiguration -ShowSecurityDescriptorUI -Name Microsoft.PowerShell
Found this tip here (updated link, thanks "unbob"):
https://devblogs.microsoft.com/scripting/configure-remote-security-settings-for-windows-powershell/
It fixed it for me.
If it's not important to use a RelativeLayout, you could use a LinearLayout, and do this:
LinearLayout linearLayout = new LinearLayout(this);
linearLayout.setOrientation(LinearLayout.VERTICAL);
Doing this allows you to avoid the addRule method you've tried. You can simply use addView() to add new TextViews.
Complete code:
String[] textArray = {"One", "Two", "Three", "Four"};
LinearLayout linearLayout = new LinearLayout(this);
setContentView(linearLayout);
linearLayout.setOrientation(LinearLayout.VERTICAL);
for( int i = 0; i < textArray.length; i++ )
{
TextView textView = new TextView(this);
textView.setText(textArray[i]);
linearLayout.addView(textView);
}
In file /etc/ssh/sshd_config
# Change to no to disable tunnelled clear text passwords
#PasswordAuthentication no
Uncomment the second line, and, if needed, change yes to no.
Then run
service ssh restart
switch to the boto-*
directory and type python setup.py install
.
ag
(the silver searcher) has pretty simple syntax for this
-G --file-search-regex PATTERN
Only search files whose names match PATTERN.
so
ag -G *.h -G *.cpp CP_Image <path>
// GET JSON Response
public WeatherResponseModel GET(string url) {
WeatherResponseModel model = new WeatherResponseModel();
HttpWebRequest request = (HttpWebRequest)WebRequest.Create(url);
try {
WebResponse response = request.GetResponse();
using(Stream responseStream = response.GetResponseStream()) {
StreamReader reader = new StreamReader(responseStream, Encoding.UTF8);
model = JsonConvert.DeserializeObject < WeatherResponseModel > (reader.ReadToEnd());
}
} catch (WebException ex) {
WebResponse errorResponse = ex.Response;
using(Stream responseStream = errorResponse.GetResponseStream()) {
StreamReader reader = new StreamReader(responseStream, Encoding.GetEncoding("utf-8"));
String errorText = reader.ReadToEnd();
// Log errorText
}
throw;
}
return model;
}
// POST a JSON string
void POST(string url, string jsonContent) {
HttpWebRequest request = (HttpWebRequest)WebRequest.Create(url);
request.Method = "POST";
System.Text.UTF8Encoding encoding = new System.Text.UTF8Encoding();
Byte[]byteArray = encoding.GetBytes(jsonContent);
request.ContentLength = byteArray.Length;
request.ContentType = @ "application/json";
using(Stream dataStream = request.GetRequestStream()) {
dataStream.Write(byteArray, 0, byteArray.Length);
}
long length = 0;
try {
using(HttpWebResponse response = (HttpWebResponse)request.GetResponse()) {
// Got response
length = response.ContentLength;
}
} catch (WebException ex) {
WebResponse errorResponse = ex.Response;
using(Stream responseStream = errorResponse.GetResponseStream()) {
StreamReader reader = new StreamReader(responseStream, Encoding.GetEncoding("utf-8"));
String errorText = reader.ReadToEnd();
// Log errorText
}
throw;
}
}
Note: To serialize and desirialze JSON, I used the Newtonsoft.Json NuGet package.
Create a drawable resource what background you need, in my case I named it bg_custom_progressbar.xml
<?xml version="1.0" encoding="utf-8"?>
<item>
<shape android:shape="rectangle" >
<corners android:radius="5dp"/>
<gradient
android:angle="180"
android:endColor="#DADFD6"
android:startColor="#AEB9A3" />
</shape>
</item>
<item>
<clip>
<shape android:shape="rectangle" >
<corners android:radius="5dp" />
<gradient
android:angle="180"
android:endColor="#44CF4A"
android:startColor="#2BB930" />
</shape>
</clip>
</item>
<item>
<clip>
<shape android:shape="rectangle" >
<corners android:radius="5dp" />
<gradient
android:angle="180"
android:endColor="#44CF4A"
android:startColor="#2BB930" />
</shape>
</clip>
</item>
Then use this custom background like
<ProgressBar
android:id="@+id/progressBarBarMenuHome"
style="?android:attr/progressBarStyleHorizontal"
android:layout_width="match_parent"
android:layout_height="20dp"
android:layout_marginStart="10dp"
android:layout_marginEnd="10dp"
android:layout_marginBottom="6dp"
android:indeterminate="false"
android:max="100"
android:minWidth="200dp"
android:minHeight="50dp"
android:progress="10"
android:progressDrawable="@drawable/bg_custom_progressbar" />
Its works fine for me
If you can create a numbers table, that contains numbers from 1 to the maximum fields to split, you could use a solution like this:
select
tablename.id,
SUBSTRING_INDEX(SUBSTRING_INDEX(tablename.name, ',', numbers.n), ',', -1) name
from
numbers inner join tablename
on CHAR_LENGTH(tablename.name)
-CHAR_LENGTH(REPLACE(tablename.name, ',', ''))>=numbers.n-1
order by
id, n
Please see fiddle here.
If you cannot create a table, then a solution can be this:
select
tablename.id,
SUBSTRING_INDEX(SUBSTRING_INDEX(tablename.name, ',', numbers.n), ',', -1) name
from
(select 1 n union all
select 2 union all select 3 union all
select 4 union all select 5) numbers INNER JOIN tablename
on CHAR_LENGTH(tablename.name)
-CHAR_LENGTH(REPLACE(tablename.name, ',', ''))>=numbers.n-1
order by
id, n
an example fiddle is here.
To make it all inline (non-recursive):
{str(k):(str(v) if isinstance(v, unicode) else v) for k,v in my_dict.items()}
Here is my full post with topic: PHP find difference between two datetimes
USAGE EXAMPLE
echo timeDifference('2016-05-27 02:00:00', 'Y-m-d H:i:s', '2017-08-30 00:01:59', 'Y-m-d H:i:s', false, '%a days %h hours');
#459 days 22 hours (string)
echo timeDifference('2016-05-27 02:00:00', 'Y-m-d H:i:s', '2016-05-27 07:00:00', 'Y-m-d H:i:s', true, 'hours',true);
#-5 (int)
I have written code that sniffs IE4 or greater and is currently functioning perfectly in sites for my company's clients, as well as my own personal sites.
Include the following enumerated constant and function variables into a javascript include file on your page...
//methods
var BrowserTypes = {
Unknown: 0,
FireFox: 1,
Chrome: 2,
Safari: 3,
IE: 4,
IE7: 5,
IE8: 6,
IE9: 7,
IE10: 8,
IE11: 8,
IE12: 8
};
var Browser = function () {
try {
//declares
var type;
var version;
var sVersion;
//process
switch (navigator.appName.toLowerCase()) {
case "microsoft internet explorer":
type = BrowserTypes.IE;
sVersion = navigator.appVersion.substring(navigator.appVersion.indexOf('MSIE') + 5, navigator.appVersion.length);
version = parseFloat(sVersion.split(";")[0]);
switch (parseInt(version)) {
case 7:
type = BrowserTypes.IE7;
break;
case 8:
type = BrowserTypes.IE8;
break;
case 9:
type = BrowserTypes.IE9;
break;
case 10:
type = BrowserTypes.IE10;
break;
case 11:
type = BrowserTypes.IE11;
break;
case 12:
type = BrowserTypes.IE12;
break;
}
break;
case "netscape":
if (navigator.userAgent.toLowerCase().indexOf("chrome") > -1) { type = BrowserTypes.Chrome; }
else { if (navigator.userAgent.toLowerCase().indexOf("firefox") > -1) { type = BrowserTypes.FireFox } };
break;
default:
type = BrowserTypes.Unknown;
break;
}
//returns
return type;
} catch (ex) {
}
};
Then all you have to do is use any conditional functionality such as...
ie. value = (Browser() >= BrowserTypes.IE) ? node.text : node.textContent;
or WindowWidth = (((Browser() >= BrowserTypes.IE9) || (Browser() < BrowserTypes.IE)) ? window.innerWidth : document.documentElement.clientWidth);
or sJSON = (Browser() >= BrowserTypes.IE) ? xmlElement.text : xmlElement.textContent;
Get the idea? Hope this helps.
Oh, you might want to keep it in mind to QA the Browser() function after IE10 is released, just to verify they didn't change the rules.
You have to wrap \n
or \r
in ""
, not ''
. When using single quotes escape sequences will not be interpreted (except \'
and \\
).
If the string is enclosed in double-quotes ("), PHP will interpret more escape sequences for special characters:
\n linefeed (LF or 0x0A (10) in ASCII)
\r carriage return (CR or 0x0D (13) in ASCII)\
(...)
Using Android default libraries like AppCompat, you can convert all the PDF pages into images. This way is very fast and optimized. The below code is for getting separate images of a PDF page. It is very fast and quick.
ParcelFileDescriptor fileDescriptor = ParcelFileDescriptor.open(new File("pdfFilePath.pdf"), MODE_READ_ONLY);
PdfRenderer renderer = new PdfRenderer(fileDescriptor);
final int pageCount = renderer.getPageCount();
for (int i = 0; i < pageCount; i++) {
PdfRenderer.Page page = renderer.openPage(i);
Bitmap bitmap = Bitmap.createBitmap(page.getWidth(), page.getHeight(),Bitmap.Config.ARGB_8888);
Canvas canvas = new Canvas(bitmap);
canvas.drawColor(Color.WHITE);
canvas.drawBitmap(bitmap, 0, 0, null);
page.render(bitmap, null, null, PdfRenderer.Page.RENDER_MODE_FOR_DISPLAY);
page.close();
if (bitmap == null)
return null;
if (bitmapIsBlankOrWhite(bitmap))
return null;
String root = Environment.getExternalStorageDirectory().toString();
File file = new File(root + filename + ".png");
if (file.exists()) file.delete();
try {
FileOutputStream out = new FileOutputStream(file);
bitmap.compress(Bitmap.CompressFormat.PNG, 100, out);
Log.v("Saved Image - ", file.getAbsolutePath());
out.flush();
out.close();
} catch (Exception e) {
e.printStackTrace();
}
}
=======================================================
private static boolean bitmapIsBlankOrWhite(Bitmap bitmap) {
if (bitmap == null)
return true;
int w = bitmap.getWidth();
int h = bitmap.getHeight();
for (int i = 0; i < w; i++) {
for (int j = 0; j < h; j++) {
int pixel = bitmap.getPixel(i, j);
if (pixel != Color.WHITE) {
return false;
}
}
}
return true;
}
my_styles.xml
and save it in res/values
.Add the following code:
<?xml version="1.0" encoding="utf-8"?>
<resources>
<style name="ListFont" parent="@android:style/Widget.ListView">
<item name="android:textColor">#FF0000</item>
<item name="android:typeface">sans</item>
</style>
</resources>
Add your style to your Activity
definition in your AndroidManifest.xml
as an android:theme
attribute, and assign as value the name of the style you created. For example:
<activity android:name="your.activityClass" android:theme="@style/ListFont">
I have another example, that I made for my process:
I get an Array with value-Description like this
states = [{
status: '1',
desc: '\u2713'
}, {
status: '2',
desc: '\u271B'
}]
in my Filters.js:
.filter('getState', function () {
return function (input, states) {
//console.log(states);
for (var i = 0; i < states.length; i++) {
//console.log(states[i]);
if (states[i].status == input) {
return states[i].desc;
}
}
return '\u2718';
};
})
Then, a test var (controller):
function myCtrl($scope, $filter) {
// ....
var resp = $filter('getState')('1', states);
// ....
}
This is due to IFS (Internal Field Separator) variable which contains newline.
$ cat xx1
1
2
$ A=`cat xx1`
$ echo $A
1 2
$ echo "|$IFS|"
|
|
A workaround is to reset IFS to not contain the newline, temporarily:
$ IFSBAK=$IFS
$ IFS=" "
$ A=`cat xx1` # Can use $() as well
$ echo $A
1
2
$ IFS=$IFSBAK
To REVERT this horrible change for IFS:
IFS=$IFSBAK
I ran into the same issue while trying to build a very old copy of omniORB on a CentOS 7 machine. Resolved the issue by installing the python development libraries:
# yum install python-devel
This installed the Python.h into:
/usr/include/python2.7/Python.h
You can use
hdfs fsck /
to determine which files are having problems. Look through the output for missing or corrupt blocks (ignore under-replicated blocks for now). This command is really verbose especially on a large HDFS filesystem so I normally get down to the meaningful output with
hdfs fsck / | egrep -v '^\.+$' | grep -v eplica
which ignores lines with nothing but dots and lines talking about replication.
Once you find a file that is corrupt
hdfs fsck /path/to/corrupt/file -locations -blocks -files
Use that output to determine where blocks might live. If the file is larger than your block size it might have multiple blocks.
You can use the reported block numbers to go around to the datanodes and the namenode logs searching for the machine or machines on which the blocks lived. Try looking for filesystem errors on those machines. Missing mount points, datanode not running, file system reformatted/reprovisioned. If you can find a problem in that way and bring the block back online that file will be healthy again.
Lather rinse and repeat until all files are healthy or you exhaust all alternatives looking for the blocks.
Once you determine what happened and you cannot recover any more blocks, just use the
hdfs fs -rm /path/to/file/with/permanently/missing/blocks
command to get your HDFS filesystem back to healthy so you can start tracking new errors as they occur.
In short, static methods and static variables are class level where as instance methods and instance variables are instance or object level.
This means whenever a instance or object (using new ClassName()) is created, this object will retain its own copy of instace variables. If you have five different objects of same class, you will have five different copies of the instance variables. But the static variables and methods will be the same for all those five objects. If you need something common to be used by each object created make it static. If you need a method which won't need object specific data to work, make it static. The static method will only work with static variable or will return data on the basis of passed arguments.
class A {
int a;
int b;
public void setParameters(int a, int b){
this.a = a;
this.b = b;
}
public int add(){
return this.a + this.b;
}
public static returnSum(int s1, int s2){
return (s1 + s2);
}
}
In the above example, when you call add() as:
A objA = new A();
objA.setParameters(1,2); //since it is instance method, call it using object
objA.add(); // returns 3
B objB = new B();
objB.setParameters(3,2);
objB.add(); // returns 5
//calling static method
// since it is a class level method, you can call it using class itself
A.returnSum(4,6); //returns 10
class B{
int s=8;
int t = 8;
public addition(int s,int t){
A.returnSum(s,t);//returns 16
}
}
In first class, add() will return the sum of data passed by a specific object. But the static method can be used to get the sum from any class not independent if any specific instance or object. Hence, for generic methods which only need arguments to work can be made static to keep it all DRY.
wget https://raw.github.com/flexiondotorg/oab-java6/master/oab-java.sh
chmod +x oab-java.sh
sudo ./oab-java.sh -7
sudo apt-get update
sudo sudo apt-get install oracle-java7-jdk oracle-java7-fonts oracle-java7-source
sudo apt-get dist-upgrade
There is an Issue 123 currently in OAB and a pull request
Here is the patched vesion:
wget https://raw.github.com/ladios/oab-java6/master/oab-java.sh
chmod +x oab-java.sh
sudo ./oab-java.sh -7
sudo apt-get update
sudo sudo apt-get install oracle-java7-jdk oracle-java7-fonts oracle-java7-source
sudo apt-get dist-upgrade
You can use strcpy
but remember to end the array with '\0'
char array[20]; char string[100];
array[0]='1'; array[1]='7'; array[2]='8'; array[3]='.'; array[4]='9'; array[5]='\0';
strcpy(string, array);
printf("%s\n", string);
Zero-size array passed to numpy.mean
raises this warning (as indicated in several comments).
For some other candidates:
median
also raises this warning on zero-sized array.other candidates do not raise this warning:
min,argmin
both raise ValueError
on empty arrayrandn
takes *arg
; using randn(*[])
returns a single random numberstd,var
return nan
on an empty arrayRun java
with CLASSPATH
environmental variable pointing to driver's JAR file, e.g.
CLASSPATH='.:drivers/mssql-jdbc-6.2.1.jre8.jar' java ConnectURL
Where drivers/mssql-jdbc-6.2.1.jre8.jar
is the path to driver file (e.g. JDBC for for SQL Server).
The ConnectURL
is the sample app from that driver (samples/connections/ConnectURL.java
), compiled via javac ConnectURL.java
.
I feel compelled to provide a counterpoint to Ashwini Chaudhary's answer. Despite appearances, the two-argument form of the round
function does not round a Python float to a given number of decimal places, and it's often not the solution you want, even when you think it is. Let me explain...
The ability to round a (Python) float to some number of decimal places is something that's frequently requested, but turns out to be rarely what's actually needed. The beguilingly simple answer round(x, number_of_places)
is something of an attractive nuisance: it looks as though it does what you want, but thanks to the fact that Python floats are stored internally in binary, it's doing something rather subtler. Consider the following example:
>>> round(52.15, 1)
52.1
With a naive understanding of what round
does, this looks wrong: surely it should be rounding up to 52.2
rather than down to 52.1
? To understand why such behaviours can't be relied upon, you need to appreciate that while this looks like a simple decimal-to-decimal operation, it's far from simple.
So here's what's really happening in the example above. (deep breath) We're displaying a decimal representation of the nearest binary floating-point number to the nearest n
-digits-after-the-point decimal number to a binary floating-point approximation of a numeric literal written in decimal. So to get from the original numeric literal to the displayed output, the underlying machinery has made four separate conversions between binary and decimal formats, two in each direction. Breaking it down (and with the usual disclaimers about assuming IEEE 754 binary64 format, round-ties-to-even rounding, and IEEE 754 rules):
First the numeric literal 52.15
gets parsed and converted to a Python float. The actual number stored is 7339460017730355 * 2**-47
, or 52.14999999999999857891452847979962825775146484375
.
Internally as the first step of the round
operation, Python computes the closest 1-digit-after-the-point decimal string to the stored number. Since that stored number is a touch under the original value of 52.15
, we end up rounding down and getting a string 52.1
. This explains why we're getting 52.1
as the final output instead of 52.2
.
Then in the second step of the round
operation, Python turns that string back into a float, getting the closest binary floating-point number to 52.1
, which is now 7332423143312589 * 2**-47
, or 52.10000000000000142108547152020037174224853515625
.
Finally, as part of Python's read-eval-print loop (REPL), the floating-point value is displayed (in decimal). That involves converting the binary value back to a decimal string, getting 52.1
as the final output.
In Python 2.7 and later, we have the pleasant situation that the two conversions in step 3 and 4 cancel each other out. That's due to Python's choice of repr
implementation, which produces the shortest decimal value guaranteed to round correctly to the actual float. One consequence of that choice is that if you start with any (not too large, not too small) decimal literal with 15 or fewer significant digits then the corresponding float will be displayed showing those exact same digits:
>>> x = 15.34509809234
>>> x
15.34509809234
Unfortunately, this furthers the illusion that Python is storing values in decimal. Not so in Python 2.6, though! Here's the original example executed in Python 2.6:
>>> round(52.15, 1)
52.200000000000003
Not only do we round in the opposite direction, getting 52.2
instead of 52.1
, but the displayed value doesn't even print as 52.2
! This behaviour has caused numerous reports to the Python bug tracker along the lines of "round is broken!". But it's not round
that's broken, it's user expectations. (Okay, okay, round
is a little bit broken in Python 2.6, in that it doesn't use correct rounding.)
Short version: if you're using two-argument round, and you're expecting predictable behaviour from a binary approximation to a decimal round of a binary approximation to a decimal halfway case, you're asking for trouble.
So enough with the "two-argument round is bad" argument. What should you be using instead? There are a few possibilities, depending on what you're trying to do.
If you're rounding for display purposes, then you don't want a float result at all; you want a string. In that case the answer is to use string formatting:
>>> format(66.66666666666, '.4f')
'66.6667'
>>> format(1.29578293, '.6f')
'1.295783'
Even then, one has to be aware of the internal binary representation in order not to be surprised by the behaviour of apparent decimal halfway cases.
>>> format(52.15, '.1f')
'52.1'
If you're operating in a context where it matters which direction decimal halfway cases are rounded (for example, in some financial contexts), you might want to represent your numbers using the Decimal
type. Doing a decimal round on the Decimal
type makes a lot more sense than on a binary type (equally, rounding to a fixed number of binary places makes perfect sense on a binary type). Moreover, the decimal
module gives you better control of the rounding mode. In Python 3, round
does the job directly. In Python 2, you need the quantize
method.
>>> Decimal('66.66666666666').quantize(Decimal('1e-4'))
Decimal('66.6667')
>>> Decimal('1.29578293').quantize(Decimal('1e-6'))
Decimal('1.295783')
In rare cases, the two-argument version of round
really is what you want: perhaps you're binning floats into bins of size 0.01
, and you don't particularly care which way border cases go. However, these cases are rare, and it's difficult to justify the existence of the two-argument version of the round
builtin based on those cases alone.
You can check your respone content, just console.log it and you will see whitch property have a status code. If you do not understand jsons, please refer to the video: https://www.youtube.com/watch?v=Bv_5Zv5c-Ts
It explains very basic knowledge that let you feel more comfortable with javascript.
You can do it with shorter version of ajax request, please see code above:
$.get("example.url.com", function(data) {
console.log(data);
}).done(function() {
// TO DO ON DONE
}).fail(function(data, textStatus, xhr) {
//This shows status code eg. 403
console.log("error", data.status);
//This shows status message eg. Forbidden
console.log("STATUS: "+xhr);
}).always(function() {
//TO-DO after fail/done request.
console.log("ended");
});
Example console output:
error 403
STATUS: Forbidden
ended
the mysqli_query
excepts 2 parameters , first variable is mysqli_connect
equivalent variable , second one is the query you have provided
$name1 = mysqli_connect(localhost,tdoylex1_dork,dorkk,tdoylex1_dork);
$name2 = mysqli_query($name1,"SELECT name FROM users ORDER BY RAND() LIMIT 1");
Thanks for the great answers, esp. Adam Stelmaszczyk and piCookie, and aib.
Like many programmers, I have used the informal convention of using the "myApp.hpp"
form for application specific files, and the <libHeader.hpp>
form for library and compiler system files, i.e. files specified in /I
and the INCLUDE
environment variable, for years thinking that was the standard.
However, the C standard states that the search order is implementation specific, which can make portability complicated. To make matters worse, we use jam, which automagically figures out where the include files are. You can use relative or absolute paths for your include files. i.e.
#include "../../MyProgDir/SourceDir1/someFile.hpp"
Older versions of MSVS required double backslashes (\\), but now that's not required. I don't know when it changed. Just use forward slashes for compatibility with 'nix (Windows will accept that).
If you are really worried about it, use "./myHeader.h"
for an include file in the same directory as the source code (my current, very large project has some duplicate include file names scattered about--really a configuration management problem).
Here's the MSDN explanation copied here for your convenience).
Quoted form
The preprocessor searches for include files in this order:
- In the same directory as the file that contains the #include statement.
- In the directories of the currently opened include files, in the reverse order in which
they were opened. The search begins in the directory of the parent include file and
continues upward through the directories of any grandparent include files.- Along the path that's specified by each
/I
compiler option.- Along the paths that are specified by the
INCLUDE
environment variable.Angle-bracket form
The preprocessor searches for include files in this order:
- Along the path that's specified by each
/I
compiler option.- When compiling occurs on the command line, along the paths that are specified by the
INCLUDE
environment variable.
For this purpose I have implemented the following function:
private long onRecentBackPressedTime;
@Override
public void onBackPressed() {
if (System.currentTimeMillis() - onRecentBackPressedTime > 2000) {
onRecentBackPressedTime = System.currentTimeMillis();
Toast.makeText(this, "Please press BACK again to exit", Toast.LENGTH_SHORT).show();
return;
}
super.onBackPressed();
}
For me, the cause was using a specific Zookeeper that was not part of the Kafka package. That Zookeeper was already installed on the machine for other purposes. Apparently Kafka does not work with just any Zookeeper. Switching to the Zookeeper that came with Kafka solved it for me. To not conflict with the existing Zookeeper, I had to modify my confguration to have the Zookeeper listen on a different port:
[root@host /opt/kafka/config]# grep 2182 *
server.properties:zookeeper.connect=localhost:2182
zookeeper.properties:clientPort=2182
I have installed IReport 5.6 with Java 7: not working
I tried to install Java 6 and added the path to "ireport.conf" file like the attached screenshot and it worked fine :D
So the steps is :
Install IReport 5.6
Install JDK 6
Edit "ireport.conf" file like the below image and Enjoy ;)
It seems you're actually talking about an MVC (Model-View-Controller) pattern, where logic is separated into various "tiers". Django, as a framework, follows MVC (loosely). You have models that contain your business logic and relate directly to tables in your database, views which in effect act like the controller, handling requests and returning responses, and finally, templates which handle presentation.
Django isn't just one of these, it is a complete framework for application development and provides all the tools you need for that purpose.
Frontend vs Backend is all semantics. You could potentially build a Django app that is entirely "backend", using its built-in admin contrib package to manage the data for an entirely separate application. Or, you could use it solely for "frontend", just using its views and templates but using something else entirely to manage the data. Most usually, it's used for both. The built-in admin (the "backend"), provides an easy way to manage your data and you build apps within Django to present that data in various ways. However, if you were so inclined, you could also create your own "backend" in Django. You're not forced to use the default admin.
Accessing colors from a non-activity class can be difficult. One of the alternatives that I found was using enum
. enum
offers a lot of flexibility.
public enum Colors
{
COLOR0(0x26, 0x32, 0x38), // R, G, B
COLOR1(0xD8, 0x1B, 0x60),
COLOR2(0xFF, 0xFF, 0x72),
COLOR3(0x64, 0xDD, 0x17);
private final int R;
private final int G;
private final int B;
Colors(final int R, final int G, final int B)
{
this.R = R;
this.G = G;
this.B = B;
}
public int getColor()
{
return (R & 0xff) << 16 | (G & 0xff) << 8 | (B & 0xff);
}
public int getR()
{
return R;
}
public int getG()
{
return G;
}
public int getB()
{
return B;
}
}
$userRecord = Model::where([['email','=',$email],['password','=', $password]])->first();
or
$userRecord = self::where([['email','=',$email],['password','=', $password]])->first();
I` think this condition is better then 2 where. Its where condition array in array of where conditions;
You can try this:
<input type="hidden" name="image" id="input-image{{ image_row }}" />
inputt= '<input type="hidden" name="product_image' value="somevalue">
$("#input-image"+row).remove().append(inputt);
I've always kept the tags in a separate table and then had a mapping table. Of course I've never done anything on a really large scale either.
Having a "tags" table and a map table makes it pretty trivial to generate tag clouds & such since you can easily put together SQL to get a list of tags with counts of how often each tag is used.
I found this page when I was trying to set the backgroundImage
attribute of a div, but hadn't wrapped the backgroundImage
value with url()
. This worked fine:
for (var i=0; i<20; i++) {
// add a wrapper around an image element
var wrapper = document.createElement('div');
wrapper.className = 'image-cell';
// add the image element
var img = document.createElement('div');
img.className = 'image';
img.style.backgroundImage = 'url(http://via.placeholder.com/350x150)';
// add the image to its container; add both to the body
wrapper.appendChild(img);
document.body.appendChild(wrapper);
}
Try using: border:0;
or border:none;
To answer the original question "Why is php not running?" The file your browser is asking for must have the .php extension. If the file has the .html extension, php will not be executed.
I tried to give a simple explanation in my blogpost.
requires 32 bits (4 bytes) to encode any character. For example, in order to represent the "A" character code-point using this scheme, you'll need to write 65 in 32-bit binary number:
00000000 00000000 00000000 01000001 (Big Endian)
If you take a closer look, you'll note that the most-right seven bits are actually the same bits when using the ASCII scheme. But since UTF-32 is fixed width scheme, we must attach three additional bytes. Meaning that if we have two files that only contain the "A" character, one is ASCII-encoded and the other is UTF-32 encoded, their size will be 1 byte and 4 bytes correspondingly.
Many people think that as UTF-32 uses fixed width 32 bit to represent a code-point, UTF-16 is fixed width 16 bits. WRONG!
In UTF-16 the code point maybe represented either in 16 bits, OR 32 bits. So this scheme is variable length encoding system. What is the advantage over the UTF-32? At least for ASCII, the size of files won't be 4 times the original (but still twice), so we're still not ASCII backward compatible.
Since 7-bits are enough to represent the "A" character, we can now use 2 bytes instead of 4 like the UTF-32. It'll look like:
00000000 01000001
You guessed right.. In UTF-8 the code point maybe represented using either 32, 16, 24 or 8 bits, and as the UTF-16 system, this one is also variable length encoding system.
Finally we can represent "A" in the same way we represent it using ASCII encoding system:
01001101
Consider the Chinese letter "?" - its UTF-8 encoding is:
11101000 10101010 10011110
While its UTF-16 encoding is shorter:
10001010 10011110
In order to understand the representation and how it's interpreted, visit the original post.
Android complete source code for adding events and reminders with start and end time format.
/** Adds Events and Reminders in Calendar. */
private void addReminderInCalendar() {
Calendar cal = Calendar.getInstance();
Uri EVENTS_URI = Uri.parse(getCalendarUriBase(true) + "events");
ContentResolver cr = getContentResolver();
TimeZone timeZone = TimeZone.getDefault();
/** Inserting an event in calendar. */
ContentValues values = new ContentValues();
values.put(CalendarContract.Events.CALENDAR_ID, 1);
values.put(CalendarContract.Events.TITLE, "Sanjeev Reminder 01");
values.put(CalendarContract.Events.DESCRIPTION, "A test Reminder.");
values.put(CalendarContract.Events.ALL_DAY, 0);
// event starts at 11 minutes from now
values.put(CalendarContract.Events.DTSTART, cal.getTimeInMillis() + 11 * 60 * 1000);
// ends 60 minutes from now
values.put(CalendarContract.Events.DTEND, cal.getTimeInMillis() + 60 * 60 * 1000);
values.put(CalendarContract.Events.EVENT_TIMEZONE, timeZone.getID());
values.put(CalendarContract.Events.HAS_ALARM, 1);
Uri event = cr.insert(EVENTS_URI, values);
// Display event id
Toast.makeText(getApplicationContext(), "Event added :: ID :: " + event.getLastPathSegment(), Toast.LENGTH_SHORT).show();
/** Adding reminder for event added. */
Uri REMINDERS_URI = Uri.parse(getCalendarUriBase(true) + "reminders");
values = new ContentValues();
values.put(CalendarContract.Reminders.EVENT_ID, Long.parseLong(event.getLastPathSegment()));
values.put(CalendarContract.Reminders.METHOD, Reminders.METHOD_ALERT);
values.put(CalendarContract.Reminders.MINUTES, 10);
cr.insert(REMINDERS_URI, values);
}
/** Returns Calendar Base URI, supports both new and old OS. */
private String getCalendarUriBase(boolean eventUri) {
Uri calendarURI = null;
try {
if (android.os.Build.VERSION.SDK_INT <= 7) {
calendarURI = (eventUri) ? Uri.parse("content://calendar/") : Uri.parse("content://calendar/calendars");
} else {
calendarURI = (eventUri) ? Uri.parse("content://com.android.calendar/") : Uri
.parse("content://com.android.calendar/calendars");
}
} catch (Exception e) {
e.printStackTrace();
}
return calendarURI.toString();
}
<uses-permission android:name="android.permission.READ_CALENDAR" />
<uses-permission android:name="android.permission.WRITE_CALENDAR" />
To add to Tristan's answer, the button can also receive (id)event
in addition to (id)sender
:
- (IBAction) buttonTouchUpInside:(id)sender forEvent:(id)event { .... }
This can be useful if, for example, the button is in a cell in a UITableView
and you want to find the indexPath
of the button that was touched (although I suppose this can also be found via the sender
element).
You have a view model to which your view is strongly typed => use strongly typed helpers:
<%= Html.DropDownListFor(
x => x.SelectedAccountId,
new SelectList(Model.Accounts, "Value", "Text")
) %>
Also notice that I use a SelectList
for the second argument.
And in your controller action you were returning the view model passed as argument and not the one you constructed inside the action which had the Accounts property correctly setup so this could be problematic. I've cleaned it a bit:
public ActionResult AccountTransaction()
{
var accounts = Services.AccountServices.GetAccounts(false);
var viewModel = new AccountTransactionView
{
Accounts = accounts.Select(a => new SelectListItem
{
Text = a.Description,
Value = a.AccountId.ToString()
})
};
return View(viewModel);
}
Yes, this way:
im = Image.open('image.gif')
rgb_im = im.convert('RGB')
r, g, b = rgb_im.getpixel((1, 1))
print(r, g, b)
(65, 100, 137)
The reason you were getting a single value before with pix[1, 1]
is because GIF pixels refer to one of the 256 values in the GIF color palette.
See also this SO post: Python and PIL pixel values different for GIF and JPEG and this PIL Reference page contains more information on the convert()
function.
By the way, your code would work just fine for .jpg
images.
Try the file
command with -i
option.
-i
option Causes the file command to output mime type strings rather than the more traditional human readable ones. Thus it may say text/plain; charset=us-ascii
rather than ASCII text
.
No one mentioned this, but in conjunction to the other responses, you can also get the apk file from your bin directory to your phone or tablet by putting it on a web site and just downloading it.
Your device will complain about installing it after you download it. Your device will advise you or a risk of installing programs from unknown sources and give you the option to bypass the advice.
Your question is very specific. You don't have to pull it from your emulator, just grab the apk file from the bin folder in your project and place it on your real device.
Most people are giving you valuable information for the next step (signing and publishing your apk), you are not required to do that step to get it on your real device.
Downloading it to your real device is a simple method.
How about a Java 8 implementation? (null can be replaced by your default Enum)
public static RandomEnum getEnum(String value) {
return Arrays.stream(RandomEnum.values()).filter(m -> m.value.equals(value)).findAny().orElse(null);
}
Or you could use:
...findAny().orElseThrow(NotFoundException::new);
This is the function I use to modify the exception message in Python 2.7 and 3.x while preserving the original traceback. It requires six
def reraise_modify(caught_exc, append_msg, prepend=False):
"""Append message to exception while preserving attributes.
Preserves exception class, and exception traceback.
Note:
This function needs to be called inside an except because
`sys.exc_info()` requires the exception context.
Args:
caught_exc(Exception): The caught exception object
append_msg(str): The message to append to the caught exception
prepend(bool): If True prepend the message to args instead of appending
Returns:
None
Side Effects:
Re-raises the exception with the preserved data / trace but
modified message
"""
ExceptClass = type(caught_exc)
# Keep old traceback
traceback = sys.exc_info()[2]
if not caught_exc.args:
# If no args, create our own tuple
arg_list = [append_msg]
else:
# Take the last arg
# If it is a string
# append your message.
# Otherwise append it to the
# arg list(Not as pretty)
arg_list = list(caught_exc.args[:-1])
last_arg = caught_exc.args[-1]
if isinstance(last_arg, str):
if prepend:
arg_list.append(append_msg + last_arg)
else:
arg_list.append(last_arg + append_msg)
else:
arg_list += [last_arg, append_msg]
caught_exc.args = tuple(arg_list)
six.reraise(ExceptClass,
caught_exc,
traceback)
A year has 52 weeks and 1 day or 2 in case of a lap year (52 x 7 = 364). 2012-12-31 would be week 53, a week that would only have 2 days because 2012 is a lap year.
string fileIN = @"C:\myTextFile.txt";
string fileOUT = @"C:\myTextFile_Out.txt";
if (File.Exists(fileIN))
{
string[] data = File.ReadAllLines(fileIN);
foreach (string line in data)
if (!line.Equals("my line to remove"))
File.AppendAllText(fileOUT, line);
File.Delete(fileIN);
File.Move(fileOUT, fileIN);
}
Try this:
Dim strFile As String = "yourfile.txt"
Dim fileExists As Boolean = File.Exists(strFile)
Using sw As New StreamWriter(File.Open(strFile, FileMode.OpenOrCreate))
sw.WriteLine( _
IIf(fileExists, _
"Error Message in Occured at-- " & DateTime.Now, _
"Start Error Log for today"))
End Using
I had the same problem of "Unable to ping server at localhost:1099" while I was using intellij 2016 version.
However, as soon as I upgraded it to 2017 version(Ultimate 2017.1) which is installed using "ideaIU-2017.1.exe" the problem disappeared.
//If url is something.domain.com this returns -> domain.com
function getDomain() {
return window.location.hostname.replace(/([a-z]+.)/,"");
}
You need text()
or html()
for label not val()
The function should not be called for label instead it is used to get values of input like text or checkbox etc.
Change
value = $("#telefon").val();
To
value = $("#telefon").text();
Please follow the following steps
Adding libxml2
libxml2.dylib can be found on your mac machin at /usr/lib/libxml2.dylib
Change "Header Search Paths"
Click on [Project Name] (in left panel) -> Project -> Build Settings -> Select All (default is Basic)
Type Header Search Paths in search box
Double click on Header Search Paths -> + -> "$(SDKROOT)/usr/include/libxml2"
Add -lxml2 to "Other linker flag"
Search for "Other Linker Flags" as search in step 2
click on the "Other Linker Flags" row. Click the "+" and add "-lxml2" to the list.
Change your project type to ARC -> No i.e Automatic Reference Counting to No You can search ARC as per in step 2
create model.ts in your component directory as below
export module DataModel {
export interface DataObjectName {
propertyName: type;
}
export interface DataObjectAnother {
propertyName: type;
}
}
then in your component import above as, import {DataModel} from './model';
export class YourComponent {
public DataObject: DataModel.DataObjectName;
}
your DataObject should have all the properties from DataObjectName.
Difference:
the system will try to re-create your service after it is killed
the system will not try to re-create your service after it is killed
Standard example:
@Override
public int onStartCommand(Intent intent, int flags, int startId) {
return START_STICKY;
}
public static byte[] hex2ba(String sHex) throws Hex2baException {
if (1==sHex.length()%2) {
throw(new Hex2baException("Hex string need even number of chars"));
}
byte[] ba = new byte[sHex.length()/2];
for (int i=0;i<sHex.length()/2;i++) {
ba[i] = (Integer.decode(
"0x"+sHex.substring(i*2, (i+1)*2))).byteValue();
}
return ba;
}
1.make sure you ref jquery.js at first
2.check layout,make sure you call "~/bundles/bootstrap"
3.check layout,see render section Scripts position,it must be after "~/bundles/bootstrap"
4.add class "datepicker" to textbox
5.put $('.datepicker').datepicker(); in $(function(){...});
Interestingly, I had this problem too...so I search and found this thread....I found that this worked well for me:
echo "Hello world" | grep "" > test.txt
However - When I had closed that terminal and opened a new one, I discovered that the problem went away! I wish I had kept that terminal open to compare the settings. My current terminal is a bash shell. Not sure what caused that issue to begin with - anyone?
for your exact sample, it should be like this.
DECLARE @m INT
SET @m = 321%11
SELECT @m
string[] result = new string[table.Columns.Count];
DataRow dr = table.Rows[0];
for (int i = 0; i < dr.ItemArray.Length; i++)
{
result[i] = dr[i].ToString();
}
foreach (string str in result)
Console.WriteLine(str);
Assuming your page is available under "http://example.com"
from selenium import webdriver
from selenium.webdriver.common.keys import Keys
driver = webdriver.Firefox()
driver.get("http://example.com")
Select element by id:
inputElement = driver.find_element_by_id("a1")
inputElement.send_keys('1')
Now you can simulate hitting ENTER:
inputElement.send_keys(Keys.ENTER)
or if it is a form you can submit:
inputElement.submit()
The answer to your question is that you need to have permissions. Type the following code in your manifest.xml file:
<uses-sdk android:minSdkVersion="8" android:targetSdkVersion="18" />
<uses-permission android:name="android.permission.READ_CONTACTS" />
<uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE"></uses-permission>
<uses-permission android:name="android.permission.WRITE_OWNER_DATA"></uses-permission>
<uses-permission android:name="android.permission.READ_OWNER_DATA"></uses-permission>`
It worked for me...
i added some exception handling to @Aaron's answer.
import subprocess
import sys
try:
import pandas as pd
except ImportError:
subprocess.check_call([sys.executable, "-m", "pip", "install", 'pandas'])
finally:
import pandas as pd
Change the "MSBuild project build output verbosity" to "Detailed" or above. To do this, follow these steps:
In the tools/options page that appears, set the MSBuild project build output verbosity level to the appropriate setting depending on your version:
Check out the MSBuild messages. The ResolveAssemblyReferences
task, which is the task from which MSB3247 originates, should help you debug this particular issue.
My specific case was an incorrect reference to SqlServerCe. See below. I had two projects referencing two different versions of SqlServerCe. I went to the project with the older version, removed the reference, then added the correct reference.
Target ResolveAssemblyReferences:
Consider app.config remapping of assembly "System.Data.SqlServerCe, ..."
from Version "3.5.1.0" [H:\...\Debug\System.Data.SqlServerCe.dll]
to Version "9.0.242.0" [C:\Program Files\Microsoft Visual Studio 8\Common7\IDE\PublicAssemblies\System.Data.SqlServerCe.dll]
to solve conflict and get rid of warning.
C:\WINDOWS\Microsoft.NET\Framework\v3.5\Microsoft.Common.targets :
warning MSB3247: Found conflicts between different versions of the same dependent assembly.
You do not have to open each assembly to determine the versions of referenced assemblies.
We created soyuz-to to simplify 1 problem: how to convert X
to Y
(e.g. String
to Integer
). Constructing of an object is also kind of conversion so it has a simple function to construct Map
, List
, Set
:
import io.thedocs.soyuz.to;
List<String> names = to.list("John", "Fedor");
Please check it - it has a lot of other useful features
The await
inside your asynchronous method is trying to come back to the UI thread.
Since the UI thread is busy waiting for the entire task to complete, you have a deadlock.
Moving the async call to Task.Run()
solves the issue.
Because the async call is now running on a thread pool thread, it doesn't try to come back to the UI thread, and everything therefore works.
Alternatively, you could call StartAsTask().ConfigureAwait(false)
before awaiting the inner operation to make it come back to the thread pool rather than the UI thread, avoiding the deadlock entirely.
Convert.ToInt32
has 19 overloads or 19 different ways that you can call it. Maybe more in 2010 versions.
It will attempt to convert from the following TYPES;
Object, Boolean, Char, SByte, Byte, Int16, UInt16, Int32, UInt32, Int64, UInt64, Single, Double, Decimal, String, Date
and it also has a number of other methods; one to do with a number base and 2 methods involve a System.IFormatProvider
Parse on the other hand only has 4 overloads or 4 different ways you can call the method.
Integer.Parse( s As String)
Integer.Parse( s As String, style As System.Globalization.NumberStyles )
Integer.Parse( s As String, provider As System.IFormatProvider )
Integer.Parse( s As String, style As System.Globalization.NumberStyles, provider As System.IFormatProvider )
You may use:
To create array of objects:
var source = ['left', 'top'];
const result = source.map(arrValue => ({[arrValue]: 0}));
Demo:
var source = ['left', 'top'];_x000D_
_x000D_
const result = source.map(value => ({[value]: 0}));_x000D_
_x000D_
console.log(result);
_x000D_
Or if you wants to create a single object from values of arrays:
var source = ['left', 'top'];
const result = source.reduce((obj, arrValue) => (obj[arrValue] = 0, obj), {});
Demo:
var source = ['left', 'top'];_x000D_
_x000D_
const result = source.reduce((obj, arrValue) => (obj[arrValue] = 0, obj), {});_x000D_
_x000D_
console.log(result);
_x000D_
If you are using react-redux for your application and if you want to show data which is in the redux store, you can set "checked" option as below.
<label>Male</label>
<input
type="radio"
name="gender"
defaultChecked={this.props.gender == "0"}
/>
<label>Female</label>
<input
type="radio"
name="gender"
defaultChecked={this.props.gender == "1"}
/>
Below is Solution with o(n):-
public static void findMaxAndMinValue(int A[]){
int min =0, max = 0;
if(A[0] > A[1] ){
min = A[1];
max = A[0];
}else{
max = A[1];
min = A[0];
}
for(int i = 2;i<A.length ;i++){
if(A[i] > max){
max = A[i];
}
if(min > A[i]){
min = A[i];
}
}
System.out.println("Maxinum Value is "+min+" & Minimum Value is "+max);
}
you seem to have not created an main method, which should probably look something like this (i am not sure)
class RunThis
{
public static void main(String[] args)
{
Calculate answer = new Calculate();
answer.getNumber1();
answer.getNumber2();
answer.setNumber(answer.getNumber1() , answer.getNumber2());
answer.getOper();
answer.setOper(answer.getOper());
answer.getAnswer();
}
}
the point is you should have created a main method under some class and after compiling you should run the .class file containing main method. In this case the main method is under RunThis i.e RunThis.class.
I am new to java this may or may not be the right answer, correct me if i am wrong
The provided answers have issues with relative Url's, such as "/some/path/" This is a limitation of the Uri and UriBuilder class, which is rather hard to understand, since I don't see any reason why relative urls would be problematic when it comes to query manipulation.
Here is a workaround that works for both absolute and relative paths, written and tested in .NET 4:
(small note: this should also work in .NET 4.5, you will only have to change propInfo.GetValue(values, null)
to propInfo.GetValue(values)
)
public static class UriExtensions{
/// <summary>
/// Adds query string value to an existing url, both absolute and relative URI's are supported.
/// </summary>
/// <example>
/// <code>
/// // returns "www.domain.com/test?param1=val1&param2=val2&param3=val3"
/// new Uri("www.domain.com/test?param1=val1").ExtendQuery(new Dictionary<string, string> { { "param2", "val2" }, { "param3", "val3" } });
///
/// // returns "/test?param1=val1&param2=val2&param3=val3"
/// new Uri("/test?param1=val1").ExtendQuery(new Dictionary<string, string> { { "param2", "val2" }, { "param3", "val3" } });
/// </code>
/// </example>
/// <param name="uri"></param>
/// <param name="values"></param>
/// <returns></returns>
public static Uri ExtendQuery(this Uri uri, IDictionary<string, string> values) {
var baseUrl = uri.ToString();
var queryString = string.Empty;
if (baseUrl.Contains("?")) {
var urlSplit = baseUrl.Split('?');
baseUrl = urlSplit[0];
queryString = urlSplit.Length > 1 ? urlSplit[1] : string.Empty;
}
NameValueCollection queryCollection = HttpUtility.ParseQueryString(queryString);
foreach (var kvp in values ?? new Dictionary<string, string>()) {
queryCollection[kvp.Key] = kvp.Value;
}
var uriKind = uri.IsAbsoluteUri ? UriKind.Absolute : UriKind.Relative;
return queryCollection.Count == 0
? new Uri(baseUrl, uriKind)
: new Uri(string.Format("{0}?{1}", baseUrl, queryCollection), uriKind);
}
/// <summary>
/// Adds query string value to an existing url, both absolute and relative URI's are supported.
/// </summary>
/// <example>
/// <code>
/// // returns "www.domain.com/test?param1=val1&param2=val2&param3=val3"
/// new Uri("www.domain.com/test?param1=val1").ExtendQuery(new { param2 = "val2", param3 = "val3" });
///
/// // returns "/test?param1=val1&param2=val2&param3=val3"
/// new Uri("/test?param1=val1").ExtendQuery(new { param2 = "val2", param3 = "val3" });
/// </code>
/// </example>
/// <param name="uri"></param>
/// <param name="values"></param>
/// <returns></returns>
public static Uri ExtendQuery(this Uri uri, object values) {
return ExtendQuery(uri, values.GetType().GetProperties().ToDictionary
(
propInfo => propInfo.Name,
propInfo => { var value = propInfo.GetValue(values, null); return value != null ? value.ToString() : null; }
));
}
}
And here is a suite of unit tests to test the behavior:
[TestFixture]
public class UriExtensionsTests {
[Test]
public void Add_to_query_string_dictionary_when_url_contains_no_query_string_and_values_is_empty_should_return_url_without_changing_it() {
Uri url = new Uri("http://www.domain.com/test");
var values = new Dictionary<string, string>();
var result = url.ExtendQuery(values);
Assert.That(result, Is.EqualTo(new Uri("http://www.domain.com/test")));
}
[Test]
public void Add_to_query_string_dictionary_when_url_contains_hash_and_query_string_values_are_empty_should_return_url_without_changing_it() {
Uri url = new Uri("http://www.domain.com/test#div");
var values = new Dictionary<string, string>();
var result = url.ExtendQuery(values);
Assert.That(result, Is.EqualTo(new Uri("http://www.domain.com/test#div")));
}
[Test]
public void Add_to_query_string_dictionary_when_url_contains_no_query_string_should_add_values() {
Uri url = new Uri("http://www.domain.com/test");
var values = new Dictionary<string, string> { { "param1", "val1" }, { "param2", "val2" } };
var result = url.ExtendQuery(values);
Assert.That(result, Is.EqualTo(new Uri("http://www.domain.com/test?param1=val1¶m2=val2")));
}
[Test]
public void Add_to_query_string_dictionary_when_url_contains_hash_and_no_query_string_should_add_values() {
Uri url = new Uri("http://www.domain.com/test#div");
var values = new Dictionary<string, string> { { "param1", "val1" }, { "param2", "val2" } };
var result = url.ExtendQuery(values);
Assert.That(result, Is.EqualTo(new Uri("http://www.domain.com/test#div?param1=val1¶m2=val2")));
}
[Test]
public void Add_to_query_string_dictionary_when_url_contains_query_string_should_add_values_and_keep_original_query_string() {
Uri url = new Uri("http://www.domain.com/test?param1=val1");
var values = new Dictionary<string, string> { { "param2", "val2" } };
var result = url.ExtendQuery(values);
Assert.That(result, Is.EqualTo(new Uri("http://www.domain.com/test?param1=val1¶m2=val2")));
}
[Test]
public void Add_to_query_string_dictionary_when_url_is_relative_contains_no_query_string_should_add_values() {
Uri url = new Uri("/test", UriKind.Relative);
var values = new Dictionary<string, string> { { "param1", "val1" }, { "param2", "val2" } };
var result = url.ExtendQuery(values);
Assert.That(result, Is.EqualTo(new Uri("/test?param1=val1¶m2=val2", UriKind.Relative)));
}
[Test]
public void Add_to_query_string_dictionary_when_url_is_relative_and_contains_query_string_should_add_values_and_keep_original_query_string() {
Uri url = new Uri("/test?param1=val1", UriKind.Relative);
var values = new Dictionary<string, string> { { "param2", "val2" } };
var result = url.ExtendQuery(values);
Assert.That(result, Is.EqualTo(new Uri("/test?param1=val1¶m2=val2", UriKind.Relative)));
}
[Test]
public void Add_to_query_string_dictionary_when_url_is_relative_and_contains_query_string_with_existing_value_should_add_new_values_and_update_existing_ones() {
Uri url = new Uri("/test?param1=val1", UriKind.Relative);
var values = new Dictionary<string, string> { { "param1", "new-value" }, { "param2", "val2" } };
var result = url.ExtendQuery(values);
Assert.That(result, Is.EqualTo(new Uri("/test?param1=new-value¶m2=val2", UriKind.Relative)));
}
[Test]
public void Add_to_query_string_object_when_url_contains_no_query_string_should_add_values() {
Uri url = new Uri("http://www.domain.com/test");
var values = new { param1 = "val1", param2 = "val2" };
var result = url.ExtendQuery(values);
Assert.That(result, Is.EqualTo(new Uri("http://www.domain.com/test?param1=val1¶m2=val2")));
}
[Test]
public void Add_to_query_string_object_when_url_contains_query_string_should_add_values_and_keep_original_query_string() {
Uri url = new Uri("http://www.domain.com/test?param1=val1");
var values = new { param2 = "val2" };
var result = url.ExtendQuery(values);
Assert.That(result, Is.EqualTo(new Uri("http://www.domain.com/test?param1=val1¶m2=val2")));
}
[Test]
public void Add_to_query_string_object_when_url_is_relative_contains_no_query_string_should_add_values() {
Uri url = new Uri("/test", UriKind.Relative);
var values = new { param1 = "val1", param2 = "val2" };
var result = url.ExtendQuery(values);
Assert.That(result, Is.EqualTo(new Uri("/test?param1=val1¶m2=val2", UriKind.Relative)));
}
[Test]
public void Add_to_query_string_object_when_url_is_relative_and_contains_query_string_should_add_values_and_keep_original_query_string() {
Uri url = new Uri("/test?param1=val1", UriKind.Relative);
var values = new { param2 = "val2" };
var result = url.ExtendQuery(values);
Assert.That(result, Is.EqualTo(new Uri("/test?param1=val1¶m2=val2", UriKind.Relative)));
}
[Test]
public void Add_to_query_string_object_when_url_is_relative_and_contains_query_string_with_existing_value_should_add_new_values_and_update_existing_ones() {
Uri url = new Uri("/test?param1=val1", UriKind.Relative);
var values = new { param1 = "new-value", param2 = "val2" };
var result = url.ExtendQuery(values);
Assert.That(result, Is.EqualTo(new Uri("/test?param1=new-value¶m2=val2", UriKind.Relative)));
}
}
If you don't want to repeat the list twice (as per @J W's answer), then put the updates in a table variable and use a JOIN
in the UPDATE
:
declare @ToDo table (FromName varchar(10), ToName varchar(10))
insert into @ToDo(FromName,ToName) values
('AAA','BBB'),
('CCC','DDD'),
('EEE','FFF')
update ts set LastName = ToName
from dbo.TestStudents ts
inner join
@ToDo t
on
ts.LastName = t.FromName
* * * * * wget -O - http://yoursite.com/tasks.php >/dev/null 2>&1
That should work for you. Just have a wget
script that loads the page.
Using -O -
means that the output of the web request will be sent to STDOUT (standard output)
by adding >/dev/null
we instruct standard output to be redirect to a black hole.
by adding 2>&1
we instruct STDERR (errors) to also be sent to STDOUT, and thus all output will be sent to a blackhole. (so it will load the website, but never write a file anywhere)
Seems like you can't iterate through JSONArray
with a for each
. You can loop through your JSONArray
like this:
for (int i=0; i < arr.length(); i++) {
arr.getJSONObject(i);
}
Be careful while adding a property to the existing object using .(dot) method.
(.dot) method of adding a property to the object should only be used if you know the 'key' beforehand otherwise use the [bracket] method.
Example:
var data = {_x000D_
'Property1': 1_x000D_
};_x000D_
_x000D_
// Two methods of adding a new property [ key (Property4), value (4) ] to the_x000D_
// existing object (data)_x000D_
data['Property2'] = 2; // bracket method_x000D_
data.Property3 = 3; // dot method_x000D_
console.log(data); // { Property1: 1, Property2: 2, Property3: 3 }_x000D_
_x000D_
// But if 'key' of a property is unknown and will be found / calculated_x000D_
// dynamically then use only [bracket] method not a dot method _x000D_
var key;_x000D_
for(var i = 4; i < 6; ++i) {_x000D_
key = 'Property' + i; // Key - dynamically calculated_x000D_
data[key] = i; // CORRECT !!!!_x000D_
}_x000D_
console.log(data); _x000D_
// { Property1: 1, Property2: 2, Property3: 3, Property4: 4, Property5: 5 }_x000D_
_x000D_
for(var i = 6; i < 2000; ++i) {_x000D_
key = 'Property' + i; // Key - dynamically calculated_x000D_
data.key = i; // WRONG !!!!!_x000D_
}_x000D_
console.log(data); _x000D_
// { Property1: 1, Property2: 2, Property3: 3, _x000D_
// Property4: 4, Property5: 5, key: 1999 }
_x000D_
Note the problem in the end of console log - 'key: 1999' instead of Property6: 6, Property7: 7,.........,Property1999: 1999. So the best way of adding dynamically created property is the [bracket] method.
A small variation of Sean's answer:
<import resource="classpath*:spring-config.xml" />
With the asterisk in order to spring search files 'spring-config.xml' anywhere in the classpath.
Another reference: Divide Spring configuration across multiple projects
Yes we can change that but with some more attention
Now add this in your build.gradle in your project while make sure you have checked the build variant of your project like release or Debug
so here I have set my build variant as release
but you may select as Debug as well.
buildTypes {
release {
minifyEnabled false
proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
signingConfig getSigningConfig()
applicationVariants.all { variant ->
variant.outputs.each { output ->
def date = new Date();
def formattedDate = date.format('yyyyMMddHHmmss')
output.outputFile = new File(output.outputFile.parent,
output.outputFile.name.replace("-release", "-" + formattedDate)
//for Debug use output.outputFile = new File(output.outputFile.parent,
// output.outputFile.name.replace("-debug", "-" + formattedDate)
)
}
}
}
}
You may Do it With different Approach Like this
defaultConfig {
applicationId "com.myapp.status"
minSdkVersion 16
targetSdkVersion 23
versionCode 1
versionName "1.0"
setProperty("archivesBaseName", "COMU-$versionName")
}
Using Set property method in build.gradle and Don't forget to sync the gradle before running the projects Hope It will solve your problem :)
A New approach to handle this added recently by google update You may now rename your build according to flavor or Variant output //Below source is from developer android documentation For more details follow the above documentation link
Using the Variant API to manipulate variant outputs is broken with the new plugin. It still works for simple tasks, such as changing the APK name during build time, as shown below:
// If you use each() to iterate through the variant objects,
// you need to start using all(). That's because each() iterates
// through only the objects that already exist during configuration time—
// but those object don't exist at configuration time with the new model.
// However, all() adapts to the new model by picking up object as they are
// added during execution.
android.applicationVariants.all { variant ->
variant.outputs.all {
outputFileName = "${variant.name}-${variant.versionName}.apk"
}
}
Renaming .aab bundle This is nicely answered by David Medenjak
tasks.whenTaskAdded { task ->
if (task.name.startsWith("bundle")) {
def renameTaskName = "rename${task.name.capitalize()}Aab"
def flavor = task.name.substring("bundle".length()).uncapitalize()
tasks.create(renameTaskName, Copy) {
def path = "${buildDir}/outputs/bundle/${flavor}/"
from(path)
include "app.aab"
destinationDir file("${buildDir}/outputs/renamedBundle/")
rename "app.aab", "${flavor}.aab"
}
task.finalizedBy(renameTaskName)
}
//@credit to David Medenjak for this block of code
}
Is there need of above code
What I have observed in the latest version of the android studio 3.3.1
The rename of .aab bundle is done by the previous code there don't require any task rename at all.
Hope it will help you guys. :)
You're thinking of the CSS property font-weight
:
p { font-weight: bold; }
Answer to Question 1
Here's what I did on a Ubuntu EC2
:
A) Login as root using the keypairs
B) Setup the necessary users and their passwords with
# sudo adduser USERNAME
# sudo passwd USERNAME
C) Edit /etc/ssh/sshd_config
setting
PasswordAuthentication yes
PermitRootLogin yes
D) Restart the ssh
daemon with
# sudo service ssh restart
just change ssh to sshd if you are using centOS
Now you can login into your ec2
instance without key pairs.
Alternatively, you can use requests.Session
and observe cookies
before and after a request:
>>> import requests
>>> session = requests.Session()
>>> print(session.cookies.get_dict())
{}
>>> response = session.get('http://google.com')
>>> print(session.cookies.get_dict())
{'PREF': 'ID=5514c728c9215a9a:FF=0:TM=1406958091:LM=1406958091:S=KfAG0U9jYhrB0XNf', 'NID': '67=TVMYiq2wLMNvJi5SiaONeIQVNqxSc2RAwVrCnuYgTQYAHIZAGESHHPL0xsyM9EMpluLDQgaj3db_V37NjvshV-eoQdA8u43M8UwHMqZdL-S2gjho8j0-Fe1XuH5wYr9v'}
If ant-contrib isn't an option, here's a portable solution for Java 1.6 and later:
<property name="before" value="This is a value"/>
<script language="javascript">
var before = project.getProperty("before");
project.setProperty("after", before.replaceAll(" ", "_"));
</script>
<echo>after=${after}</echo>
Runtime rt = Runtime.getRuntime();
rt.maxMemory()
value is b
ActivityManager am = (ActivityManager) getSystemService(ACTIVITY_SERVICE);
am.getMemoryClass()
value is MB
You said:
I want them to always come out as Tanzanian time and not in the local times that various collaborator are in.
If this is the case, then you should not use UTC. All you need to do is to use a DATETIME
type in MySQL instead of a TIMESTAMP
type.
MySQL converts
TIMESTAMP
values from the current time zone to UTC for storage, and back from UTC to the current time zone for retrieval. (This does not occur for other types such asDATETIME
.)
If you are already using a DATETIME
type, then you must be not setting it by the local time to begin with. You'll need to focus less on the database, and more on your application code - which you didn't show here. The problem, and the solution, will vary drastically depending on language, so be sure to tag the question with the appropriate language of your application code.
Try this out:
INSERT INTO table (id, name, age) VALUES (1, 'A', 19) ON DUPLICATE KEY UPDATE id = id + 1;
Hope this helps.
I think importing using one of the methods mentioned is ideal if it truly is a large file, but you can use Excel to create insert statements:
="INSERT INTO table_name VALUES('"&A1&"','"&B1&"','"&C1&"')"
In MS SQL you can use:
SET NOCOUNT ON
To forego showing all the '1 row affected' comments. And if you are doing a lot of rows and it errors out, put a GO between statements every once in a while
install this package
https://github.com/nilpahar/custom-migration/
and run this command.
php artisan migrate:custom -f migration_name
Well, the timeout can be set in milliseconds, see "CURLOPT_CONNECTTIMEOUT_MS" in http://www.php.net/manual/en/function.curl-setopt
below code is simple for removing duplicate in list
def remove_duplicates(x):
a = []
for i in x:
if i not in a:
a.append(i)
return a
print remove_duplicates([1,2,2,3,3,4])
it returns [1,2,3,4]
Here is a Java-Sample and the Byte-Code, post- and preIncrement show no difference in Bytecode:
public class PreOrPostIncrement {
static int somethingToIncrement = 0;
public static void main(String[] args) {
final int rounds = 1000;
postIncrement(rounds);
preIncrement(rounds);
}
private static void postIncrement(final int rounds) {
for (int i = 0; i < rounds; i++) {
somethingToIncrement++;
}
}
private static void preIncrement(final int rounds) {
for (int i = 0; i < rounds; ++i) {
++somethingToIncrement;
}
}
}
And now for the byte-code (javap -private -c PreOrPostIncrement):
public class PreOrPostIncrement extends java.lang.Object{
static int somethingToIncrement;
static {};
Code:
0: iconst_0
1: putstatic #10; //Field somethingToIncrement:I
4: return
public PreOrPostIncrement();
Code:
0: aload_0
1: invokespecial #15; //Method java/lang/Object."<init>":()V
4: return
public static void main(java.lang.String[]);
Code:
0: sipush 1000
3: istore_1
4: sipush 1000
7: invokestatic #21; //Method postIncrement:(I)V
10: sipush 1000
13: invokestatic #25; //Method preIncrement:(I)V
16: return
private static void postIncrement(int);
Code:
0: iconst_0
1: istore_1
2: goto 16
5: getstatic #10; //Field somethingToIncrement:I
8: iconst_1
9: iadd
10: putstatic #10; //Field somethingToIncrement:I
13: iinc 1, 1
16: iload_1
17: iload_0
18: if_icmplt 5
21: return
private static void preIncrement(int);
Code:
0: iconst_0
1: istore_1
2: goto 16
5: getstatic #10; //Field somethingToIncrement:I
8: iconst_1
9: iadd
10: putstatic #10; //Field somethingToIncrement:I
13: iinc 1, 1
16: iload_1
17: iload_0
18: if_icmplt 5
21: return
}
I tried the above messages across a few Linux distros and found the following to work best for me. It’s a short, concise exact word answer that works for Bash on Windows as well.
OS=$(cat /etc/*release | grep ^NAME | tr -d 'NAME="') #$ echo $OS # Ubuntu
An example might have been useful, but if I understood you correctly, this would work:
echo "Hello: world" | cut -f1 -d":"
This will convert Hello: world
into Hello
.
Although you ask about numpy
arrays, you can get the same behavior for regular Python lists by using operator.itemgetter
.
>>> from operator import itemgetter
>>> a = [0,88,26,3,48,85,65,16,97,83,91]
>>> ind_pos = [1, 5, 7]
>>> print itemgetter(*ind_pos)(a)
(88, 85, 16)
% ps -o args -C nginx
COMMAND
build/sbin/nginx -c ../test.conf
If nginx was run without the -c
option, then you can use the -V
option to find out the configure arguments that were set to non-standard values. Among them the most interesting for you are:
--prefix=PATH set installation prefix
--sbin-path=PATH set nginx binary pathname
--conf-path=PATH set nginx.conf pathname
Sounds like you just need a UINavigationController
setup?
You can get the AppDelegate
anywhere in the program via
YourAppDelegateName* blah = (YourAppDelegateName*)[[UIApplication sharedApplication]delegate];
In your app delegate you should have your navigation controller setup, either via IB or in code.
In code, assuming you've created your 'House overview' viewcontroller already it would be something like this in your AppDelegate
didFinishLaunchingWithOptions
...
self.m_window = [[[UIWindow alloc]initWithFrame:[[UIScreen mainScreen]bounds] autorelease];
self.m_navigationController = [[[UINavigationController alloc]initWithRootViewController:homeViewController]autorelease];
[m_window addSubview:self.m_navigationController.view];
After this you just need a viewcontroller per 'room' and invoke the following when a button click event is picked up...
YourAppDelegateName* blah = (YourAppDelegateName*)[[UIApplication sharedApplication]delegate];
[blah.m_navigationController pushViewController:newRoomViewController animated:YES];
I've not tested the above code so forgive any syntax errors but hope the pseudo code is of help...
You can use case-sensitive or case-insensitive comparison, depending what you need. Case-sensitive is like this:
if ([category isEqualToString:@"Some String"])
{
// Both strings are equal without respect to their case.
}
Case-insensitive is like this:
if ([category compare:@"Some String" options:NSCaseInsensitiveSearch] == NSOrderedSame)
{
// Both strings are equal with respect to their case.
}
Good news is that now material design library supports determinate circular progress bars too:
<com.google.android.material.progressindicator.CircularProgressIndicator
android:layout_width="wrap_content"
android:layout_height="wrap_content" />
For more info about this refer here.
The most effective solution that I found is to define the parent element with display:flex
and align-items:center
<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<style>
.myclass{
display:flex;
align-items:center;
background-color:grey;
color:#fff;
height:50px;
}
</style>
</head>
<body>
<div class="myclass">
<input type="checkbox">
<label>do you love Ananas?
</label>
</div>
</body>
</html>
OUTPUT:
After searching the net, it seams the best solution is saving the file as .xlsb (binary) rather than .xlsm
Belonging to other reply, I have added condition clause for getting null.
string ComingUrl = "";
if (Request.UrlReferrer != null)
{
ComingUrl = System.Web.HttpContext.Current.Request.UrlReferrer.ToString();
}
else
{
ComingUrl = "Direct"; // Your code
}
Or use links. While it is rather unpleasant to update the PATH in a running environment, it's easy to recreate a link to a new version of JRE/JDK. So:
If anyone is still wondering what the value in CV_CAP_PROP_EXPOSURE
might be:
Depends. For my cheap webcam I have to enter the desired value directly, e.g. 0.1 for 1/10s. For my expensive industrial camera I have to enter -5 to get an exposure time of 2^-5s = 1/32s.
<input type="checkbox" value="" ng-model="t.IsPullPoint" onclick="return false;" onkeydown="return false;"><span class="cr"></span></label>
To debug and find the source: Enable Zombies for the app (Product\Scheme) and Launch Instruments, Select Zombies. Run your app in Xcode Then go to Instruments start recording. Go back to your App and try generating the error. Instruments should detect bad call (to zombie) if there is one.
Hope it helps!
Declarative programming is the picture, where imperative programming is instructions for painting that picture.
You're writing in a declarative style if you're "Telling it what it is", rather than describing the steps the computer should take to get to where you want it.
When you use XML to mark-up data, you're using declarative programming because you're saying "This is a person, that is a birthday, and over there is a street address".
Some examples of where declarative and imperative programming get combined for greater effect:
Windows Presentation Foundation uses declarative XML syntax to describe what a user interface looks like, and what the relationships (bindings) are between controls and underlying data structures.
Structured configuration files use declarative syntax (as simple as "key=value" pairs) to identify what a string or value of data means.
HTML marks up text with tags that describe what role each piece of text has in relation to the whole document.
use zzz instead of TZD
Example:
DateTime.Now.ToString("yyyy-MM-ddThh:mm:sszzz");
Response:
2011-08-09T11:50:00:02+02:00
You just wrap your query in another one:
SELECT COUNT(*), SUM(Age)
FROM (
SELECT availables.bookdate AS Count, DATEDIFF(now(),availables.updated_at) as Age
FROM availables
INNER JOIN rooms
ON availables.room_id=rooms.id
WHERE availables.bookdate BETWEEN '2009-06-25' AND date_add('2009-06-25', INTERVAL 4 DAY) AND rooms.hostel_id = 5094
GROUP BY availables.bookdate
) AS tmp;
I use this query:
var collection = "countries"; var field = "country";
db[collection].distinct(field).forEach(function(value){print(field + ", " + value + ": " + db.hosts.count({[field]: value}))})
Output:
countries, England: 3536
countries, France: 238
countries, Australia: 1044
countries, Spain: 16
This query first distinct all the values, and then count for each one of them the number of occurrences.
Here is simple function, tested in bash. 1st param of function is string, 2nd param is number of characters to be stripped
function stringStripNCharsFromStart {
echo ${1:$2:${#1}}
}
It is probably the h1
tag causing the problem. Applying margin: 0;
should fix the problem.
But you should use a CSS reset for every new project to eliminate browser consistencies and problems like yours. Probably the most famous one is Eric Meyer's: http://meyerweb.com/eric/tools/css/reset/
If you want to write a loop in Python which prints some integer no etc, then just copy and paste this code, it'll work a lot
# Display Value from 1 TO 3
for i in range(1,4):
print "",i,"value of loop"
# Loop for dictionary data type
mydata = {"Fahim":"Pakistan", "Vedon":"China", "Bill":"USA" }
for user, country in mydata.iteritems():
print user, "belongs to " ,country
A simple answer is to replace this line:
<script type="text/javascript" src="your_directory/bootstrap.min.js"></script>
for this other:
<script type="text/javascript" src="your_directory/bootstrap.bundle.min.js"></script>
Here is all the information you need in order to format clickable hyperlinks in LaTeX:
http://en.wikibooks.org/wiki/LaTeX/Hyperlinks
Essentially, you use the hyperref
package and use the \url
or \href
tag depending on what you're trying to achieve.
Use a struct when you want value semantics as opposed to reference semantics.
Not sure why folks are downvoting this but this is a valid point, and was made before the op clarified his question, and it is the most fundamental basic reason for a struct.
If you need reference semantics you need a class not a struct.
PHP by itself has no SMS module or functions and doesn't allow you to send SMS.
SMS ( Short Messaging System) is a GSM technology an you need a GSM provider that will provide this service for you and may have an PHP API implementation for it.
Usually people in telecom business use Asterisk to handle calls and sms programming.
You can use TreeMap which internally implements the SortedMap below is the example
Sorting by ascending ordering :
Map<Float, String> ascsortedMAP = new TreeMap<Float, String>();
ascsortedMAP.put(8f, "name8");
ascsortedMAP.put(5f, "name5");
ascsortedMAP.put(15f, "name15");
ascsortedMAP.put(35f, "name35");
ascsortedMAP.put(44f, "name44");
ascsortedMAP.put(7f, "name7");
ascsortedMAP.put(6f, "name6");
for (Entry<Float, String> mapData : ascsortedMAP.entrySet()) {
System.out.println("Key : " + mapData.getKey() + "Value : " + mapData.getValue());
}
Sorting by descending ordering :
If you always want this create the map to use descending order in general, if you only need it once create a TreeMap with descending order and put all the data from the original map in.
// Create the map and provide the comparator as a argument
Map<Float, String> dscsortedMAP = new TreeMap<Float, String>(new Comparator<Float>() {
@Override
public int compare(Float o1, Float o2) {
return o2.compareTo(o1);
}
});
dscsortedMAP.putAll(ascsortedMAP);
for further information about SortedMAP read http://examples.javacodegeeks.com/core-java/util/treemap/java-sorted-map-example/
I made a class to manage this issue. This class set different margins for the items inside the recyclerView: only the first row will have a top margin and only the first column will have left margin.
public class RecyclerViewMargin extends RecyclerView.ItemDecoration {
private final int columns;
private int margin;
/**
* constructor
* @param margin desirable margin size in px between the views in the recyclerView
* @param columns number of columns of the RecyclerView
*/
public RecyclerViewMargin(@IntRange(from=0)int margin ,@IntRange(from=0) int columns ) {
this.margin = margin;
this.columns=columns;
}
/**
* Set different margins for the items inside the recyclerView: no top margin for the first row
* and no left margin for the first column.
*/
@Override
public void getItemOffsets(Rect outRect, View view,
RecyclerView parent, RecyclerView.State state) {
int position = parent.getChildLayoutPosition(view);
//set right margin to all
outRect.right = margin;
//set bottom margin to all
outRect.bottom = margin;
//we only add top margin to the first row
if (position <columns) {
outRect.top = margin;
}
//add left margin only to the first column
if(position%columns==0){
outRect.left = margin;
}
}
}
you can set it in your recyclerview this way
RecyclerViewMargin decoration = new RecyclerViewMargin(itemMargin, numColumns);
recyclerView.addItemDecoration(decoration);
You should check it against null
.
If you want to check if object x is null or not, you can do:
if(x != null)
But if it is not null, it can have properties which are null or empty. You will check those explicitly:
if(x.getProperty() != null)
For "empty" check, it depends on what type is involved. For a Java String
, you usually do:
if(str != null && !str.isEmpty())
As you haven't mentioned about any specific problem with this, difficult to tell.
For some reason
socket.on('connect', function() {
console.log(socket.io.engine.id);
});
did not work for me. However
socket.on('connect', function() {
console.log(io().id);
});
did work for me. Hopefully this is helpful for people who also had issues with getting the id. I use Socket IO >= 1.0, by the way.
You can use the instanceof
operator (but see caveat below!).
var myError = new Error('foo');
myError instanceof Error // true
var myString = "Whatever";
myString instanceof Error // false
The above won't work if the error was thrown in a different window/frame/iframe than where the check is happening. In that case, the instanceof Error
check will return false, even for an Error
object. In that case, the easiest approach is duck-typing.
if (myError && myError.stack && myError.message) {
// it's an error, probably
}
However, duck-typing may produce false positives if you have non-error objects that contain stack
and message
properties.
If you want to allow every bot to crawl everything, this is the best way to specify it in your robots.txt:
User-agent: *
Disallow:
Note that the Disallow
field has an empty value, which means according to the specification:
Any empty value, indicates that all URLs can be retrieved.
Your way (with Allow: /
instead of Disallow:
) works, too, but Allow
is not part of the original robots.txt specification, so it’s not supported by all bots (many popular ones support it, though, like the Googlebot). That said, unrecognized fields have to be ignored, and for bots that don’t recognize Allow
, the result would be the same in this case anyway: if nothing is forbidden to be crawled (with Disallow
), everything is allowed to be crawled.
However, formally (per the original spec) it’s an invalid record, because at least one Disallow
field is required:
At least one Disallow field needs to be present in a record.
I have used the following:
public static double Index2Freq(int i, double samples, int nFFT) {
return (double) i * (samples / nFFT / 2.);
}
public static int Freq2Index(double freq, double samples, int nFFT) {
return (int) (freq / (samples / nFFT / 2.0));
}
The inputs are:
i
: Bin to accesssamples
: Sampling rate in Hertz (i.e. 8000 Hz, 44100Hz, etc.)nFFT
: Size of the FFT vectorThe question is old but another important difference between a variable and a field is that a field gets a default value when it's declared.A variable, on the other hand, must be initialized.
I went through the Word to PDF pain when someone dumped me with 10000 word files to convert to PDF. Now I did it in C# and used Word interop but it was slow and crashed if I tried to use PC at all.. very frustrating.
This lead me to discovering I could dump interops and their slowness..... for Excel I use (EPPLUS) and then I discovered that you can get a free tool called Spire that allows converting to PDF... with limitations!
http://www.e-iceblue.com/Introduce/free-doc-component.html#.VtAg4PmLRhE
A one-liner command in Windows PowerShell to delete or rename certain characters will be as below. (here the whitespace is being replaced with underscore)
Dir | Rename-Item –NewName { $_.name –replace " ","_" }
I am a happy boost user and would certainly use Andreas' solution. But if you didn't have access to the boost libs you can use the stream library:
ifstream file(argv[1]);
if (!file)
{
// Can't open file
}
It's not quite as nice as boost::filesystem::exists since the file will actually be opened...but then that's usually the next thing you want to do anyway.
All you really need is a good hash function. On node, I just use
const crypto = require('crypto');
function strToColor(str) {
return '#' + crypto.createHash('md5').update(str).digest('hex').substr(0, 6);
}
It looks like you might have inserted an extra +
at the beginning of each line, which R is interpreting as a unary operator (like -
interpreted as negation, rather than subtraction). I think what will work is
ggplot(combined.data, aes(x = region, y = expression, fill = species)) +
geom_boxplot() +
scale_fill_manual(values = c("yellow", "orange")) +
ggtitle("Expression comparisons for ACTB") +
theme(axis.text.x = element_text(angle=90, face="bold", colour="black"))
Perhaps you copy and pasted from the output of an R console? The console uses +
at the start of the line when the input is incomplete.
Every array in java is considered as an object. The public final length
is the data member
which contains the number of components of the array (length
may be positive or zero)
I had the same issue when working in a solution with multiple projects that share code. Turned out that I forgot to update the DLL in the folder of the 2nd project.
My suggestion is to take a good look at the 'project' column in the Error list window and make sure that project also uses the right DLL.
weightMatrix = [{'A':0,'C':0,'G':0,'T':0} for k in range(motifWidth)]
In Rails 4.1.0, I have faced problem with saving latitude and longitude to MySql database. It can't save large fraction number with float data type. And I change the data type to decimal and working for me.
def change change_column :cities, :latitude, :decimal, :precision => 15, :scale => 13 change_column :cities, :longitude, :decimal, :precision => 15, :scale => 13 end
Add:
using System.Linq;
to the top of your file.
And then:
Car[] carList = ...
var carMake =
from item in carList
where item.Model == "bmw"
select item.Make;
or if you prefer the fluent syntax:
var carMake = carList
.Where(item => item.Model == "bmw")
.Select(item => item.Make);
Things to pay attention to:
item.Make
in the select
clause instead if s.Make
as in your code.item
and .Model
in your where
clauseYou cannot access a local directory from pl/sql. If you use bfile, you will setup a directory (create directory) on the server where Oracle is running where you will need to put your images.
If you want to insert a handful of images from your local machine, you'll need a client side app to do this. You can write your own, but I typically use Toad for this. In schema browser, click onto the table. Click the data tab, and hit + sign to add a row. Double click the BLOB column, and a wizard opens. The far left icon will load an image into the blob:
SQL Developer has a similar feature. See the "Load" link below:
If you need to pull images over the wire, you can do it using pl/sql, but its not straight forward. First, you'll need to setup ACL list access (for security reasons) to allow a user to pull over the wire. See this article for more on ACL setup.
Assuming ACL is complete, you'd pull the image like this:
declare
l_url varchar2(4000) := 'http://www.oracleimg.com/us/assets/12_c_navbnr.jpg';
l_http_request UTL_HTTP.req;
l_http_response UTL_HTTP.resp;
l_raw RAW(2000);
l_blob BLOB;
begin
-- Important: setup ACL access list first!
DBMS_LOB.createtemporary(l_blob, FALSE);
l_http_request := UTL_HTTP.begin_request(l_url);
l_http_response := UTL_HTTP.get_response(l_http_request);
-- Copy the response into the BLOB.
BEGIN
LOOP
UTL_HTTP.read_raw(l_http_response, l_raw, 2000);
DBMS_LOB.writeappend (l_blob, UTL_RAW.length(l_raw), l_raw);
END LOOP;
EXCEPTION
WHEN UTL_HTTP.end_of_body THEN
UTL_HTTP.end_response(l_http_response);
END;
insert into my_pics (pic_id, pic) values (102, l_blob);
commit;
DBMS_LOB.freetemporary(l_blob);
end;
Hope that helps.
The solution with TextBoxFor is OK, but if you don't want to see the field like EditBox stylish (it might be a little confusing for the user) involve changes as follows:
Razor code before changes
<div class="editor-field">
@Html.EditorFor(model => model.Text)
@Html.ValidationMessageFor(model => model.Text)
</div>
After changes
<!-- New div display-field (after div editor-label) -->
<div class="display-field">
@Html.DisplayFor(model => model.Text)
</div>
<div class="editor-field">
<!-- change to HiddenFor in existing div editor-field -->
@Html.HiddenFor(model => model.Text)
@Html.ValidationMessageFor(model => model.Text)
</div>
Generally, this solution prevents field from editing, but shows value of it. There is no need for code-behind modifications.
After allocating DateFormatter
you need to give the formatted string
then you can convert as string like this way
var date = Date()
let formatter = DateFormatter()
formatter.dateFormat = "yyyy-MM-dd HH:mm:ss"
let myString = formatter.string(from: date)
let yourDate: Date? = formatter.date(from: myString)
formatter.dateFormat = "dd-MMM-yyyy"
let updatedString = formatter.string(from: yourDate!)
print(updatedString)
OutPut
01-Mar-2017
You can use the Server object in the System.Web namespace
Server.UrlEncode, Server.UrlDecode, Server.HtmlEncode, and Server.HtmlDecode.
Edit: poster added that this was a windows application and not a web one as one would believe. The items listed above would be available from the HttpUtility class inside System.Web which must be added as a reference to the project.
An iframe
has another scope, so you can't access it to style or to change its content with javascript.
It's basically "another page".
The only thing you can do is to edit its own CSS, because with your global CSS you can't do anything.
This solved the problem :
Paste the code below :
<resources>
<!-- Base application theme. -->
<style name="AppTheme" parent="Theme.AppCompat.Light.NoActionBar">
<!-- Customize your theme here. -->
<item name="android:windowFullscreen">true</item>
<item name="android:windowContentOverlay">@null</item>
<item name="android:windowIsTranslucent">true</item>
</style>
</resources>
And don't forget to make the modifications in the AndroidManifest.xml file. (theme's name)
Be careful about the declaration order of the activities in this file.
This is very clear that to add two classes in single div, first you have to generate the classes and then combine them. This process is used to make changes and reduce the no. of classes. Those who make the website from scratch mostly used this type of methods. they make two classes first class is for color and second class is for setting width, height, font-style, etc. When we combine both the classes then the first class and second class both are in effect.
.color_x000D_
{background-color:#21B286;}_x000D_
.box_x000D_
{_x000D_
width:"100%";_x000D_
height:"100px";_x000D_
font-size: 16px;_x000D_
text-align:center;_x000D_
line-height:1.19em;_x000D_
}_x000D_
.box.color_x000D_
{_x000D_
width:"100%";_x000D_
height:"100px";_x000D_
font-size:16px;_x000D_
color:#000000;_x000D_
text-align:center;_x000D_
}
_x000D_
<div class="box color">orderlist</div>
_x000D_
We ran into this as well.
Counting objects: 85, done.
Delta compression using up to 4 threads.
Compressing objects: 100% (38/38), done.
Writing objects: 100% (38/38), 3.38 KiB | 0 bytes/s, done.
Total 38 (delta 33), reused 0 (delta 0)
Auto packing the repository for optimum performance.
fatal: protocol error: bad line length character: Remo
error: error in sideband demultiplexer
I don't know the gitty details about what went wrong, but in our case what triggered it was that the disk on the server was full.
I know this is an old post, but I thought I would share my solution to help others.
This function will work if you want to valid 10 digits phone number "US number"
function getValidNumber(value)
{
value = $.trim(value).replace(/\D/g, '');
if (value.substring(0, 1) == '1') {
value = value.substring(1);
}
if (value.length == 10) {
return value;
}
return false;
}
Here how to use this method
var num = getValidNumber('(123) 456-7890');
if(num !== false){
alert('The valid number is: ' + num);
} else {
alert('The number you passed is not a valid US phone number');
}
I know this is an old question, but I recently ran into this same issue. It ended up being a Proguard problem (when I set minifyEnabled
to false
it stopped happening.)
To stop it, with proguard enabled, I added the following to my proguard rules file, thanks to a solution I found elsewhere (after discovering that the problem was proguard)
-dontwarn android.support.v7.**
-keep class android.support.v7.** { *; }
-keep interface android.support.v7.** { *; }
Not sure if they're necessary, but I also added these lines:
-keep class com.google.** { *; }
-keep interface com.google.** { *; }
Use std::string::size
or std::string::length
(both are the same).
As you insist to use strlen
, you can:
int size = strlen( str.c_str() );
note the usage of std::string::c_str
, which returns const char*
.
BUT strlen
counts untill it hit \0
char and std::string
can store such chars. In other words, strlen
could sometimes lie for the size.
If you always want to the same transition animation for the activity
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
overridePendingTransition(android.R.anim.fade_in, android.R.anim.fade_out);
@Override
protected void onPause() {
super.onPause();
if (isFinishing()) {
overridePendingTransition(android.R.anim.fade_in, android.R.anim.fade_out);
}
}
It should be put in the HTTP Authorization header. The spec is here https://tools.ietf.org/html/rfc7235
I had the same problem. I am using mysql 5.6.11. To solve this problem I had to change my-default.ini file in mysql-5.6.11-win32 folder So I just pasted the following lines under line [mysqld]
basedir="D:\mysql-5.6.11-win32\"
datadir="D:\mysql-5.6.11-win32\data\"
port=3306
server-id=1
bind-address=127.0.0.1
Options basedir and datadir need to be modified for mysql location.
If these are the parameters of url-string then you need to add them through '?' and '&' chars, for example http://example.com/index.aspx?username=Api_user&password=Api_password.
If these are the parameters of POST request, then you need to create POST data and write it to request stream. Here is sample method:
private static string doRequestWithBytesPostData(string requestUri, string method, byte[] postData,
CookieContainer cookieContainer,
string userAgent, string acceptHeaderString,
string referer,
string contentType, out string responseUri)
{
var result = "";
if (!string.IsNullOrEmpty(requestUri))
{
var request = WebRequest.Create(requestUri) as HttpWebRequest;
if (request != null)
{
request.KeepAlive = true;
var cachePolicy = new RequestCachePolicy(RequestCacheLevel.BypassCache);
request.CachePolicy = cachePolicy;
request.Expect = null;
if (!string.IsNullOrEmpty(method))
request.Method = method;
if (!string.IsNullOrEmpty(acceptHeaderString))
request.Accept = acceptHeaderString;
if (!string.IsNullOrEmpty(referer))
request.Referer = referer;
if (!string.IsNullOrEmpty(contentType))
request.ContentType = contentType;
if (!string.IsNullOrEmpty(userAgent))
request.UserAgent = userAgent;
if (cookieContainer != null)
request.CookieContainer = cookieContainer;
request.Timeout = Constants.RequestTimeOut;
if (request.Method == "POST")
{
if (postData != null)
{
request.ContentLength = postData.Length;
using (var dataStream = request.GetRequestStream())
{
dataStream.Write(postData, 0, postData.Length);
}
}
}
using (var httpWebResponse = request.GetResponse() as HttpWebResponse)
{
if (httpWebResponse != null)
{
responseUri = httpWebResponse.ResponseUri.AbsoluteUri;
cookieContainer.Add(httpWebResponse.Cookies);
using (var streamReader = new StreamReader(httpWebResponse.GetResponseStream()))
{
result = streamReader.ReadToEnd();
}
return result;
}
}
}
}
responseUri = null;
return null;
}
def is_prime(x):
if x < 2:
return False
else:
if x == 2:
return True
else:
for i in range(2, x):
if x % i == 0:
return False
return True
x = int(raw_input("enter a prime number"))
print is_prime(x)
I would not use KML. Instead, use GeoJSON which you can natively consume in Google Maps API now. It is a newer feature that didn't exist from the original responses.
In any case, simply open the SHP file in Quantum GIS, and then you can output it in any format you like (KML, GeoJSON).
If you are using Google Maps for Work, I found a premium extension that handles loading shapefiles directly where you can just connect direct to the shapefile that you generate from ESRI. I did a search on the CMaps site and found this snippet which loaded US by state shapefile: https://gmapsplugin.net/cmapsanalytics/assets/shapes/usstates.shp
var cMap = new centigon.locationIntelligence.MapView();
cMap.key([your_api_key]);
cMap.layerNames(["Basic Shapes"]);
cMap.dbfKeys([['Alabama','Alaska','Arizona','Arkansas','California','Colorado','Connecticut','Delaware','District of Columbia','Florida','Georgia','Hawaii','Idaho','Illinois','Indiana','Iowa','Kansas','Kentucky','Louisiana','Maine','Maryland','Massachusetts','Michigan','Minnesota','Mississippi','Missouri','Montana','Nebraska','Nevada','New Hampshire','New Jersey','New Mexico','New York','North Carolina','North Dakota','Ohio','Oklahoma','Oregon','Pennsylvania','Rhode Island','South Carolina','South Dakota','Tennessee','Texas','Utah','Vermont','Virginia','Washington','West Virginia','Wisconsin','Wyoming']]);
cMap.userShapeKeys([['Massachusetts','Minnesota','Montana','North Dakota','Hawaii','Idaho','Washington','Arizona','California','Colorado','Nevada','New Mexico','Oregon','Utah','Wyoming','Arkansas','Iowa','Kansas','Missouri','Nebraska','Oklahoma','South Dakota','Louisiana','Texas','Connecticut','New Hampshire','Rhode Island','Vermont','Alabama','Florida','Georgia','Mississippi','South Carolina','Illinois','Indiana','Kentucky','North Carolina','Ohio','Tennessee','Virginia','Wisconsin','West Virginia','Delaware','District of Columbia','Maryland','New Jersey','New York','Pennsylvania','Maine','Michigan','Alaska']]);
cMap.labels([['Massachusetts','Minnesota','Montana','North Dakota','Hawaii','Idaho','Washington','Arizona','California','Colorado','Nevada','New Mexico','Oregon','Utah','Wyoming','Arkansas','Iowa','Kansas','Missouri','Nebraska','Oklahoma','South Dakota','Louisiana','Texas','Connecticut','New Hampshire','Rhode Island','Vermont','Alabama','Florida','Georgia','Mississippi','South Carolina','Illinois','Indiana','Kentucky','North Carolina','Ohio','Tennessee','Virginia','Wisconsin','West Virginia','Delaware','District of Columbia','Maryland','New Jersey','New York','Pennsylvania','Maine','Michigan','Alaska']]);
cMap.polyDataSources([centigon.locationIntelligence.CMapAnalytics.DATA_PROVIDERS.SHAPE_DATAPROVIDER]);
cMap.layerTypes([centigon.mapping.Layer.TYPE.POLY]);
cMap.locations([["https://gmapsplugin.net/cmapsanalytics/assets/shapes/usstates.shp"]]);
cMap.panTo("USA");
cMap.zoomLevel(3);
This should be enough to get you started.
class Program
{
static void Main(String[] args)
{
const int bufferSize = 1024;
var sb = new StringBuilder();
var buffer = new Char[bufferSize];
var length = 0L;
var totalRead = 0L;
var count = bufferSize;
using (var sr = new StreamReader(@"C:\Temp\file.txt"))
{
length = sr.BaseStream.Length;
while (count > 0)
{
count = sr.Read(buffer, 0, bufferSize);
sb.Append(buffer, 0, count);
totalRead += count;
}
}
Console.ReadKey();
}
}
To get last day of a month in a specific calendar - and in an extension method -:
public static int DaysInMonthBy(this DateTime src, Calendar calendar)
{
var year = calendar.GetYear(src); // year of src in your calendar
var month = calendar.GetMonth(src); // month of src in your calendar
var lastDay = calendar.GetDaysInMonth(year, month); // days in month means last day of that month in your calendar
return lastDay;
}
you can wrap reserved words in square brackets to avoid these kinds of errors:
dbo.TableName.[Date]
A more "precise" calculation. That is, the number of week/month/quarter/year for a non-complete week/month/quarter/year is the fraction of calendar days in that week/month/quarter/year. For example, the number of months between 2016-02-22 and 2016-03-31 is 8/29 + 31/31 = 1.27586
explanation inline with code
#' Calculate precise number of periods between 2 dates
#'
#' @details The number of week/month/quarter/year for a non-complete week/month/quarter/year
#' is the fraction of calendar days in that week/month/quarter/year.
#' For example, the number of months between 2016-02-22 and 2016-03-31
#' is 8/29 + 31/31 = 1.27586
#'
#' @param startdate start Date of the interval
#' @param enddate end Date of the interval
#' @param period character. It must be one of 'day', 'week', 'month', 'quarter' and 'year'
#'
#' @examples
#' identical(numPeriods(as.Date("2016-02-15"), as.Date("2016-03-31"), "month"), 15/29 + 1)
#' identical(numPeriods(as.Date("2016-02-15"), as.Date("2016-03-31"), "quarter"), (15 + 31)/(31 + 29 + 31))
#' identical(numPeriods(as.Date("2016-02-15"), as.Date("2016-03-31"), "year"), (15 + 31)/366)
#'
#' @return exact number of periods between
#'
numPeriods <- function(startdate, enddate, period) {
numdays <- as.numeric(enddate - startdate) + 1
if (grepl("day", period, ignore.case=TRUE)) {
return(numdays)
} else if (grepl("week", period, ignore.case=TRUE)) {
return(numdays / 7)
}
#create a sequence of dates between start and end dates
effDaysinBins <- cut(seq(startdate, enddate, by="1 day"), period)
#use the earliest start date of the previous bins and create a breaks of periodic dates with
#user's period interval
intervals <- seq(from=as.Date(min(levels(effDaysinBins)), "%Y-%m-%d"),
by=paste("1",period),
length.out=length(levels(effDaysinBins))+1)
#create a sequence of dates between the earliest interval date and last date of the interval
#that contains the enddate
allDays <- seq(from=intervals[1],
to=intervals[intervals > enddate][1] - 1,
by="1 day")
#bin all days in the whole period using previous breaks
allDaysInBins <- cut(allDays, intervals)
#calculate ratio of effective days to all days in whole period
sum( tabulate(effDaysinBins) / tabulate(allDaysInBins) )
} #numPeriods
Please let me know if you find more boundary cases where the above solution does not work.
Whitespace just means characters which are used for spacing, and have an "empty" representation. In the context of python, it means tabs and spaces (it probably also includes exotic unicode spaces, but don't use them). The definitive reference is here: http://docs.python.org/2/reference/lexical_analysis.html#indentation
I'm not sure exactly how to use it.
Put it at the front of the line you want to indent. If you mix spaces and tabs, you'll likely see funky results, so stick with one or the other. (The python community usually follows PEP8 style, which prescribes indentation of four spaces).
You need to create a new indent level after each colon:
for x in range(0, 50):
print x
print 2*x
print x
In this code, the first two print
statements are "inside" the body of the for
statement because they are indented more than the line containing the for
. The third print
is outside because it is indented less than the previous (nonblank) line.
If you don't indent/unindent consistently, you will get indentation errors. In addition, all compound statements (i.e. those with a colon) can have the body supplied on the same line, so no indentation is required, but the body must be composed of a single statement.
Finally, certain statements, like lambda
feature a colon, but cannot have a multiline block as the body.
For single page sites, the following is what I used. It not only sets the active element based on what's been clicked but it also checks for a hash value within the URL location on initial page load.
$(document).ready(function () {
var removeActive = function() {
$( "nav a" ).parents( "li, ul" ).removeClass("active");
};
$( ".nav li" ).click(function() {
removeActive();
$(this).addClass( "active" );
});
removeActive();
$( "a[href='" + location.hash + "']" ).parent( "li" ).addClass( "active" );
});
I know this is an old thread but to further expand the answer here, by default IIS 7.5 creates application pool identity accounts to run the worker process under. You can't search for these accounts like normal user accounts when adding file permissions. To add them into NTFS permission ACL you can type the entire name of the application pool identity and it will work.
It is just a slight difference in the way the application pool identity accounts are handle as they are seen to be virtual accounts.
Also the username of the application pool identity is "IIS AppPool\application pool name" so if it was the application pool DefaultAppPool the user account would be "IIS AppPool\DefaultAppPool".
These can be seen if you open computer management and look at the members of the local group IIS_IUSRS. The SID appended to the end of them is not need when adding the account into an NTFS permission ACL.
Hope that helps
The problem is that Hive
doesn't handle quoted texts. You either need to pre-process the data by changing the delimiter between the fields (e.g: with a Hadoop-streaming job) or you can also give a try to use a custom CSV SerDe which uses OpenCSV to parse the files.
Try this in the console:
var div = document.createElement('div');
div.setAttribute('onclick', 'alert(event)');
div.onclick
In Chrome, it shows this:
function onclick(event) {
alert(event)
}
...and the non-standard name
property of div.onclick
is "onclick"
.
So, whether or not this is anonymous depends your definition of "anonymous." Compare with something like var foo = new Function()
, where foo.name
is an empty string, and foo.toString()
will produce something like
function anonymous() {
}
Assuming your products LINQ class uses a similar yield for enumerating/iterating, the first version is more efficient because its only yielding one value each time its iterated over.
The second example is converting the enumerator/iterator to a list with the ToList() method. This means it manually iterates over all the items in the enumerator and then returns a flat list.
Suppose you made changes to multiple files, like:
But you want to commit only changes of File1 and File3.
There are two ways for doing this:
1.Stage only these two files, using:
git add file1 file2
then, commit
git commit -m "your message"
then push,
git push
2.Direct commit
git commit file1 file3 -m "my message"
then push,
git push
Actually first method is useful in case if we are modifying files regularly and staging them --> Large Projects, generally Live projects.
But if we are modifying files and not staging them then we can do direct commit --> Small projects
Starting from Rob's answer, I am currently using the following syntax.Since the question has received a lot of attention,I decided to share it with you :
var requrl = '@Url.Action("Action", "Controller", null, Request.Url.Scheme, null)';
$.ajax({
type: "POST",
url: requrl,
data: "{queryString:'" + searchVal + "'}",
contentType: "application/json; charset=utf-8",
dataType: "html",
success: function (data) {
alert("here" + data.d.toString());
}
});
By using mode
df.name.mode()
Out[712]:
0 alex
1 helen
dtype: object
Confirmations are easily bypassed with carriage returns, and I find it useful to continually prompt for valid input.
Here's a function to make this easy. "invalid input" appears in red if Y|N is not received, and the user is prompted again.
prompt_confirm() {
while true; do
read -r -n 1 -p "${1:-Continue?} [y/n]: " REPLY
case $REPLY in
[yY]) echo ; return 0 ;;
[nN]) echo ; return 1 ;;
*) printf " \033[31m %s \n\033[0m" "invalid input"
esac
done
}
# example usage
prompt_confirm "Overwrite File?" || exit 0
You can change the default prompt by passing an argument
This is a way:
Using apktool
to decode:
$ apktool d -f {apkfile} -o {output folder}
Next, using JADX (at github.com/skylot/jadx)
$ jadx -d {output folder} {apkfile}
2 tools extract and decompiler to same output folder.
I was able to achieve this more easily than the above answers and in a single line of code by using the new Filter CSS option.
It's compatibility in modern browsers is pretty good - 95% at time of writing, though less than the other answers.
img:hover{_x000D_
filter: brightness(50%);_x000D_
}
_x000D_
<img src='https://via.placeholder.com/300'>
_x000D_
this one's a quickie:
You might think it should be, but really it's not at all!
What are the allowed characters in both cookie name and value?
According to the ancient Netscape cookie_spec the entire NAME=VALUE
string is:
a sequence of characters excluding semi-colon, comma and white space.
So -
should work, and it does seem to be OK in browsers I've got here; where are you having trouble with it?
By implication of the above:
=
is legal to include, but potentially ambiguous. Browsers always split the name and value on the first =
symbol in the string, so in practice you can put an =
symbol in the VALUE but not the NAME.What isn't mentioned, because Netscape were terrible at writing specs, but seems to be consistently supported by browsers:
either the NAME or the VALUE may be empty strings
if there is no =
symbol in the string at all, browsers treat it as the cookie with the empty-string name, ie Set-Cookie: foo
is the same as Set-Cookie: =foo
.
when browsers output a cookie with an empty name, they omit the equals sign. So Set-Cookie: =bar
begets Cookie: bar
.
commas and spaces in names and values do actually seem to work, though spaces around the equals sign are trimmed
control characters (\x00
to \x1F
plus \x7F
) aren't allowed
What isn't mentioned and browsers are totally inconsistent about, is non-ASCII (Unicode) characters:
so in practice you cannot use non-ASCII characters in cookies at all. If you want to use Unicode, control codes or other arbitrary byte sequences, the cookie_spec demands you use an ad-hoc encoding scheme of your own choosing and suggest URL-encoding (as produced by JavaScript's encodeURIComponent
) as a reasonable choice.
In terms of actual standards, there have been a few attempts to codify cookie behaviour but none thus far actually reflect the real world.
RFC 2109 was an attempt to codify and fix the original Netscape cookie_spec. In this standard many more special characters are disallowed, as it uses RFC 2616 tokens (a -
is still allowed there), and only the value may be specified in a quoted-string with other characters. No browser ever implemented the limitations, the special handling of quoted strings and escaping, or the new features in this spec.
RFC 2965 was another go at it, tidying up 2109 and adding more features under a ‘version 2 cookies’ scheme. Nobody ever implemented any of that either. This spec has the same token-and-quoted-string limitations as the earlier version and it's just as much a load of nonsense.
RFC 6265 is an HTML5-era attempt to clear up the historical mess. It still doesn't match reality exactly but it's much better then the earlier attempts—it is at least a proper subset of what browsers support, not introducing any syntax that is supposed to work but doesn't (like the previous quoted-string).
In 6265 the cookie name is still specified as an RFC 2616 token
, which means you can pick from the alphanums plus:
!#$%&'*+-.^_`|~
In the cookie value it formally bans the (filtered by browsers) control characters and (inconsistently-implemented) non-ASCII characters. It retains cookie_spec's prohibition on space, comma and semicolon, plus for compatibility with any poor idiots who actually implemented the earlier RFCs it also banned backslash and quotes, other than quotes wrapping the whole value (but in that case the quotes are still considered part of the value, not an encoding scheme). So that leaves you with the alphanums plus:
!#$%&'()*+-./:<=>?@[]^_`{|}~
In the real world we are still using the original-and-worst Netscape cookie_spec, so code that consumes cookies should be prepared to encounter pretty much anything, but for code that produces cookies it is advisable to stick with the subset in RFC 6265.
You can bind resize
using .resize()
and run your code when the browser is resized. You need to also add an else
condition to your if
statement so that your css values toggle the old and the new, rather than just setting the new.
looks like you have maven project and so resources are in classpath by
go for
getClass().getResource("classpath:storedProcedures.sql")
Last 3 months
SELECT DATEADD(dd,DATEDIFF(dd,0,DATEADD(mm,-3,GETDATE())),0)
Today
SELECT DATEADD(dd,DATEDIFF(dd,0,GETDATE()),0)
with open('path/to/file') as infile: # try open('...', 'rb') as well
answer = [line.strip().split(',') for line in infile]
If you want the numbers as int
s:
with open('path/to/file') as infile:
answer = [[int(i) for i in line.strip().split(',')] for line in infile]
The first way would be preferred to the second.
This is because the header file will show that the parameter is optional and what its default value will be. Additionally, this will ensure that the default value will be the same, no matter the implementation of the corresponding .cpp file.
In the second way, there is no guarantee of a default value for the second parameter. The default value could change, depending on how the corresponding .cpp file is implemented.
You don't need to muck about with extracting parts of the date. Just cast it to a date using to_date and the format in which its stored, then cast that date to a char in the format you want. Like this:
select to_char(to_date('1/10/2011','mm/dd/yyyy'),'mm-dd-yyyy') from dual
Some generic help:
gdb start GDB, with no debugging les
gdb program begin debugging program
gdb program core debug coredump core produced by program
gdb --help describe command line options
First of all, find the directory where the corefile is generated.
Then use ls -ltr
command in the directory to find the latest generated corefile.
To load the corefile use
gdb binary path of corefile
This will load the corefile.
Then you can get the information using the bt
command.
For a detailed backtrace use bt full
.
To print the variables, use print variable-name
or p variable-name
To get any help on GDB, use the help
option or use apropos search-topic
Use frame frame-number
to go to the desired frame number.
Use up n
and down n
commands to select frame n frames up and select frame n frames down respectively.
To stop GDB, use quit
or q
.
I was running on Win7, Tomcat7 with maven-pom setup on Eclipse Mars with maven project enabled. On a NOT running server I only had to change from 3.1 to 3.0 on this screen:
For me it was important to have Dynamic Web Module disabled! Then change the version and then enable Dynamic Web Module again.
<div style='width:200px;margin:0 auto;> sometext or image tag</div>
this works horizontally
There's no problem. I would even remove the CreateNewOrUpdateExisting
from the source and use map[key] = value
directly in your code, because this this is much more readable, because developers would usually know what map[key] = value
means.
Something like this (I'm not a VB programmer)
Public Class MyParameters
public Name As String
public Number As Integer
End Class
newThread as thread = new Thread( AddressOf DoWork)
Dim parameters As New MyParameters
parameters.Name = "Arne"
newThread.Start(parameters);
public shared sub DoWork(byval data as object)
{
dim parameters = CType(data, Parameters)
}
There is no need to use the classpath: protocol in your schemaLocation URL if the namespace is configured correctly and the XSD file is on your classpath.
Spring doc "Registering the handler and the schema" shows how it should be done.
In your case, the problem was probably that the spring-context jar on your classpath was not 2.1. That was why changing the protocol to classpath: and putting the specific 2.1 XSD in your classpath fixed the problem.
From what I've seen, there are 2 schemas defined for the main XSD contained in a spring-* jar. Once to resolve the schema URL with the version and once without it.
As an example see this part of the spring.schemas contents in spring-context-3.0.5.RELEASE.jar:
http\://www.springframework.org/schema/context/spring-context-2.5.xsd=org/springframework/context/config/spring-context-2.5.xsd
http\://www.springframework.org/schema/context/spring-context-3.0.xsd=org/springframework/context/config/spring-context-3.0.xsd
http\://www.springframework.org/schema/context/spring-context.xsd=org/springframework/context/config/spring-context-3.0.xsd
This means that (in xsi:schemaLocation)
http://www.springframework.org/schema/context/spring-context-2.5.xsd
will be validated against
org/springframework/context/config/spring-context-2.5.xsd
in the classpath.
http://www.springframework.org/schema/context/spring-context-3.0.xsd
or
http://www.springframework.org/schema/context/spring-context.xsd
will be validated against
org/springframework/context/config/spring-context-3.0.xsd
in the classpath.
http://www.springframework.org/schema/context/spring-context-2.1.xsd
is not defined so Spring will look for it using the literal URL defined in schemaLocation.
Here's a code excerpt we're using in our app to set request headers. You'll note we set the CONTENT_TYPE header only on a POST or PUT, but the general method of adding headers (via a request interceptor) is used for GET as well.
/**
* HTTP request types
*/
public static final int POST_TYPE = 1;
public static final int GET_TYPE = 2;
public static final int PUT_TYPE = 3;
public static final int DELETE_TYPE = 4;
/**
* HTTP request header constants
*/
public static final String CONTENT_TYPE = "Content-Type";
public static final String ACCEPT_ENCODING = "Accept-Encoding";
public static final String CONTENT_ENCODING = "Content-Encoding";
public static final String ENCODING_GZIP = "gzip";
public static final String MIME_FORM_ENCODED = "application/x-www-form-urlencoded";
public static final String MIME_TEXT_PLAIN = "text/plain";
private InputStream performRequest(final String contentType, final String url, final String user, final String pass,
final Map<String, String> headers, final Map<String, String> params, final int requestType)
throws IOException {
DefaultHttpClient client = HTTPClientFactory.newClient();
client.getParams().setParameter(HttpProtocolParams.USER_AGENT, mUserAgent);
// add user and pass to client credentials if present
if ((user != null) && (pass != null)) {
client.getCredentialsProvider().setCredentials(AuthScope.ANY, new UsernamePasswordCredentials(user, pass));
}
// process headers using request interceptor
final Map<String, String> sendHeaders = new HashMap<String, String>();
if ((headers != null) && (headers.size() > 0)) {
sendHeaders.putAll(headers);
}
if (requestType == HTTPRequestHelper.POST_TYPE || requestType == HTTPRequestHelper.PUT_TYPE ) {
sendHeaders.put(HTTPRequestHelper.CONTENT_TYPE, contentType);
}
// request gzip encoding for response
sendHeaders.put(HTTPRequestHelper.ACCEPT_ENCODING, HTTPRequestHelper.ENCODING_GZIP);
if (sendHeaders.size() > 0) {
client.addRequestInterceptor(new HttpRequestInterceptor() {
public void process(final HttpRequest request, final HttpContext context) throws HttpException,
IOException {
for (String key : sendHeaders.keySet()) {
if (!request.containsHeader(key)) {
request.addHeader(key, sendHeaders.get(key));
}
}
}
});
}
//.... code omitted ....//
}
Well, I'm late.
In your image, the paper is white
, while the background is colored
. So, it's better to detect the paper is Saturation(???)
channel in HSV color space
. Take refer to wiki HSL_and_HSV first. Then I'll copy most idea from my answer in this Detect Colored Segment in an image.
BGR
bgr
to hsv
spaceCanny
, or HoughLines
as you like, I choose findContours
), approx to get the corners.This is my result:
The Python code(Python 3.5 + OpenCV 3.3):
#!/usr/bin/python3
# 2017.12.20 10:47:28 CST
# 2017.12.20 11:29:30 CST
import cv2
import numpy as np
##(1) read into bgr-space
img = cv2.imread("test2.jpg")
##(2) convert to hsv-space, then split the channels
hsv = cv2.cvtColor(img, cv2.COLOR_BGR2HSV)
h,s,v = cv2.split(hsv)
##(3) threshold the S channel using adaptive method(`THRESH_OTSU`) or fixed thresh
th, threshed = cv2.threshold(s, 50, 255, cv2.THRESH_BINARY_INV)
##(4) find all the external contours on the threshed S
#_, cnts, _ = cv2.findContours(threshed, cv2.RETR_EXTERNAL, cv2.CHAIN_APPROX_SIMPLE)
cnts = cv2.findContours(threshed, cv2.RETR_EXTERNAL, cv2.CHAIN_APPROX_SIMPLE)[-2]
canvas = img.copy()
#cv2.drawContours(canvas, cnts, -1, (0,255,0), 1)
## sort and choose the largest contour
cnts = sorted(cnts, key = cv2.contourArea)
cnt = cnts[-1]
## approx the contour, so the get the corner points
arclen = cv2.arcLength(cnt, True)
approx = cv2.approxPolyDP(cnt, 0.02* arclen, True)
cv2.drawContours(canvas, [cnt], -1, (255,0,0), 1, cv2.LINE_AA)
cv2.drawContours(canvas, [approx], -1, (0, 0, 255), 1, cv2.LINE_AA)
## Ok, you can see the result as tag(6)
cv2.imwrite("detected.png", canvas)
Related answers:
you can set maxlength with jquery which is very fast
jQuery(document).ready(function($){ //fire on DOM ready
setformfieldsize(jQuery('#comment'), 50, 'charsremain')
})
Another strange thing. You wont see the libs folder in Android Studio, unless you have at least 1 file in the folder. So, I had to go to the libs folder using File Explorer, and then place the jar file there. Then, it showed up in Android Studio.
I solved this by tacking a last modified timestamp as a query parameter to the scripts.
I did this with an extension method, and using it in my CSHTML files. Note: this implementation caches the timestamp for 1 minute so we don't thrash the disk quite so much.
Here is the extension method:
public static class JavascriptExtension {
public static MvcHtmlString IncludeVersionedJs(this HtmlHelper helper, string filename) {
string version = GetVersion(helper, filename);
return MvcHtmlString.Create("<script type='text/javascript' src='" + filename + version + "'></script>");
}
private static string GetVersion(this HtmlHelper helper, string filename)
{
var context = helper.ViewContext.RequestContext.HttpContext;
if (context.Cache[filename] == null)
{
var physicalPath = context.Server.MapPath(filename);
var version = $"?v={new System.IO.FileInfo(physicalPath).LastWriteTime.ToString("MMddHHmmss")}";
context.Cache.Add(filename, version, null,
DateTime.Now.AddMinutes(5), TimeSpan.Zero,
CacheItemPriority.Normal, null);
return version;
}
else
{
return context.Cache[filename] as string;
}
}
}
And then in the CSHTML page:
@Html.IncludeVersionedJs("/MyJavascriptFile.js")
In the rendered HTML, this appears as:
<script type='text/javascript' src='/MyJavascriptFile.js?20111129120000'></script>
Yes. The only way would be to drop the constraint with an Alter table then recreate it.
ALTER TABLE <Table_Name>
DROP CONSTRAINT <constraint_name>
ALTER TABLE <Table_Name>
ADD CONSTRAINT <constraint_name> PRIMARY KEY (<Column1>,<Column2>)
For what it's worth here are the step by step instructions for doing this in an Android device. Should be the same for iOS:
You should then be able to see the SSL files in Charles. If you want to intercept and change the values you can use the "Map Local" tool which is really awesome:
Further to the excellent accepted answer from Nick Craver, you can throttle the scroll event so that it is not fired so frequently thus increasing browser performance:
var _throttleTimer = null;
var _throttleDelay = 100;
var $window = $(window);
var $document = $(document);
$document.ready(function () {
$window
.off('scroll', ScrollHandler)
.on('scroll', ScrollHandler);
});
function ScrollHandler(e) {
//throttle event:
clearTimeout(_throttleTimer);
_throttleTimer = setTimeout(function () {
console.log('scroll');
//do work
if ($window.scrollTop() + $window.height() > $document.height() - 100) {
alert("near bottom!");
}
}, _throttleDelay);
}
Try with Kivy! kivy.org It's quite easy, multi platform and a really good documentation
For Python 3.4+:
import csv
from pathlib import Path
base_path = Path(__file__).parent
file_path = (base_path / "../data/test.csv").resolve()
with open(file_path) as f:
test = [line for line in csv.reader(f)]
mysql> SET PASSWORD = PASSWORD('your_new_password');
That works for me.
If you're looking to tidy up for PEP8, this will trim trailing whitespace for your whole project:
import os
PATH = '/path/to/your/project'
for path, dirs, files in os.walk(PATH):
for f in files:
file_name, file_extension = os.path.splitext(f)
if file_extension == '.py':
path_name = os.path.join(path, f)
with open(path_name, 'r') as fh:
new = [line.rstrip() for line in fh]
with open(path_name, 'w') as fh:
[fh.write('%s\n' % line) for line in new]
if you got actuall time in mind GETDATE()
would be the function what you looking for
@Liem Vo's answer is correct if you are using android.widget.Button without any overriding. If you are overriding your theme using MaterialComponents, this will not solve the issue.
So if you are
Use app:icon parameter.
<Button
android:id="@+id/bSearch"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:padding="16dp"
android:text="Search"
android:textSize="24sp"
app:icon="@android:drawable/ic_menu_search" />
By using absolute positioning, you can make <body>
or <form>
or <div>
, fit to your browser page. For example:
<body style="position: absolute; bottom: 0px; top: 0px; left: 0px; right: 0px;">
and then simply put a <div>
inside it and use whatever percentage of either height
or width
you wish
<div id="divContainer" style="height: 100%;">
the most effective method is to use android-async-http
You can use this code to upload a file:
// gather your request parameters
File myFile = new File("/path/to/file.png");
RequestParams params = new RequestParams();
try {
params.put("profile_picture", myFile);
} catch(FileNotFoundException e) {}
// send request
AsyncHttpClient client = new AsyncHttpClient();
client.post(url, params, new AsyncHttpResponseHandler() {
@Override
public void onSuccess(int statusCode, Header[] headers, byte[] bytes) {
// handle success response
}
@Override
public void onFailure(int statusCode, Header[] headers, byte[] bytes, Throwable throwable) {
// handle failure response
}
});
Note that you can put this code directly into your main Activity, no need to create a background Task explicitly. AsyncHttp will take care of that for you!
You can use "group by" + "orderby". See LINQ 101 for details
var list = new List<string> {"a", "b", "a", "c", "a", "b"};
var q = from x in list
group x by x into g
let count = g.Count()
orderby count descending
select new {Value = g.Key, Count = count};
foreach (var x in q)
{
Console.WriteLine("Value: " + x.Value + " Count: " + x.Count);
}
In response to this post (now deleted):
If you have a list of some custom objects then you need to use custom comparer or group by specific property.
Also query can't display result. Show us complete code to get a better help.
Based on your latest update:
You have this line of code:
group xx by xx into g
Since xx is a custom object system doesn't know how to compare one item against another. As I already wrote, you need to guide compiler and provide some property that will be used in objects comparison or provide custom comparer. Here is an example:
Note that I use Foo.Name as a key - i.e. objects will be grouped based on value of Name property.
There is one catch - you treat 2 objects to be duplicate based on their names, but what about Id ? In my example I just take Id of the first object in a group. If your objects have different Ids it can be a problem.
//Using extension methods
var q = list.GroupBy(x => x.Name)
.Select(x => new {Count = x.Count(),
Name = x.Key,
ID = x.First().ID})
.OrderByDescending(x => x.Count);
//Using LINQ
var q = from x in list
group x by x.Name into g
let count = g.Count()
orderby count descending
select new {Name = g.Key, Count = count, ID = g.First().ID};
foreach (var x in q)
{
Console.WriteLine("Count: " + x.Count + " Name: " + x.Name + " ID: " + x.ID);
}
If your csv file contains extra data, columns can be deleted from the DataFrame after import.
import pandas as pd
from StringIO import StringIO
csv = r"""dummy,date,loc,x
bar,20090101,a,1
bar,20090102,a,3
bar,20090103,a,5
bar,20090101,b,1
bar,20090102,b,3
bar,20090103,b,5"""
df = pd.read_csv(StringIO(csv),
index_col=["date", "loc"],
usecols=["dummy", "date", "loc", "x"],
parse_dates=["date"],
header=0,
names=["dummy", "date", "loc", "x"])
del df['dummy']
Which gives us:
x
date loc
2009-01-01 a 1
2009-01-02 a 3
2009-01-03 a 5
2009-01-01 b 1
2009-01-02 b 3
2009-01-03 b 5
Since you input field is a controlled element, you cannot directly change the input field value without modifying the state.
Also in
onHandleSubmit(e) {
e.preventDefault();
const city = this.state.city;
this.props.onSearchTermChange(city);
this.mainInput.value = "";
}
this.mainInput
doesn't refer the input since mainInput is an id
, you need to specify a ref to the input
<input
ref={(ref) => this.mainInput= ref}
onChange={this.onHandleChange}
placeholder="Get current weather..."
value={this.state.city}
type="text"
/>
In you current state the best way is to clear the state to clear the input value
onHandleSubmit(e) {
e.preventDefault();
const city = this.state.city;
this.props.onSearchTermChange(city);
this.setState({city: ""});
}
However if you still for some reason want to keep the value in state even if the form is submitted, you would rather make the input uncontrolled
<input
id="mainInput"
onChange={this.onHandleChange}
placeholder="Get current weather..."
type="text"
/>
and update the value in state onChange
and onSubmit
clear the input using ref
onHandleChange(e) {
this.setState({
city: e.target.value
});
}
onHandleSubmit(e) {
e.preventDefault();
const city = this.state.city;
this.props.onSearchTermChange(city);
this.mainInput.value = "";
}
Having Said that, I don't see any point in keeping the state unchanged, so the first option should be the way to go.
Yes they do.
You shouldn't really be overriding the constructor anyway. You should have a newInstance()
static method defined and pass any parameters via arguments (bundle)
For example:
public static final MyFragment newInstance(int title, String message) {
MyFragment f = new MyFragment();
Bundle bdl = new Bundle(2);
bdl.putInt(EXTRA_TITLE, title);
bdl.putString(EXTRA_MESSAGE, message);
f.setArguments(bdl);
return f;
}
And of course grabbing the args this way:
@Override
public void onCreate(Bundle savedInstanceState) {
title = getArguments().getInt(EXTRA_TITLE);
message = getArguments().getString(EXTRA_MESSAGE);
//...
//etc
//...
}
Then you would instantiate from your fragment manager like so:
@Override
public void onCreate(Bundle savedInstanceState) {
if (savedInstanceState == null){
getSupportFragmentManager()
.beginTransaction()
.replace(R.id.content, MyFragment.newInstance(
R.string.alert_title,
"Oh no, an error occurred!")
)
.commit();
}
}
This way if detached and re-attached the object state can be stored through the arguments. Much like bundles attached to Intents.
Reason - Extra reading
I thought I would explain why for people wondering why.
If you check: https://android.googlesource.com/platform/frameworks/base/+/master/core/java/android/app/Fragment.java
You will see the instantiate(..)
method in the Fragment
class calls the newInstance
method:
public static Fragment instantiate(Context context, String fname, @Nullable Bundle args) {
try {
Class<?> clazz = sClassMap.get(fname);
if (clazz == null) {
// Class not found in the cache, see if it's real, and try to add it
clazz = context.getClassLoader().loadClass(fname);
if (!Fragment.class.isAssignableFrom(clazz)) {
throw new InstantiationException("Trying to instantiate a class " + fname
+ " that is not a Fragment", new ClassCastException());
}
sClassMap.put(fname, clazz);
}
Fragment f = (Fragment) clazz.getConstructor().newInstance();
if (args != null) {
args.setClassLoader(f.getClass().getClassLoader());
f.setArguments(args);
}
return f;
} catch (ClassNotFoundException e) {
throw new InstantiationException("Unable to instantiate fragment " + fname
+ ": make sure class name exists, is public, and has an"
+ " empty constructor that is public", e);
} catch (java.lang.InstantiationException e) {
throw new InstantiationException("Unable to instantiate fragment " + fname
+ ": make sure class name exists, is public, and has an"
+ " empty constructor that is public", e);
} catch (IllegalAccessException e) {
throw new InstantiationException("Unable to instantiate fragment " + fname
+ ": make sure class name exists, is public, and has an"
+ " empty constructor that is public", e);
} catch (NoSuchMethodException e) {
throw new InstantiationException("Unable to instantiate fragment " + fname
+ ": could not find Fragment constructor", e);
} catch (InvocationTargetException e) {
throw new InstantiationException("Unable to instantiate fragment " + fname
+ ": calling Fragment constructor caused an exception", e);
}
}
http://docs.oracle.com/javase/6/docs/api/java/lang/Class.html#newInstance() Explains why, upon instantiation it checks that the accessor is public
and that that class loader allows access to it.
It's a pretty nasty method all in all, but it allows the FragmentManger
to kill and recreate Fragments
with states. (The Android subsystem does similar things with Activities
).
Example Class
I get asked a lot about calling newInstance
. Do not confuse this with the class method. This whole class example should show the usage.
/**
* Created by chris on 21/11/2013
*/
public class StationInfoAccessibilityFragment extends BaseFragment implements JourneyProviderListener {
public static final StationInfoAccessibilityFragment newInstance(String crsCode) {
StationInfoAccessibilityFragment fragment = new StationInfoAccessibilityFragment();
final Bundle args = new Bundle(1);
args.putString(EXTRA_CRS_CODE, crsCode);
fragment.setArguments(args);
return fragment;
}
// Views
LinearLayout mLinearLayout;
/**
* Layout Inflater
*/
private LayoutInflater mInflater;
/**
* Station Crs Code
*/
private String mCrsCode;
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
mCrsCode = getArguments().getString(EXTRA_CRS_CODE);
}
@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
mInflater = inflater;
return inflater.inflate(R.layout.fragment_station_accessibility, container, false);
}
@Override
public void onViewCreated(View view, Bundle savedInstanceState) {
super.onViewCreated(view, savedInstanceState);
mLinearLayout = (LinearLayout)view.findViewBy(R.id.station_info_accessibility_linear);
//Do stuff
}
@Override
public void onResume() {
super.onResume();
getActivity().getSupportActionBar().setTitle(R.string.station_info_access_mobility_title);
}
// Other methods etc...
}