With version v2018.2.1
Go to
Preference > Editor > Inspections > Java > Serialization issues > toggle "Serializable class without 'serialVersionUID'".
A warning should appear next to the class declaration.
First of all, let's try to make your code a little simpler:
// No need to create a circle unless it is clearly necessary to
// demonstrate the problem
// Your Rect2f defines a default constructor, so let's use it for simplicity.
shared_ptr<Shape> rect(new Rect2f());
Okay, so now we see that the parentheses are clearly balanced. What else could it be? Let's check the following code snippet's error:
int main() {
delete new T();
}
This may seem like weird usage, and it is, but I really hate memory leaks. However, the output does seem useful:
In function 'int main()':
Line 2: error: expected type-specifier before 'T'
Aha! Now we're just left with the error about the parentheses. I can't find what causes that; however, I think you are forgetting to include the file that defines Rect2f
.
After Saving $data->save()
. all data is pushed inside $data
. As this is an object and the current row is just saved recently inside $data
. so last insertId
will be found inside $data->id
.
Response code will be:
return Response::json(array('success' => true, 'last_insert_id' => $data->id), 200);
MS SQL Studio take care of when you delete the column but if you need to Delete Constraint Programmatically here is simple solution
Here’s a code snippet that’ll drop a column with a default constraint:
DECLARE @ConstraintName nvarchar(200)
SELECT @ConstraintName = Name FROM SYS.DEFAULT_CONSTRAINTS WHERE PARENT_OBJECT_ID = OBJECT_ID('__TableName__') AND PARENT_COLUMN_ID = (SELECT column_id FROM sys.columns WHERE NAME = N'__ColumnName__' AND object_id = OBJECT_ID(N'__TableName__'))
IF @ConstraintName IS NOT NULL
EXEC('ALTER TABLE __TableName__ DROP CONSTRAINT ' + @ConstraintName)
IF EXISTS (SELECT * FROM syscolumns WHERE id=object_id('__TableName__') AND name='__ColumnName__')
EXEC('ALTER TABLE __TableName__ DROP COLUMN __ColumnName__')
Just replace TableName and ColumnName with the appropriate values. You can safely run this even if the column has already been dropped.
Bonus: Here’s the code to drop foreign keys and other types of constraints.
IF EXISTS(SELECT 1 FROM INFORMATION_SCHEMA.CONSTRAINT_COLUMN_USAGE where TABLE_NAME = '__TableName__' AND COLUMN_NAME = '__ColumnName__')
BEGIN
SELECT @ConstraintName = CONSTRAINT_NAME FROM INFORMATION_SCHEMA.CONSTRAINT_COLUMN_USAGE where TABLE_NAME = '__TableName__' AND COLUMN_NAME = '__ColumnName__'
EXEC('ALTER TABLE __TableName__ DROP CONSTRAINT ' + @ConstraintName)
END
For conversion of milliseconds to seconds, since 1 second = 10³ milliseconds:
//here m will be in seconds
long m = System.currentTimeMillis()/1000;
//here m will be in minutes
long m = System.currentTimeMillis()/1000/60; //this will give in mins
For my purposes, in the context of a container view controller, I've found that
- (BOOL)isVisible {
return (self.isViewLoaded && self.view.window && self.parentViewController != nil);
}
works well.
You may want to wrap that functionality up into a filter, this way you don't have to put the mySplit function in all of your controllers. For example
angular.module('myModule', [])
.filter('split', function() {
return function(input, splitChar, splitIndex) {
// do some bounds checking here to ensure it has that index
return input.split(splitChar)[splitIndex];
}
});
From here, you can use a filter as you originally intended
{{test | split:',':0}}
{{test | split:',':0}}
More info at http://docs.angularjs.org/guide/filter (thanks ross)
Plunkr @ http://plnkr.co/edit/NA4UeL
I have used SVN for a long time, but whenever I used Git, I felt that Git is much powerful, lightweight, and although a little bit of learning curve involved but is better than SVN.
What I have noted is that each SVN project, as it grows, becomes a very big size project unless it is exported. Where as, GIT project (along with Git data) is very light weight in size.
In SVN, I've dealt with developers from novice to experts, and the novices and intermediates seem to introduce File conflicts if they copy one folder from another SVN project in order to re-use it. Whereas, I think in Git, you just copy the folder and it works, because Git doesn't introduce .git folders in all its subfolders (as SVN does).
After dealing alot with SVN since long time, I'm finally thinking to move my developers and me to Git, since it is easy to collaborate and merge work, as well as one great advantage is that a local copy's changes can be committed as much desired, and then finally pushed to the branch on server in one go, unlike SVN (where we have to commit the changes from time to time in the repository on server).
Anyone who can help me decide if I should really go with Git?
The solution is fairly straight forward. To ensure that we don't impact the width of the cells in the table, we'll turn off white-space. To ensure we get a horizontal scroll bar, we'll turn on overflow-x. And that's pretty much it:
.container {
width: 30em;
overflow-x: auto;
white-space: nowrap;
}
You can see the end-result here, or in the animation below. If the table determines the height of your container, you should not need to explicitly set overflow-y
to hidden
. But understand that is also an option.
For windows, unix, or Mac? On the Mac or *nix you can use command line or GUI versions of emacs or vim.
For the Mac: TextWrangler to handle big files well. I'm not versed enough on the Windows landscape to help out there.
TLDR; Pandas groupby.agg
has a new, easier syntax for specifying (1) aggregations on multiple columns, and (2) multiple aggregations on a column. So, to do this for pandas >= 0.25, use
df.groupby('dummy').agg(Mean=('returns', 'mean'), Sum=('returns', 'sum'))
Mean Sum
dummy
1 0.036901 0.369012
OR
df.groupby('dummy')['returns'].agg(Mean='mean', Sum='sum')
Mean Sum
dummy
1 0.036901 0.369012
Pandas has changed the behavior of GroupBy.agg
in favour of a more intuitive syntax for specifying named aggregations. See the 0.25 docs section on Enhancements as well as relevant GitHub issues GH18366 and GH26512.
From the documentation,
To support column-specific aggregation with control over the output column names, pandas accepts the special syntax in
GroupBy.agg()
, known as “named aggregation”, where
- The keywords are the output column names
- The values are tuples whose first element is the column to select and the second element is the aggregation to apply to that column. Pandas provides the pandas.NamedAgg namedtuple with the fields ['column', 'aggfunc'] to make it clearer what the arguments are. As usual, the aggregation can be a callable or a string alias.
You can now pass a tuple via keyword arguments. The tuples follow the format of (<colName>, <aggFunc>)
.
import pandas as pd
pd.__version__
# '0.25.0.dev0+840.g989f912ee'
# Setup
df = pd.DataFrame({'kind': ['cat', 'dog', 'cat', 'dog'],
'height': [9.1, 6.0, 9.5, 34.0],
'weight': [7.9, 7.5, 9.9, 198.0]
})
df.groupby('kind').agg(
max_height=('height', 'max'), min_weight=('weight', 'min'),)
max_height min_weight
kind
cat 9.5 7.9
dog 34.0 7.5
Alternatively, you can use pd.NamedAgg
(essentially a namedtuple) which makes things more explicit.
df.groupby('kind').agg(
max_height=pd.NamedAgg(column='height', aggfunc='max'),
min_weight=pd.NamedAgg(column='weight', aggfunc='min')
)
max_height min_weight
kind
cat 9.5 7.9
dog 34.0 7.5
It is even simpler for Series, just pass the aggfunc to a keyword argument.
df.groupby('kind')['height'].agg(max_height='max', min_height='min')
max_height min_height
kind
cat 9.5 9.1
dog 34.0 6.0
Lastly, if your column names aren't valid python identifiers, use a dictionary with unpacking:
df.groupby('kind')['height'].agg(**{'max height': 'max', ...})
In more recent versions of pandas leading upto 0.24, if using a dictionary for specifying column names for the aggregation output, you will get a FutureWarning
:
df.groupby('dummy').agg({'returns': {'Mean': 'mean', 'Sum': 'sum'}})
# FutureWarning: using a dict with renaming is deprecated and will be removed
# in a future version
Using a dictionary for renaming columns is deprecated in v0.20. On more recent versions of pandas, this can be specified more simply by passing a list of tuples. If specifying the functions this way, all functions for that column need to be specified as tuples of (name, function) pairs.
df.groupby("dummy").agg({'returns': [('op1', 'sum'), ('op2', 'mean')]})
returns
op1 op2
dummy
1 0.328953 0.032895
Or,
df.groupby("dummy")['returns'].agg([('op1', 'sum'), ('op2', 'mean')])
op1 op2
dummy
1 0.328953 0.032895
Mikola has the right answer but a little more explanation. It will run the first time, but because append returns None
, after the first iteration of the for loop, your assignment will cause list1
to equal None
and therefore the error is thrown on the second iteration.
Let's clarify first what is a CPU and what is a core, a central processing unit CPU, can have multiple core units, those cores are a processor by itself, capable of execute a program but it is self contained on the same chip.
In the past one CPU was distributed among quite a few chips, but as Moore's Law progressed they made to have a complete CPU inside one chip (die), since the 90's the manufacturer's started to fit more cores in the same die, so that's the concept of Multi-core.
In these days is possible to have hundreds of cores on the same CPU (chip or die) GPUs, Intel Xeon. Other technique developed in the 90's was simultaneous multi-threading, basically they found that was possible to have another thread in the same single core CPU, since most of the resources were duplicated already like ALU, multiple registers.
So basically a CPU can have multiple cores each of them capable to run one thread or more at the same time, we may expect to have more cores in the future, but with more difficulty to be able to program efficiently.
This worked for me (I'm using VS Code):
for:
This is just\na simple sentence
Use:
This .+ sentence
Your code gives expected result,if you compile and run your code standalone(from commandline). As in eclipse for each project by default working directory is project directory that's why you are getting this result.
You can set user.dir property in java as:
System.setProperty("user.dir", "absolute path of src folder");
then it will give expected result.
Select view>>Output to open output window.
In the output window, you can see the result
Below code runs correctly.
#include <iostream>
#include <iomanip>
using namespace std;
int main()
{
double num1 = 3.12345678;
cout << fixed << showpoint;
cout << setprecision(2);
cout << num1 << endl;
}
There is a way this can be done, but it needs to be planned carefully. Take for example the following QBASIC program:
1 A = 1; B = 10;
10 print "A = ",A;
20 IF (A < B) THEN A = A + 1; GOTO 10
30 PRINT "That's the end."
Then create your JavaScript to initialize all variables first, followed by making an initial function call to start the ball rolling (we execute this initial function call at the end), and set up functions for every set of lines that you know will be executed in the one unit.
Follow this with the initial function call...
var a, b;
function fa(){
a = 1;
b = 10;
fb();
}
function fb(){
document.write("a = "+ a + "<br>");
fc();
}
function fc(){
if(a<b){
a++;
fb();
return;
}
else
{
document.write("That's the end.<br>");
}
}
fa();
The result in this instance is:
a = 1
a = 2
a = 3
a = 4
a = 5
a = 6
a = 7
a = 8
a = 9
a = 10
That's the end.
You could do the following:
Of course this isn't actually live.
What would be more sensible is that you could generate preview images for certain URLs e.g. every day or every week and use them. I image that you don't want to do this manually and you don't want to show the users of your service a preview that looks completely different than what the site currently looks like.
Use insert method from range, for example
Sub InsertColumn()
Columns("C:C").Insert Shift:=xlToRight, CopyOrigin:=xlFormatFromLeftOrAbove
Range("C1").Value = "Loc"
End Sub
FWIW, htpasswd -n username
will output the result directly to stdout, and avoid touching files altogether.
There should be svn
utility on you box, if installed:
$ svn checkout http://example.com/svn/somerepo somerepo
This will check out a working copy from a specified repository to a directory somerepo
on our file system.
You may want to print commands, supported by this utility:
$ svn help
uname -a
output in your question is identical to one, used by Parallels Virtuozzo Containers for Linux 4.0 kernel, which is based on Red Hat 5 kernel, thus your friends are rpm
or the following command:
$ sudo yum install subversion
There are numerous methods of accomplishing this, which I'll detail with a few examples below.
img.grayscale {
filter: url("data:image/svg+xml;utf8,<svg xmlns=\'http://www.w3.org/2000/svg\'><filter id=\'grayscale\'><feColorMatrix type=\'matrix\' values=\'0.3333 0.3333 0.3333 0 0 0.3333 0.3333 0.3333 0 0 0.3333 0.3333 0.3333 0 0 0 0 0 1 0\'/></filter></svg>#grayscale"); /* Firefox 3.5+ */
filter: gray; /* IE6-9 */
-webkit-filter: grayscale(100%); /* Chrome 19+ & Safari 6+ */
}
img.grayscale:hover {
filter: none;
-webkit-filter: grayscale(0%);
}
img.grayscale {_x000D_
filter: url("data:image/svg+xml;utf8,<svg xmlns=\'http://www.w3.org/2000/svg\'><filter id=\'grayscale\'><feColorMatrix type=\'matrix\' values=\'0.3333 0.3333 0.3333 0 0 0.3333 0.3333 0.3333 0 0 0.3333 0.3333 0.3333 0 0 0 0 0 1 0\'/></filter></svg>#grayscale");_x000D_
/* Firefox 3.5+, IE10 */_x000D_
filter: gray;_x000D_
/* IE6-9 */_x000D_
-webkit-filter: grayscale(100%);_x000D_
/* Chrome 19+ & Safari 6+ */_x000D_
-webkit-transition: all .6s ease;_x000D_
/* Fade to color for Chrome and Safari */_x000D_
-webkit-backface-visibility: hidden;_x000D_
/* Fix for transition flickering */_x000D_
}_x000D_
_x000D_
img.grayscale:hover {_x000D_
filter: none;_x000D_
-webkit-filter: grayscale(0%);_x000D_
}_x000D_
_x000D_
svg {_x000D_
background: url(http://4.bp.blogspot.com/-IzPWLqY4gJ0/T01CPzNb1KI/AAAAAAAACgA/_8uyj68QhFE/s400/a2cf7051-5952-4b39-aca3-4481976cb242.jpg);_x000D_
}_x000D_
_x000D_
svg image {_x000D_
transition: all .6s ease;_x000D_
}_x000D_
_x000D_
svg image:hover {_x000D_
opacity: 0;_x000D_
}
_x000D_
<p>Firefox, Chrome, Safari, IE6-9</p>_x000D_
<img class="grayscale" src="http://4.bp.blogspot.com/-IzPWLqY4gJ0/T01CPzNb1KI/AAAAAAAACgA/_8uyj68QhFE/s1600/a2cf7051-5952-4b39-aca3-4481976cb242.jpg" width="400">_x000D_
<p>IE10 with inline SVG</p>_x000D_
<svg xmlns="http://www.w3.org/2000/svg" id="svgroot" viewBox="0 0 400 377" width="400" height="377">_x000D_
<defs>_x000D_
<filter id="filtersPicture">_x000D_
<feComposite result="inputTo_38" in="SourceGraphic" in2="SourceGraphic" operator="arithmetic" k1="0" k2="1" k3="0" k4="0" />_x000D_
<feColorMatrix id="filter_38" type="saturate" values="0" data-filterid="38" />_x000D_
</filter>_x000D_
</defs>_x000D_
<image filter="url("#filtersPicture")" x="0" y="0" width="400" height="377" xmlns:xlink="http://www.w3.org/1999/xlink" xlink:href="http://4.bp.blogspot.com/-IzPWLqY4gJ0/T01CPzNb1KI/AAAAAAAACgA/_8uyj68QhFE/s1600/a2cf7051-5952-4b39-aca3-4481976cb242.jpg" />_x000D_
</svg>
_x000D_
You can find an article related to this technique here.
This approach requires two copies of an image: one in grayscale and the other in full color. Using the CSS :hover
psuedoselector, you can update the background of your element to toggle between the two:
#yourimage {
background: url(../grayscale-image.png);
}
#yourImage:hover {
background: url(../color-image.png};
}
#google {_x000D_
background: url('http://www.google.com/logos/keystroke10-hp.png');_x000D_
height: 95px;_x000D_
width: 275px;_x000D_
display: block;_x000D_
/* Optional for a gradual animation effect */_x000D_
transition: 0.5s;_x000D_
}_x000D_
_x000D_
#google:hover {_x000D_
background: url('https://graphics217b.files.wordpress.com/2011/02/logo1w.png');_x000D_
}
_x000D_
<a id='google' href='http://www.google.com'></a>
_x000D_
This could also be accomplished by using a Javascript-based hover effect such as jQuery's hover()
function in the same manner.
The desaturate library is a common library that allows you to easily switch between a grayscale version and full-colored version of a given element or image.
I use pendulum:
import pendulum
d = pendulum.now("UTC").to_iso8601_string()
print(d)
>>> 2019-10-30T00:11:21.818265Z
The example above can be simplify a bit. Additionally you can put date manually from keyboard instead of selecting it via datepicker only. When clearing the value you need to handle also 'on clearDate' action to remove startDate/endDate boundary:
JS file:
$(".from_date").datepicker({
format: 'yyyy-mm-dd',
autoclose: true,
}).on('changeDate', function (selected) {
var startDate = new Date(selected.date.valueOf());
$('.to_date').datepicker('setStartDate', startDate);
}).on('clearDate', function (selected) {
$('.to_date').datepicker('setStartDate', null);
});
$(".to_date").datepicker({
format: 'yyyy-mm-dd',
autoclose: true,
}).on('changeDate', function (selected) {
var endDate = new Date(selected.date.valueOf());
$('.from_date').datepicker('setEndDate', endDate);
}).on('clearDate', function (selected) {
$('.from_date').datepicker('setEndDate', null);
});
HTML:
<input class="from_date" placeholder="Select start date" type="text" name="from_date">
<input class="to_date" placeholder="Select end date" type="text" name="to_date">
I'm new to Xcode, so it took me a few hours to figure out the issue in order to load xls file. I followed through most of the sample codes up there and none of them solves the error Xcode shown.
The solution I found was that we need to specify the 'Add to targets:' tick the project to add, when we import the xls file into Xcode by drag and drop into Project -> Supporting Files.
var date1 = new Date("7/11/2010");
var date2 = new Date("8/11/2010");
var diffDays = parseInt((date2 - date1) / (1000 * 60 * 60 * 24), 10);
alert(diffDays )
You could try this
box-shadow:
progid:DXImageTransform.Microsoft.dropshadow(OffX=0, OffY=10, Color='#19000000'),
progid:DXImageTransform.Microsoft.dropshadow(OffX=10, OffY=20, Color='#19000000'),
progid:DXImageTransform.Microsoft.dropshadow(OffX=20, OffY=30, Color='#19000000'),
progid:DXImageTransform.Microsoft.dropshadow(OffX=30, OffY=40, Color='#19000000');
Alamofire Fetch data with POST,Parameter and Headers
func feedbackApi(){
DispatchQueue.main.async {
let headers = [
"Content-Type": "application/x-www-form-urlencoded",
"Authorization": "------"
]
let url = URL(string: "---------")
var parameters = [String:AnyObject]()
parameters = [
"device_id":"-----" as AnyObject,
"user_id":"----" as AnyObject,
"cinema_id":"-----" as AnyObject,
"session_id":"-----" as AnyObject,
]
Alamofire.request(url!, method: .post, parameters: parameters,headers:headers).responseJSON { response in
switch response.result{
case.success(let data):
self.myResponse = JSON(data)
print(self.myResponse as Any)
let slide = self.myResponse!["sliders"]
print(slide)
print(slide.count)
for i in 0..<slide.count{
let single = Sliders(sliderJson: slide[i])
self.slidersArray.append(single)
}
DispatchQueue.main.async {
self.getSliderCollection.reloadData()
}
case .failure(let error):
print("dddd",error)
}
}
}
}
The Array
and List<T>
classes already have ForEach
methods, though only this specific implementation. (Note that the former is static
, by the way).
Not sure it really offers a great advantage over a foreach
statement, but you could write an extension method to do the job for all IEnumerable<T>
objects.
public static void ForEach<T>(this IEnumerable<T> source, Action<T> action)
{
foreach (var item in source)
action(item);
}
This would allow the exact code you posted in your question to work just as you want.
Suggestions are (basically) based on the text in the current open file and any snippets or completions you have defined (ref). If you want more text suggestions, I'd recommend:
As a side note, I'd really recommend installing Package control to take full advantage of the Sublime community. Some of the options above use Package control. I'd also highly recommend the tutsplus Sublime tutorial videos, which include all sorts of information about improving your efficiency when using Sublime.
I am trying to set a JPanel's background using an image, however, every example I find seems to suggest extending the panel with its own class
yes you will have to extend JPanel
and override the paintcomponent(Graphics g)
function to do so.
@Override
protected void paintComponent(Graphics g) {
super.paintComponent(g);
g.drawImage(bgImage, 0, 0, null);
}
I have been looking for a way to simply add the image without creating a whole new class and within the same method (trying to keep things organized and simple).
You can use other component which allows to add image as icon directly e.g. JLabel
if you want.
ImageIcon icon = new ImageIcon(imgURL);
JLabel thumb = new JLabel();
thumb.setIcon(icon);
But again in the bracket trying to keep things organized and simple !! what makes you to think that just creating a new class will lead you to a messy world ?
The formatter option '%x' % seems to work in assignment statements as well for me. (Assuming Python 3.0 and later)
Example
a = int('0x100', 16)
print(a) #256
print('%x' % a) #100
b = a
print(b) #256
c = '%x' % a
print(c) #100
delete cache using:
php artisan config:clear
php artisan config:cache
Try this
int parentWidth = ((parentViewType)childView.getParent()).getWidth();
int parentHeight = ((parentViewType)childView.getParent()).getHeight();
then you can use LinearLayout.LayoutParams for setting the chileView's parameters
LinearLayout.LayoutParams params = new LinearLayout.LayoutParams(childWidth,childLength);
childView.setLayoutParams(params);
if($query)
{
// try to export to excel the whole data ---
//initialize php excel first
ob_end_clean();
//--- create php excel object ---
$objPHPExcel = new PHPExcel();
//define cachemethod
ini_set('memory_limit', '3500M');
$cacheMethod = PHPExcel_CachedObjectStorageFactory::cache_to_phpTemp;
$cacheSettings = array('memoryCacheSize' => '800MB');
//set php excel settings
PHPExcel_Settings::setCacheStorageMethod(
$cacheMethod,$cacheSettings
);
$objPHPExcel->getProperties()->setTitle("export")->setDescription("none");
$objPHPExcel->setActiveSheetIndex(0);
// Field names in the first row
$fields = $query->list_fields();
$col = 0;
foreach ($fields as $field)
{
$objPHPExcel->getActiveSheet()->setCellValueByColumnAndRow($col, 1, $field);
$col++;
}
// Fetching the table data
$row = 2;
foreach($query->result() as $data)
{
$col = 0;
foreach ($fields as $field)
{
$objPHPExcel->getActiveSheet()->setCellValueByColumnAndRow($col, $row, $data->$field);
$col++;
}
$row++;
}
$objPHPExcel->setActiveSheetIndex(0);
//redirect to cleint browser
header('Content-Type: application/vnd.openxmlformats-officedocument.spreadsheetml.sheet');
header('Content-Disposition: attachment;filename=Provinces.xlsx');
header('Cache-Control: max-age=0');
$objWriter = PHPExcel_IOFactory::createWriter($objPHPExcel, 'Excel2007');
$objWriter->save('php://output');
}
1) setState
actions are asynchronous and are batched for performance gains. This is explained in the documentation of setState
.
setState() does not immediately mutate this.state but creates a pending state transition. Accessing this.state after calling this method can potentially return the existing value. There is no guarantee of synchronous operation of calls to setState and calls may be batched for performance gains.
2) Why would they make setState async as JS is a single threaded language and this setState
is not a WebAPI or server call?
This is because setState
alters the state and causes rerendering. This can be an expensive operation and making it synchronous might leave the browser unresponsive.
Thus the setState calls are asynchronous as well as batched for better UI experience and performance.
A bit late but don't matter...
the question is "How do you use...?" short answer is you are doing it correct
&&
instead of AND
and ||
instead of OR
.
$a = 1
$b = 3
Now,
if ($a == 1 && $b == 1) { TRUE } else { FALSE }
in this case the result is "FALSE" because B is not 1, now what if
if ($a == 1 || $b == 1) { TRUE } else { FALSE }
This will return "TRUE" even if B still not the value we asking for, there is another way to return TRUE without the use of OR / || and that would be XOR
if ($a == 1 xor $b == 1) { TRUE } else { FALSE }
in this case we need only one of our variables to be true BUT NOT BOTH if both are TRUE the result would be FALSE.
I hope this helps...
more in:
http://www.php.net/manual/en/language.operators.logical.php
use this one:
DecimalFormat form = new DecimalFormat("0.00");
etToll.setText(form.format(tvTotalAmount) );
Note: Data must be in decimal format (tvTotalAmount)
Try getting Spring to inject it, assuming you're using Spring as a dependency-injection framework.
In your class, do something like this:
public void setSqlResource(Resource sqlResource) {
this.sqlResource = sqlResource;
}
And then in your application context file, in the bean definition, just set a property:
<bean id="someBean" class="...">
<property name="sqlResource" value="classpath:com/somecompany/sql/sql.txt" />
</bean>
And Spring should be clever enough to load up the file from the classpath and give it to your bean as a resource.
You could also look into PropertyPlaceholderConfigurer, and store all your SQL in property files and just inject each one separately where needed. There are lots of options.
In SpringBoot 2.1, I found another solution. Extend standard factory class method getTomcatWebServer. And then return it as a bean from anywhere.
public class CustomTomcatServletWebServerFactory extends TomcatServletWebServerFactory {
@Override
protected TomcatWebServer getTomcatWebServer(Tomcat tomcat) {
System.setProperty("catalina.useNaming", "true");
tomcat.enableNaming();
return new TomcatWebServer(tomcat, getPort() >= 0);
}
}
@Component
public class TomcatConfiguration {
@Bean
public ConfigurableServletWebServerFactory webServerFactory() {
TomcatServletWebServerFactory factory = new CustomTomcatServletWebServerFactory();
return factory;
}
Loading resources from context.xml doesn't work though. Will try to find out.
//do the edit in your javascript
$('.signinform').submit(function() {
$(this).ajaxSubmit({
type : "POST",
//set the data type
dataType:'json',
url: 'index.php/user/signin', // target element(s) to be updated with server response
cache : false,
//check this in Firefox browser
success : function(response){ console.log(response); alert(response)},
error: onFailRegistered
});
return false;
});
//controller function
public function signin() {
$arr = array('a' => 1, 'b' => 2, 'c' => 3, 'd' => 4, 'e' => 5);
//add the header here
header('Content-Type: application/json');
echo json_encode( $arr );
}
For a solution that uses outlook see TheoretiCAL's answer below.
Otherwise, use the smtplib that comes with python. Note that this will require your email account allows smtp, which is not necessarily enabled by default.
SERVER = "smtp.example.com"
FROM = "[email protected]"
TO = ["listOfEmails"] # must be a list
SUBJECT = "Subject"
TEXT = "Your Text"
# Prepare actual message
message = """From: %s\r\nTo: %s\r\nSubject: %s\r\n\
%s
""" % (FROM, ", ".join(TO), SUBJECT, TEXT)
# Send the mail
import smtplib
server = smtplib.SMTP(SERVER)
server.sendmail(FROM, TO, message)
server.quit()
EDIT: this example uses reserved domains like described in RFC2606
SERVER = "smtp.example.com"
FROM = "[email protected]"
TO = ["[email protected]"] # must be a list
SUBJECT = "Hello!"
TEXT = "This is a test of emailing through smtp of example.com."
# Prepare actual message
message = """From: %s\r\nTo: %s\r\nSubject: %s\r\n\
%s
""" % (FROM, ", ".join(TO), SUBJECT, TEXT)
# Send the mail
import smtplib
server = smtplib.SMTP(SERVER)
server.login("MrDoe", "PASSWORD")
server.sendmail(FROM, TO, message)
server.quit()
For it to actually work with gmail, Mr. Doe will need to go to the options tab in gmail and set it to allow smtp connections.
Note the addition of the login line to authenticate to the remote server. The original version does not include this, an oversight on my part.
You can also put DOM elements, like div
on top of the canvas that would represent your canvas elements and be positioned the same way.
Now you can attach event listeners to these divs and run the necessary actions.
Extending Alex's answer slightly:
class User:
def __init__(self):
self.data = [1,2,3]
self.other_data = [4,5,6]
def doSomething(self, source):
dataSource = getattr(self,source)
return dataSource
A = User()
print A.doSomething("data")
print A.doSomething("other_data")
will yield:
[1, 2, 3] [4, 5, 6]
However, personally I don't think that's great style - getattr
will let you access any attribute of the instance, including things like the doSomething
method itself, or even the __dict__
of the instance. I would suggest that instead you implement a dictionary of data sources, like so:
class User:
def __init__(self):
self.data_sources = {
"data": [1,2,3],
"other_data":[4,5,6],
}
def doSomething(self, source):
dataSource = self.data_sources[source]
return dataSource
A = User()
print A.doSomething("data")
print A.doSomething("other_data")
again yielding:
[1, 2, 3] [4, 5, 6]
Another option (just so you've seen it):
$(function () {
$(".inputs").click(function (e) {
alert(e.target.id);
});
});
HTH.
How about
wc -l file.txt | cut -d' ' -f1
i.e. pipe the output of wc
into cut
(where delimiters are spaces and pick just the first field)
If you want 08:30 ( HH:MM) format then try this,
SELECT EmplID
, EmplName
, InTime
, [TimeOut]
, [DateVisited]
, RIGHT('0' + CONVERT(varchar(3),DATEDIFF(minute,InTime, TimeOut)/60),2) + ':' +
RIGHT('0' + CONVERT(varchar(2),DATEDIFF(minute,InTime,TimeOut)%60),2)
as TotalHours from times Order By EmplID, DateVisited
You can use below command lines to switch between two PHP version.
E.g.
I want to switch PHP Version
from 7.1
to 7.2
we can use below command
sudo a2dismod php7.1 && sudo update-alternatives --set php /usr/bin/php7.2 && sudo a2enmod php7.2 && sudo service apache2 restart
a2dismod
is use to disable the current php version and a2enmod
is use to enable the version
Just remove ()
at the end.
List<string> optionList = new List<string>
{ "AdditionalCardPersonAdressType", /* rest of elements */ };
The following code works for me:
Intent cameraIntent = new Intent(android.provider.MediaStore.ACTION_IMAGE_CAPTURE);
startActivityForResult(cameraIntent, 2);
And here is the result:
protected void onActivityResult(int requestCode, int resultCode, Intent imageReturnedIntent)
{
super.onActivityResult(requestCode, resultCode, imageReturnedIntent);
if(resultCode == RESULT_OK)
{
Uri selectedImage = imageReturnedIntent.getData();
ImageView photo = (ImageView) findViewById(R.id.add_contact_label_photo);
Bitmap mBitmap = null;
try
{
mBitmap = Media.getBitmap(this.getContentResolver(), selectedImage);
}
catch (IOException e)
{
e.printStackTrace();
}
}
}
SYSDATE
and GETDATE
perform identically.
SYSDATE
is compatible with Oracle syntax, and GETDATE
is compatible with Microsoft SQL Server syntax.
var1
is a regular string, whereas var2
is an array, this is how you should compare (in this case):
puts var1 == var2[0]
If you want to use numbers in a sequence, define a new sequence with something like
CREATE SEQUENCE public.your_sequence
INCREMENT 1
START 1
MINVALUE 1
;
and then alter the table to use the sequence for the id:
ALTER TABLE ONLY table ALTER COLUMN id SET DEFAULT nextval('your_sequence'::regclass);
Nope, Model window needs to be handle by javaScriptExecutor,Because majorly model window made up of window model, This will works once model appeared then control take a place into model and click the expected element.
have to import javascriptexector
like below,
Javascriptexecutor js =(Javascriptexecutor).driver;
js.executescript(**<element to be clicked>**);
Try this:
var i = 3;
$('#my_table > tbody > tr:eq(' + i + ')').after(html);
or this:
var i = 3;
$('#my_table > tbody > tr').eq( i ).after(html);
or this:
var i = 4;
$('#my_table > tbody > tr:nth-child(' + i + ')').after(html);
All of these will place the row in the same position. nth-child
uses a 1 based index.
Dockerfile
is good if you only have one docker file (per-directory). You can use whatever standard you want if you need multiple docker files in the same directory -
if you have a good reason. In a recent project there were AWS docker files and local dev environment files because the environments differed enough:
Dockerfile
Dockerfile.aws
I am using nodejs and windows 10. A combination of two answers worked for me.
mysql> ALTER USER 'root'@'localhost' IDENTIFIED BY '';
mysql> flush privileges;
followed by:
restart;
Hope this helps for others who still have an issue with this.
int
, when holding numbers.int
is too small, use a long
long
is too small, use BigInteger
Collection
, handling null
, ...) use Integer
/Long
insteadFor each document, the update operator $set
can set multiple values, so rather than replacing the entire object in the items
array, you can set the name
and value
fields of the object individually.
{'$set': {'items.$.name': update.name , 'items.$.value': update.value}}
See below for my original answer - that pattern has worked well, but recently I've started using a different approach to Service/Activity communication:
Use RxJava to execute asynchronous operations.
If the Service needs to continue background operations even when no Activity is running, also start the service from the Application class so that it does not get stopped when unbound.
The advantages I have found in this approach compared to the startService()/LocalBroadcast technique are
Some example code. First the service:
public class AndroidBmService extends Service implements BmService {
private static final int PRESSURE_RATE = 500000; // microseconds between pressure updates
private SensorManager sensorManager;
private SensorEventListener pressureListener;
private ObservableEmitter<Float> pressureObserver;
private Observable<Float> pressureObservable;
public class LocalBinder extends Binder {
public AndroidBmService getService() {
return AndroidBmService.this;
}
}
private IBinder binder = new LocalBinder();
@Nullable
@Override
public IBinder onBind(Intent intent) {
logMsg("Service bound");
return binder;
}
@Override
public int onStartCommand(Intent intent, int flags, int startId) {
return START_NOT_STICKY;
}
@Override
public void onCreate() {
super.onCreate();
sensorManager = (SensorManager)getSystemService(SENSOR_SERVICE);
Sensor pressureSensor = sensorManager.getDefaultSensor(Sensor.TYPE_PRESSURE);
if(pressureSensor != null)
sensorManager.registerListener(pressureListener = new SensorEventListener() {
@Override
public void onSensorChanged(SensorEvent event) {
if(pressureObserver != null) {
float lastPressure = event.values[0];
float lastPressureAltitude = (float)((1 - Math.pow(lastPressure / 1013.25, 0.190284)) * 145366.45);
pressureObserver.onNext(lastPressureAltitude);
}
}
@Override
public void onAccuracyChanged(Sensor sensor, int accuracy) {
}
}, pressureSensor, PRESSURE_RATE);
}
@Override
public Observable<Float> observePressure() {
if(pressureObservable == null) {
pressureObservable = Observable.create(emitter -> pressureObserver = emitter);
pressureObservable = pressureObservable.share();
}
return pressureObservable;
}
@Override
public void onDestroy() {
if(pressureListener != null)
sensorManager.unregisterListener(pressureListener);
}
}
And an Activity that binds to the service and receives pressure altitude updates:
public class TestActivity extends AppCompatActivity {
private ContentTestBinding binding;
private ServiceConnection serviceConnection;
private AndroidBmService service;
private Disposable disposable;
@Override
protected void onDestroy() {
if(disposable != null)
disposable.dispose();
unbindService(serviceConnection);
super.onDestroy();
}
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
binding = DataBindingUtil.setContentView(this, R.layout.content_test);
serviceConnection = new ServiceConnection() {
@Override
public void onServiceConnected(ComponentName componentName, IBinder iBinder) {
logMsg("BlueMAX service bound");
service = ((AndroidBmService.LocalBinder)iBinder).getService();
disposable = service.observePressure()
.observeOn(AndroidSchedulers.mainThread())
.subscribe(altitude ->
binding.altitude.setText(
String.format(Locale.US,
"Pressure Altitude %d feet",
altitude.intValue())));
}
@Override
public void onServiceDisconnected(ComponentName componentName) {
logMsg("Service disconnected");
}
};
bindService(new Intent(
this, AndroidBmService.class),
serviceConnection, BIND_AUTO_CREATE);
}
}
The layout for this Activity is:
<?xml version="1.0" encoding="utf-8"?>
<layout
xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
xmlns:tools="http://schemas.android.com/tools"
>
<LinearLayout
android:layout_width="match_parent"
android:layout_height="match_parent"
tools:context="com.controlj.mfgtest.TestActivity">
<TextView
tools:text="Pressure"
android:id="@+id/altitude"
android:gravity="center_horizontal"
android:layout_gravity="center_vertical"
android:layout_width="match_parent"
android:layout_height="wrap_content"/>
</LinearLayout>
</layout>
If the service needs to run in the background without a bound Activity it can be started from the Application class as well in OnCreate()
using Context#startService()
.
My Original Answer (from 2013):
In your service: (using COPA as service in example below).
Use a LocalBroadCastManager. In your service's onCreate, set up the broadcaster:
broadcaster = LocalBroadcastManager.getInstance(this);
When you want to notify the UI of something:
static final public String COPA_RESULT = "com.controlj.copame.backend.COPAService.REQUEST_PROCESSED";
static final public String COPA_MESSAGE = "com.controlj.copame.backend.COPAService.COPA_MSG";
public void sendResult(String message) {
Intent intent = new Intent(COPA_RESULT);
if(message != null)
intent.putExtra(COPA_MESSAGE, message);
broadcaster.sendBroadcast(intent);
}
In your Activity:
Create a listener on onCreate:
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
super.setContentView(R.layout.copa);
receiver = new BroadcastReceiver() {
@Override
public void onReceive(Context context, Intent intent) {
String s = intent.getStringExtra(COPAService.COPA_MESSAGE);
// do something here.
}
};
}
and register it in onStart:
@Override
protected void onStart() {
super.onStart();
LocalBroadcastManager.getInstance(this).registerReceiver((receiver),
new IntentFilter(COPAService.COPA_RESULT)
);
}
@Override
protected void onStop() {
LocalBroadcastManager.getInstance(this).unregisterReceiver(receiver);
super.onStop();
}
I just tried to get path of shared preferences below like this.This is work for me.
File f = getDatabasePath("MyPrefsFile.xml");
if (f != null)
Log.i("TAG", f.getAbsolutePath());
If you use action.BeginInvoke(), you have to call EndInvoke somewhere - else the framework has to hold the result of the async call on the heap, resulting in a memory leak.
If you don't want to jump to C# 5 with the async/await keywords, you can just use the Task Parallels library in .Net 4. It's much, much nicer than using BeginInvoke/EndInvoke, and gives a clean way to fire-and-forget for async jobs:
using System.Threading.Tasks;
...
void Foo(){}
...
new Task(Foo).Start();
If you have methods to call that take parameters, you can use a lambda to simplify the call without having to create delegates:
void Foo2(int x, string y)
{
return;
}
...
new Task(() => { Foo2(42, "life, the universe, and everything");}).Start();
I'm pretty sure (but admittedly not positive) that the C# 5 async/await syntax is just syntactic sugar around the Task library.
string sample = "ratty";
Console.WriteLine(sample[0]);
And
Console.WriteLine(sample.Chars(0));
Reference: http://msdn.microsoft.com/en-us/library/system.string.chars%28v=VS.71%29.aspx
The above is same as using indexers in c#.
as prior ans remove the height attrib. if u want your expansion along with its min height then use min-height: 102px
instead of height: 102px.
note ie 6 and min-height http://www.dustindiaz.com/min-height-fast-hack/
SELECT id, name, form_id, DATE(updated_at) as date
FROM wp_frm_items
WHERE user_id = 11 && form_id=9
ORDER BY date ASC
"DESC" stands for descending but you need ascending order ("ASC").
To decompile APK Use APKTool.
You can learn how APKTool works on http://www.decompileandroid.com/ or by reading the documentation.
Up to C# 7.0, there was no way to do this short of defining your own type.
There is a very easy to use package available in PyPI that handles exactly that: django-related-admin. You can also see the code in GitHub.
Using this, what you want to achieve is as simple as:
class PersonAdmin(RelatedFieldAdmin):
list_display = ['book__author',]
Both links contain full details of installation and usage so I won't paste them here in case they change.
Just as a side note, if you're already using something other than model.Admin
(e.g. I was using SimpleHistoryAdmin
instead), you can do this: class MyAdmin(SimpleHistoryAdmin, RelatedFieldAdmin)
.
I solved a similar problem I had with scrollbar this way:
First disable vertical scrollbar by setting it's:
overflow-y: hidden;
Then make a div with fixed position with a height equal to the screen height and make it's width thin to look like scrollbar. This div should be vertically scroll-able. Now inside this div make another div with the height of your document (with all it's contents). Now all you need to do is to add an onScroll function to the container div and scroll body as the div scrolls. Here's the code:
HTML:
<div onscroll="OnScroll(this);" style="width:18px; height:100%; overflow-y: auto; position: fixed; top: 0; right: 0;">
<div id="ScrollDiv" style="width:28px; height:100%; overflow-y: auto;">
</div>
</div>
Then in your page load event add this:
JS:
$( document ).ready(function() {
var body = document.body;
var html = document.documentElement;
var height = Math.max( body.scrollHeight, body.offsetHeight, html.clientHeight, html.scrollHeight, html.offsetHeight);
document.getElementById('ScrollDiv').style.height = height + 'px';
});
function OnScroll(Div) {
document.body.scrollTop = Div.scrollTop;
}
Now scrolling the div works just like scrolling the body while body has no scrollbar.
You get the error because if
can only evaluate a logical
vector of length 1.
Maybe you miss the difference between &
(|
) and &&
(||
). The shorter version works element-wise and the longer version uses only the first element of each vector, e.g.:
c(TRUE, TRUE) & c(TRUE, FALSE)
# [1] TRUE FALSE
# c(TRUE, TRUE) && c(TRUE, FALSE)
[1] TRUE
You don't need the if
statement at all:
mut1 <- trip$Ref.y=='G' & trip$Variant.y=='T'|trip$Ref.y=='C' & trip$Variant.y=='A'
trip[mut1, "mutType"] <- "G:C to T:A"
The URI RFC (of which URLs are a subset) doesn't define a maximum length, however, it does recommend that the hostname part of the URI (if applicable) not exceed 255 characters in length:
URI producers should use names that conform to the DNS syntax, even when use of DNS is not immediately apparent, and should limit these names to no more than 255 characters in length.
As noted in other posts though, some browsers have a practical limitation on the length of a URL.
I have similar scenario where I need to add filters based on the user input and I chain the where clause.
Here is the sample code.
var votes = db.Votes.Where(r => r.SurveyID == surveyId);
if (fromDate != null)
{
votes = votes.Where(r => r.VoteDate.Value >= fromDate);
}
if (toDate != null)
{
votes = votes.Where(r => r.VoteDate.Value <= toDate);
}
votes = votes.Take(LimitRows).OrderByDescending(r => r.VoteDate);
Fedora/Cent Os same trouble when used yum install and interrupt it with Ctrl+Z.
Use this command:
sudo cat /var/cache/dnf/*pid
if there any pid, you can manually remove it:
sudo nano /var/cache/dnf/*pid
crtl+x followed by Y and Enter to exit nano editor (you can use any editor you want to open).
If after, delete some tmp files that may still be there:
sudo systemd-tmpfiles --remove dnf.conf
Just go to the SQL Server Management Studio -> Tools -> Options -> Designer; and Uncheck the option "prevent saving changes that require table re-creation".
A jar file is a zip archive. You can extract it using 7zip (a great simple tool to open archives). You can also change its extension to zip and use whatever to unzip the file.
Now you have your class file. There is no easy way to edit class file, because class files are binaries (you won't find source code in there. maybe some strings, but not java code). To edit your class file you can use a tool like classeditor.
You have all the strings your class is using hard-coded in the class file. So if the only thing you would like to change is some strings you can do it without using classeditor.
You could search for the corresponding key or you could "invert" the dictionary, but considering how you use it, it would be best if you just iterated over key/value pairs in the first place, which you can do with items()
. Then you have both directly in variables and don't need a lookup at all:
for key, value in PIX0.items():
NUM = input("What is the Resolution of %s?" % key)
if NUM == value:
You can of course use that both ways then.
Or if you don't actually need the dictionary for something else, you could ditch the dictionary and have an ordinary list of pairs.
read this...
Portable HttpClient for .NET Framework and Windows Phone
see paragraph Using HttpClient on .NET Framework 4.0 or Windows Phone 7.5 http://blogs.msdn.com/b/bclteam/archive/2013/02/18/portable-httpclient-for-net-framework-and-windows-phone.aspx
ReadOnly :The value will be initialized only once from the constructor of the class.
const: can be initialized in any function but only once
$userRecord = Model::where([['email','=',$email],['password','=', $password]])->first();
or
$userRecord = self::where([['email','=',$email],['password','=', $password]])->first();
I` think this condition is better then 2 where. Its where condition array in array of where conditions;
If you use notepad++, do a "replace" with extended search mode to find \t and replace with four spaces.
If you are trying to do basic auth, you can try this:
const username = ''
const password = ''
const token = Buffer.from(`${username}:${password}`, 'utf8').toString('base64')
const url = 'https://...'
const data = {
...
}
axios.post(url, data, {
headers: {
'Authorization': `Basic ${token}`
},
})
This worked for me. Hope that helps
Just use !important
it will help to override
background:none !important;
Although it is said to be a bad practice, !important
can be useful for utility classes, you just need to use it responsibly, check this: When Using important is the right choice
I think this should work,
a = numpy.arange(0,27.,3).reshape(3,3)
a /= a.sum(axis=1)[:,numpy.newaxis]
Here is what is going on.
First, the only global variables Python really has are module-scoped variables. You cannot make a variable that is truly global; all you can do is make a variable in a particular scope. (If you make a variable inside the Python interpreter, and then import other modules, your variable is in the outermost scope and thus global within your Python session.)
All you have to do to make a module-global variable is just assign to a name.
Imagine a file called foo.py, containing this single line:
X = 1
Now imagine you import it.
import foo
print(foo.X) # prints 1
However, let's suppose you want to use one of your module-scope variables as a global inside a function, as in your example. Python's default is to assume that function variables are local. You simply add a global
declaration in your function, before you try to use the global.
def initDB(name):
global __DBNAME__ # add this line!
if __DBNAME__ is None: # see notes below; explicit test for None
__DBNAME__ = name
else:
raise RuntimeError("Database name has already been set.")
By the way, for this example, the simple if not __DBNAME__
test is adequate, because any string value other than an empty string will evaluate true, so any actual database name will evaluate true. But for variables that might contain a number value that might be 0, you can't just say if not variablename
; in that case, you should explicitly test for None
using the is
operator. I modified the example to add an explicit None
test. The explicit test for None
is never wrong, so I default to using it.
Finally, as others have noted on this page, two leading underscores signals to Python that you want the variable to be "private" to the module. If you ever do an import * from mymodule
, Python will not import names with two leading underscores into your name space. But if you just do a simple import mymodule
and then say dir(mymodule)
you will see the "private" variables in the list, and if you explicitly refer to mymodule.__DBNAME__
Python won't care, it will just let you refer to it. The double leading underscores are a major clue to users of your module that you don't want them rebinding that name to some value of their own.
It is considered best practice in Python not to do import *
, but to minimize the coupling and maximize explicitness by either using mymodule.something
or by explicitly doing an import like from mymodule import something
.
EDIT: If, for some reason, you need to do something like this in a very old version of Python that doesn't have the global
keyword, there is an easy workaround. Instead of setting a module global variable directly, use a mutable type at the module global level, and store your values inside it.
In your functions, the global variable name will be read-only; you won't be able to rebind the actual global variable name. (If you assign to that variable name inside your function it will only affect the local variable name inside the function.) But you can use that local variable name to access the actual global object, and store data inside it.
You can use a list
but your code will be ugly:
__DBNAME__ = [None] # use length-1 list as a mutable
# later, in code:
if __DBNAME__[0] is None:
__DBNAME__[0] = name
A dict
is better. But the most convenient is a class instance, and you can just use a trivial class:
class Box:
pass
__m = Box() # m will contain all module-level values
__m.dbname = None # database name global in module
# later, in code:
if __m.dbname is None:
__m.dbname = name
(You don't really need to capitalize the database name variable.)
I like the syntactic sugar of just using __m.dbname
rather than __m["DBNAME"]
; it seems the most convenient solution in my opinion. But the dict
solution works fine also.
With a dict
you can use any hashable value as a key, but when you are happy with names that are valid identifiers, you can use a trivial class like Box
in the above.
I like the answer from 30thh using Iterators
from Guava. However, from some frameworks I get null instead of an empty array, and Iterators.forArray(array)
does not handle that well. So I came up with this helper method, which you can call with Iterator<String> it = emptyIfNull(array);
public static <F> UnmodifiableIterator<F> emptyIfNull(F[] array) {
if (array != null) {
return Iterators.forArray(array);
}
return new UnmodifiableIterator<F>() {
public boolean hasNext() {
return false;
}
public F next() {
return null;
}
};
}
To add on to Andrea's solution, if you are passing an array of JSONs for instance
[
{"name":"value"},
{"name":"value2"}
]
Then you will need to set up the Spring Boot Controller like so:
@RequestMapping(
value = "/process",
method = RequestMethod.POST)
public void process(@RequestBody Map<String, Object>[] payload)
throws Exception {
System.out.println(payload);
}
Most Easy way typecast string number to integer
number=89
number=int(89)
On SourceTree for Mac, right click the files you want to discard (in the Files in the working tree list), and choose Reset.
On SourceTree for Windows, right click the files you want to discard (in the Working Copy Changes list), and choose Discard.
On git, you'd simply do:
git reset --hard
to discard changes made to versioned files;
git clean -xdf
to erase new (untracked) files, including ignored ones (the x
option). d
is to also remove untracked directories and f
to force.
import java.util.List;
import java.util.stream.Stream;
class Main {
public static void main(String[] args) {
// Create a stream of strings from list of strings
Stream<String> myStreamOfStrings = List.of("lala", "foo", "bar").stream();
// Convert stream to array by using toArray method
String[] myArrayOfStrings = myStreamOfStrings.toArray(String[]::new);
// Print results
for (String string : myArrayOfStrings) {
System.out.println(string);
}
}
}
Try it out online: https://repl.it/@SmaMa/Stream-to-array
echo $line | tr " " "\n"
gives the output similar to those of most of the answers above; without using loops.
In your case, you also mention ll=<...output...>
,
so, (given that I don't know much python and assuming you need to assign output to a variable),
ll=`echo $line | tr " " "\n"`
should suffice (remember to echo "$ll"
instead of echo $ll
)
If you really need to be sure that now()
has the same value you can run two queries (that will answer to your second question too, in that case you are asking to update last_monitor = to last_update
but last_update
hasn't been updated yet)
you could do something like:
mysql> update table set last_update=now() where id=1;
mysql> update table set last_monitor = last_update where id=1;
anyway I think that mysql is clever enough to ask for now()
only once per query.
Here's a 2020 answer - if you don't need to support the older .xls format (so pre 2003) you could use either:
or
Pros :
Cons:
Disclaimer: I am the author of LightweightExcelReader and ExcelToEnumerable
I don't think it guarantees the order of calling logger.log(res);
Actually, it does. That statement is executed before the resolve
call.
Any suggestions?
Lots. The most important is your use of the create-promise-manually antipattern - just do only
promiseWhile(…, function() {
return db.getUser(email)
.then(function(res) {
logger.log(res);
count++;
});
})…
Second, that while
function could be simplified a lot:
var promiseWhile = Promise.method(function(condition, action) {
if (!condition()) return;
return action().then(promiseWhile.bind(null, condition, action));
});
Third, I would not use a while
loop (with a closure variable) but a for
loop:
var promiseFor = Promise.method(function(condition, action, value) {
if (!condition(value)) return value;
return action(value).then(promiseFor.bind(null, condition, action));
});
promiseFor(function(count) {
return count < 10;
}, function(count) {
return db.getUser(email)
.then(function(res) {
logger.log(res);
return ++count;
});
}, 0).then(console.log.bind(console, 'all done'));
The above answers summarize the role of getters and setters better than I could, however I did want to add that your code should ideally be structured to reduce the use of pure getters and setters, i.e. those without complex constructions, validation, and so forth, as they break encapsulation. This doesn't mean you can't ever use them (stivlo's answer shows an example of a good use of getters and setters), just try to minimize how often you use them.
The problem is that getters and setters can act as a workaround for direct access of private data. Private data is called private because it's not meant to be shared with other objects; it's meant as a representation of the object's state. Allowing other objects to access an object's private fields defeats the entire purpose of setting it private in the first place. Moreover, you introduce coupling for every getter or setter you write. Consider this, for example:
private String foo;
public void setFoo(String bar) {
this.foo = bar;
}
What happens if, somewhere down the road, you decide you don't need foo anymore, or you want to make it an integer? Every object that uses the setFoo method now needs to be changed along with foo.
Image.fromarray -> returns an image object
from PIL import Image
import numpy as np
PIL_image = Image.fromarray(np.uint8(numpy_image)).convert('RGB')
PIL_image = Image.fromarray(numpy_image.astype('uint8'), 'RGB')
Not sure about elegant, but this ought to be pretty readable at least. For a sources.list it's fine to read all the lines before hand, for something larger you might want to change "in place" while looping through it.
#!/usr/bin/env python
# Open file for reading and writing
with open("sources.list", "r+") as sources_file:
# Read all the lines
lines = sources_file.readlines()
# Rewind and truncate
sources_file.seek(0)
sources_file.truncate()
# Loop through the lines, adding them back to the file.
for line in lines:
if line.startswith("# deb"):
sources_file.write(line[2:])
else:
sources_file.write(line)
EDIT: Use with
-statement for better file-handling. Also forgot to rewind before truncate before.
Declare @date1 date = '2016-01-01'
,@date2 date = '2016-03-31'
,@date_index date
Declare @calender table (D date)
SET @date_index = @date1
WHILE @date_index<=@date2
BEGIN
INSERT INTO @calender
SELECT @date_index
SET @date_index = dateadd(day,1,@date_index)
IF @date_index>@date2
Break
ELSE
Continue
END
It could also be possible that you have created the "Products" in your login schema and you were trying to execute the same in a different schema (probably dbo)
Steps to resolve this issue
1)open the management studio 2) Locate the object in the explorer and identify the schema under which your object is? ( it is the text before your object name ). In the image below its the "dbo" and my object name is action status
if you see it like "yourcompanydoamin\yourloginid" then you should you can modify the permission on that specific schema and not any other schema.
you may refer to "Ownership and User-Schema Separation in SQL Server"
working example:
Connection con = DriverManager.getConnection("jdbc:mysql://localhost:3306/your_db_name?autoReconnect=true&useSSL=false", "root", "root");
call like this it will work.
Did you try passwd -d root
? Most likely, this will do what you want.
You can also manually edit /etc/shadow
: (Create a backup copy. Be sure that you can log even if you mess up, for example from a rescue system.) Search for "root". Typically, the root entry looks similar to
root:$X$SK5xfLB1ZW:0:0...
There, delete the second field (everything between the first and second colon):
root::0:0...
Some systems will make you put an asterisk (*) in the password field instead of blank, where a blank field would allow no password (CentOS 8 for example)
root:*:0:0...
Save the file, and try logging in as root. It should skip the password prompt. (Like passwd -d
, this is a "no password" solution. If you are really looking for a "blank password", that is "ask for a password, but accept if the user just presses Enter", look at the manpage of mkpasswd
, and use mkpasswd
to create the second field for the /etc/shadow.)
In order to use local gem repository in a Rails project, follow the steps below:
Check if your gem folder is a git repository (the command is executed in the gem folder)
git rev-parse --is-inside-work-tree
Getting repository path (the command is executed in the gem folder)
git rev-parse --show-toplevel
Setting up a local override for the rails application
bundle config local.GEM_NAME /path/to/local/git/repository
where GEM_NAME
is the name of your gem and /path/to/local/git/repository
is the output of the command in point 2
In your application Gemfile
add the following line:
gem 'GEM_NAME', :github => 'GEM_NAME/GEM_NAME', :branch => 'master'
Running bundle install
should give something like this:
Using GEM_NAME (0.0.1) from git://github.com/GEM_NAME/GEM_NAME.git (at /path/to/local/git/repository)
where GEM_NAME
is the name of your gem and /path/to/local/git/repository
from point 2
Finally, run bundle list
, not gem list
and you should see something like this:
GEM_NAME (0.0.1 5a68b88)
where GEM_NAME
is the name of your gem
A few important cases I am observing using:
Rails 4.0.2
ruby 2.0.0p247 (2013-06-27 revision 41674) [x86_64-linux]
Ubuntu 13.10
RubyMine 6.0.3
RubyMine
is not showing local gems as an external library. More information about the bug can be found here and herestop/start
the rails serverIf I am changing the version
of the gem, stopping/starting
the Rails server gives me an error. In order to fix it, I am specifying the gem version in the rails application Gemfile
like this:
gem 'GEM_NAME', '0.0.2', :github => 'GEM_NAME/GEM_NAME', :branch => 'master'
CSS 3
divContainer input[type="text"] {
width:150px;
}
CSS2 add a class "text" to the text inputs then in your css
.divContainer.text{
width:150px;
}
If you're like me and you just want to do path-based lookups, but don't care about real XPath, lodash's _.get()
can work. Example from lodash docs:
var object = { 'a': [{ 'b': { 'c': 3 } }] };
_.get(object, 'a[0].b.c');
// ? 3
_.get(object, ['a', '0', 'b', 'c']);
// ? 3
_.get(object, 'a.b.c', 'default');
// ? 'default'
If your Linux system supports it, clock_gettime(CLOCK_MONOTONIC) should be a high resolution timer that is unaffected by system date changes (e.g. NTP daemons).
In order to override setter
and getter
for swift variables use the below given code
var temX : Int?
var x: Int?{
set(newX){
temX = newX
}
get{
return temX
}
}
We need to keep the value of variable in a temporary variable, since trying to access the same variable whose getter/setter is being overridden will result in infinite loops.
We can invoke the setter simply like this
x = 10
Getter will be invoked on firing below given line of code
var newVar = x
Why Map.Entry
? I guess something like a key-value pair is fit for the case.
Use java.util.AbstractMap.SimpleImmutableEntry
or java.util.AbstractMap.SimpleEntry
You can try this:
import subprocess
import sys
process = subprocess.Popen(
cmd, stdout=subprocess.PIPE, stderr=subprocess.PIPE
)
while True:
out = process.stdout.read(1)
if out == '' and process.poll() != None:
break
if out != '':
sys.stdout.write(out)
sys.stdout.flush()
If you use readline instead of read, there will be some cases where the input message is not printed. Try it with a command the requires an inline input and see for yourself.
for those looking for a DESC ... this seems to work --sort=-
ty for the formatting, new to this ...my eyes are loosing some of it's bloodshot
git for-each-ref --format='%(color:cyan)%(authordate:format:%m/%d/%Y %I:%M %p) %(align:25,left)%(color:yellow)%(authorname)%(end) %(color:reset)%(refname:strip=3)' --sort=-authordate refs/remotes
further ref: https://stackoverflow.com/a/5188364/10643471
The C++ ? General ? Additional Include Directories parameter is for listing directories where the compiler will search for header files.
You need to tell the linker where to look for libraries to link to. To access this setting, right-click on the project name in the Solution Explorer window, then Properties ? Linker ? General ? Additional Library Directories. Enter <boost_path>\stage\lib
here (this is the path where the libraries are located if you build Boost using default options).
Its a really old thread, but here is my take on it. Rather than 2 different clauses, one greater than and less than. I use this below syntax for selecting records from A date. If you want a date range then previous answers are the way to go.
SELECT * FROM TABLE_NAME WHERE
DATEDIFF(DAY, DATEADD(DAY, X , CURRENT_TIMESTAMP), <column_name>) = 0
In the above case X will be -1 for yesterday's records
Its acctualy possible ;-)
# not pep8 compatible^
sam = ['Sam',]
try: print('hello',sam) if sam[0] != 'harry' else rais
except: pass
You can do very ugly stuff in python like:
def o(s):return''.join([chr(ord(n)+(13if'Z'<n<'n'or'N'>n else-13))if n.isalpha()else n for n in s])
which is function for rot13/cesa encryption in one line with 99 characters.
I'm using tesseract OCR engine with TessNet2 (a C# wrapper - http://www.pixel-technology.com/freeware/tessnet2/).
Some basic code:
using tessnet2;
...
Bitmap image = new Bitmap(@"u:\user files\bwalker\2849257.tif");
tessnet2.Tesseract ocr = new tessnet2.Tesseract();
ocr.SetVariable("tessedit_char_whitelist", "0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz.,$-/#&=()\"':?"); // Accepted characters
ocr.Init(@"C:\Users\bwalker\Documents\Visual Studio 2010\Projects\tessnetWinForms\tessnetWinForms\bin\Release\", "eng", false); // Directory of your tessdata folder
List<tessnet2.Word> result = ocr.DoOCR(image, System.Drawing.Rectangle.Empty);
string Results = "";
foreach (tessnet2.Word word in result)
{
Results += word.Confidence + ", " + word.Text + ", " + word.Left + ", " + word.Top + ", " + word.Bottom + ", " + word.Right + "\n";
}
To fix a problem, in my case: I checked Git folder under c:\program files\Git. I didn't find git.exe, so delete the Git folder and install it again. Declare them in the environment variables as shown above. the problem will be solved.
Yes, you want to use tee
:
tee - read from standard input and write to standard output and files
Just pipe your command to tee and pass the file as an argument, like so:
exec 1 | tee ${LOG_FILE}
exec 2 | tee ${LOG_FILE}
This both prints the output to the STDOUT and writes the same output to a log file. See man tee
for more information.
Note that this won't write stderr to the log file, so if you want to combine the two streams then use:
exec 1 2>&1 | tee ${LOG_FILE}
When you reinstall the server its identity changes, and you'll start to get this message. Ssh has no way of knowing whether you've changed the server it connects to, or a server-in-the-middle has been added to your network to sniff on all your communications - so it brings this to your attention.
Simply remove the key from known_hosts by deleting the relevant entry:
sed '4d' -i /var/lib/sss/pubconf/known_hosts
The 4d
is on the account of Offending RSA ...known_hosts:4
Your question implies that you're building the INSERT statement up by concatenating strings together. I suggest that this is a poor choice as it leaves you open to SQL injection attacks if the strings are derived from user input. A better choice is to use parameter markers and to bind the values to the markers. If you search for Oracle parameter markers
you'll probably find some information for your specific implementation technology (e.g. C# and ADO, Java and JDBC, Ruby and RubyDBI, etc).
Share and enjoy.
In case, like me, none of the above worked for you, I figured out a very stupid solution.
I'm using a HTC One X on a 2011 Macbook Pro. I just disabled NFC in Settings > Wireless & Networks > More > NFC and viola! Working normally.
Remove all breakpoints and re-add them.
This answer is based on this excellent answer by 18446744073709551615. Their solution, though helpful, does not size the image icon with the surrounding text. It also doesn't set the icon colour to that of the surrounding text.
The solution below takes a white, square icon and makes it fit the size and colour of the surrounding text.
public class TextViewWithImages extends TextView {
private static final String DRAWABLE = "drawable";
/**
* Regex pattern that looks for embedded images of the format: [img src=imageName/]
*/
public static final String PATTERN = "\\Q[img src=\\E([a-zA-Z0-9_]+?)\\Q/]\\E";
public TextViewWithImages(Context context, AttributeSet attrs, int defStyle) {
super(context, attrs, defStyle);
}
public TextViewWithImages(Context context, AttributeSet attrs) {
super(context, attrs);
}
public TextViewWithImages(Context context) {
super(context);
}
@Override
public void setText(CharSequence text, BufferType type) {
final Spannable spannable = getTextWithImages(getContext(), text, getLineHeight(), getCurrentTextColor());
super.setText(spannable, BufferType.SPANNABLE);
}
private static Spannable getTextWithImages(Context context, CharSequence text, int lineHeight, int colour) {
final Spannable spannable = Spannable.Factory.getInstance().newSpannable(text);
addImages(context, spannable, lineHeight, colour);
return spannable;
}
private static boolean addImages(Context context, Spannable spannable, int lineHeight, int colour) {
final Pattern refImg = Pattern.compile(PATTERN);
boolean hasChanges = false;
final Matcher matcher = refImg.matcher(spannable);
while (matcher.find()) {
boolean set = true;
for (ImageSpan span : spannable.getSpans(matcher.start(), matcher.end(), ImageSpan.class)) {
if (spannable.getSpanStart(span) >= matcher.start()
&& spannable.getSpanEnd(span) <= matcher.end()) {
spannable.removeSpan(span);
} else {
set = false;
break;
}
}
final String resName = spannable.subSequence(matcher.start(1), matcher.end(1)).toString().trim();
final int id = context.getResources().getIdentifier(resName, DRAWABLE, context.getPackageName());
if (set) {
hasChanges = true;
spannable.setSpan(makeImageSpan(context, id, lineHeight, colour),
matcher.start(),
matcher.end(),
Spannable.SPAN_EXCLUSIVE_EXCLUSIVE
);
}
}
return hasChanges;
}
/**
* Create an ImageSpan for the given icon drawable. This also sets the image size and colour.
* Works best with a white, square icon because of the colouring and resizing.
*
* @param context The Android Context.
* @param drawableResId A drawable resource Id.
* @param size The desired size (i.e. width and height) of the image icon in pixels.
* Use the lineHeight of the TextView to make the image inline with the
* surrounding text.
* @param colour The colour (careful: NOT a resource Id) to apply to the image.
* @return An ImageSpan, aligned with the bottom of the text.
*/
private static ImageSpan makeImageSpan(Context context, int drawableResId, int size, int colour) {
final Drawable drawable = context.getResources().getDrawable(drawableResId);
drawable.mutate();
drawable.setColorFilter(colour, PorterDuff.Mode.MULTIPLY);
drawable.setBounds(0, 0, size, size);
return new ImageSpan(drawable, ImageSpan.ALIGN_BOTTOM);
}
}
How to use:
Simply embed references to the desired icons in the text. It doesn't matter whether the text is set programatically through textView.setText(R.string.string_resource);
or if it's set in xml.
To embed a drawable icon named example.png, include the following string in the text: [img src=example/]
.
For example, a string resource might look like this:
<string name="string_resource">This [img src=example/] is an icon.</string>
I figured it out, and it's actually pretty straight forward.
Set your variable:
$image1 = "img/products/image1.jpg";
Then ceate a cell, position it, then rather than setting where the image is, use the variable you created above with the following:
$this->Cell( 40, 40, $pdf->Image($image1, $pdf->GetX(), $pdf->GetY(), 33.78), 0, 0, 'L', false );
Now the cell will move up and down with content if other cells around it move.
Hope this helps others in the same boat.
The JavaScript style names are WebkitTransformOrigin
and WebkitTransform
element.style.webkitTransform = "rotate(-2deg)";
Check the DOM extension reference for WebKit here.
Try to change #include <gl/glut.h>
to #include "gl/glut.h"
in Visual Studio 2013.
In C++11 you can. A note beforehand: Don't new
the array, there's no need for that.
First, string[] strArray
is a syntax error, that should either be string* strArray
or string strArray[]
. And I assume that it's just for the sake of the example that you don't pass any size parameter.
#include <string>
void foo(std::string* strArray, unsigned size){
// do stuff...
}
template<class T>
using alias = T;
int main(){
foo(alias<std::string[]>{"hi", "there"}, 2);
}
Note that it would be better if you didn't need to pass the array size as an extra parameter, and thankfully there is a way: Templates!
template<unsigned N>
void foo(int const (&arr)[N]){
// ...
}
Note that this will only match stack arrays, like int x[5] = ...
. Or temporary ones, created by the use of alias
above.
int main(){
foo(alias<int[]>{1, 2, 3});
}
Use ==
.
Sometimes, on some python implementations, by coincidence, integers from -5 to 256 will work with is
(in CPython implementations for instance). But don't rely on this or use it in real programs.
The code below is the simplest solution:
Bitmap bt = new Bitmap("imageFilePath");
for (int y = 0; y < bt.Height; y++)
{
for (int x = 0; x < bt.Width; x++)
{
Color c = bt.GetPixel(x, y);
int r = c.R;
int g = c.G;
int b = c.B;
int avg = (r + g + b) / 3;
bt.SetPixel(x, y, Color.FromArgb(avg,avg,avg));
}
}
bt.Save("d:\\out.bmp");
I couldn't just use the <xsl:text>
</xsl:text>
approach because if I format the XML file using XSLT the entity will disappear. So I had to use a slightly more round about approach using variables
<xsl:variable name="nl" select="' '"/>
<xsl:template match="/">
<xsl:value-of select="$nl" disable-output-escaping="no"/>
<xsl:apply-templates select="*"/>
</xsl:template>
In case anyone is getting back to this question and deciding to write their own middleware, this is a code sample for Django's new style middleware -
class CORSMiddleware(object):
def __init__(self, get_response):
self.get_response = get_response
def __call__(self, request):
response = self.get_response(request)
response["Access-Control-Allow-Origin"] = "*"
return response
Another example of direct code:
int n = 0;
if (a) n++;
if (b) n++;
if (c) n++;
return (n >= 2);
It's not the most succinct code, obviously.
Addendum
Another (slightly optimized) version of this:
int n = -2;
if (a) n++;
if (b) n++;
if (c) n++;
return (n >= 0);
This might run slightly faster, assuming that the comparison against 0 will use faster (or perhaps less) code than the comparison against 2.
Follow these steps to run your application on the device connected.
1. Change directories to the root of your Android project and execute:
ant debug
2. Make sure the Android SDK platform-tools/
directory is included in your PATH
environment variable, then execute: adb install bin/<*your app name*>-debug.apk
On your device, locate <*your app name*>
and open it.
Refer Running App
xlWorkSheet.Cells(1, 1).Borders(Excel.XlBordersIndex.xlEdgeRight).LineStyle = Excel.XlDataBarBorderType.xlDataBarBorderSolid
xlWorkSheet.Cells(1, 1).Borders(Excel.XlBordersIndex.xlEdgeLeft).LineStyle = Excel.XlDataBarBorderType.xlDataBarBorderSolid
xlWorkSheet.Cells(1, 1).Borders(Excel.XlBordersIndex.xlEdgeBottom).LineStyle = Excel.XlDataBarBorderType.xlDataBarBorderSolid
xlWorkSheet.Cells(1, 1).Borders(Excel.XlBordersIndex.xlEdgeTop).LineStyle = Excel.XlDataBarBorderType.xlDataBarBorderSolid
I came across this post while hunting down a solution for myself. By using chrome's inspector, I was able to determine that the striped color was being applied from the --bs-table-striped-color
tag.
overriding that tag in your css:
<style scoped>
table {
--bs-table-striped-color: #85d1ee;
}
</style>
Solution posted by Denys S. in the question post:
I quite messed it up with c to c++ conversion (basically env
variable stuff), but I got it working with the following code for C++:
#include <string.h>
#include <stdio.h>
#include <jni.h>
jstring Java_the_package_MainActivity_getJniString( JNIEnv* env, jobject obj){
jstring jstr = (*env)->NewStringUTF(env, "This comes from jni.");
jclass clazz = (*env)->FindClass(env, "com/inceptix/android/t3d/MainActivity");
jmethodID messageMe = (*env)->GetMethodID(env, clazz, "messageMe", "(Ljava/lang/String;)Ljava/lang/String;");
jobject result = (*env)->CallObjectMethod(env, obj, messageMe, jstr);
const char* str = (*env)->GetStringUTFChars(env,(jstring) result, NULL); // should be released but what a heck, it's a tutorial :)
printf("%s\n", str);
return (*env)->NewStringUTF(env, str);
}
And next code for java methods:
public class MainActivity extends Activity {
private static String LIB_NAME = "thelib";
static {
System.loadLibrary(LIB_NAME);
}
/** Called when the activity is first created. */
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
TextView tv = (TextView) findViewById(R.id.textview);
tv.setText(this.getJniString());
}
// please, let me live even though I used this dark programming technique
public String messageMe(String text) {
System.out.println(text);
return text;
}
public native String getJniString();
}
int average_in_int = ( (Double) Math.ceil( sum/count ) ).intValue();
Encountered the same problem. I was doing something like:
connect 'jdbc:derby://localhost:1527/~/databases/db1'
Replacing the path with the absolute path fixed this problem:
connect 'jdbc:derby://localhost:1527//Users/ayush99/databases/db1'
.
In summary: Avoid using ~
or any such variables in the path of existing database.
As far as I know, transitions currently work in Safari, Chrome, Firefox, Opera and Internet Explorer 10+.
This should produce a fade effect for you in these browsers:
a {_x000D_
background-color: #FF0;_x000D_
}_x000D_
_x000D_
a:hover {_x000D_
background-color: #AD310B;_x000D_
-webkit-transition: background-color 1000ms linear;_x000D_
-ms-transition: background-color 1000ms linear;_x000D_
transition: background-color 1000ms linear;_x000D_
}
_x000D_
<a>Navigation Link</a>
_x000D_
Note: As pointed out by Gerald in the comments, if you put the transition on the a
, instead of on a:hover
it will fade back to the original color when your mouse moves away from the link.
This might come in handy, too: CSS Fundamentals: CSS 3 Transitions
As APC rightly pointed out, your start_date column appears to be a TIMESTAMP but it could be a TIMESTAMP WITH LOCAL TIMEZONE or TIMESTAMP WITH TIMEZONE datatype too. These could well influence any queries you were doing on the data if your database server was in a different timezone to yourself. However, let's keep this simple and assume you are in the same timezone as your server. First, to give you the confidence, check that the start_date is a TIMESTAMP data type.
Use the SQLPlus DESCRIBE command (or the equivalent in your IDE) to verify this column is a TIMESTAMP data type.
eg
DESCRIBE mytable
Should report :
Name Null? Type
----------- ----- ------------
NAME VARHAR2(20)
START_DATE TIMESTAMP
If it is reported as a Type = TIMESTAMP then you can query your date ranges with simplest TO_TIMESTAMP date conversion, one which requires no argument (or picture).
We use TO_TIMESTAMP to ensure that any index on the START_DATE column is considered by the optimizer. APC's answer also noted that a function based index could have been created on this column and that would influence the SQL predicate but we cannot comment on that in this query. If you want to know how to find out what indexes have been applied to table, post another question and we can answer that separately.
So, assuming there is an index on start_date, which is a TIMESTAMP datatype and you want the optimizer to consider it, your SQL would be :
select * from mytable where start_date between to_timestamp('15-JAN-10') AND to_timestamp('17-JAN-10')+.9999999
+.999999999 is very close to but isn't quite 1 so the conversion of 17-JAN-10 will be as close to midnight on that day as possible, therefore you query returns both rows.
The database will see the BETWEEN as from 15-JAN-10 00:00:00:0000000 to 17-JAN-10 23:59:59:99999 and will therefore include all dates from 15th,16th and 17th Jan 2010 whatever the time component of the timestamp.
Hope that helps.
Dazzer
Somehow all examples, while work well, are overcomplicated:
new Array()
, which is an overkill (and an overhead) for a simple associative array (AKA dictionary).new Object()
. It works fine, but why all this extra typing?This question is tagged "beginner", so let's make it simple.
The über-simple way to use a dictionary in JavaScript or "Why doesn't JavaScript have a special dictionary object?":
// Create an empty associative array (in JavaScript it is called ... Object)
var dict = {}; // Huh? {} is a shortcut for "new Object()"
// Add a key named fred with value 42
dict.fred = 42; // We can do that because "fred" is a constant
// and conforms to id rules
// Add a key named 2bob2 with value "twins!"
dict["2bob2"] = "twins!"; // We use the subscript notation because
// the key is arbitrary (not id)
// Add an arbitrary dynamic key with a dynamic value
var key = ..., // Insanely complex calculations for the key
val = ...; // Insanely complex calculations for the value
dict[key] = val;
// Read value of "fred"
val = dict.fred;
// Read value of 2bob2
val = dict["2bob2"];
// Read value of our cool secret key
val = dict[key];
Now let's change values:
// Change the value of fred
dict.fred = "astra";
// The assignment creates and/or replaces key-value pairs
// Change the value of 2bob2
dict["2bob2"] = [1, 2, 3]; // Any legal value can be used
// Change value of our secret key
dict[key] = undefined;
// Contrary to popular beliefs, assigning "undefined" does not remove the key
// Go over all keys and values in our dictionary
for (key in dict) {
// A for-in loop goes over all properties, including inherited properties
// Let's use only our own properties
if (dict.hasOwnProperty(key)) {
console.log("key = " + key + ", value = " + dict[key]);
}
}
Deleting values is easy too:
// Let's delete fred
delete dict.fred;
// fred is removed, but the rest is still intact
// Let's delete 2bob2
delete dict["2bob2"];
// Let's delete our secret key
delete dict[key];
// Now dict is empty
// Let's replace it, recreating all original data
dict = {
fred: 42,
"2bob2": "twins!"
// We can't add the original secret key because it was dynamic, but
// we can only add static keys
// ...
// oh well
temp1: val
};
// Let's rename temp1 into our secret key:
if (key != "temp1") {
dict[key] = dict.temp1; // Copy the value
delete dict.temp1; // Kill the old key
} else {
// Do nothing; we are good ;-)
}
directory size using php filesize and RecursiveIteratorIterator.
This works with any platform which is having php 5 or higher version.
/**
* Get the directory size
* @param string $directory
* @return integer
*/
function dirSize($directory) {
$size = 0;
foreach(new RecursiveIteratorIterator(new RecursiveDirectoryIterator($directory)) as $file){
$size+=$file->getSize();
}
return $size;
}
Requirements files use an expanded pip format, which is only useful if you need to complement your setup.py
with stronger constraints, for example specifying the exact urls some of the dependencies must come from, or the output of pip freeze
to freeze the entire package set to known-working versions. If you don't need the extra constraints, use only a setup.py
. If you feel like you really need to ship a requirements.txt
anyway, you can make it a single line:
.
It will be valid and refer exactly to the contents of the setup.py
that is in the same directory.
You have to use the android:hint attribute
<EditText
android:id="@+id/message"
android:hint="<<Your placeholder>>"
/>
In Android Studio, you can switch from XML -> Design View and click on the Component in the layout, the EditText field in this case. This will show all the applicable attributes for that GUI component. This will be handy when you don't know about all the attributes that are there.
You would be surprised to see that EditText has more than 140 attributes for customization.
Assuming you use LinearLayoutManager
in your RecyclerView, then you can pass true
as third argument in the LinearLayoutManager constructor.
For example:
mRecyclerView.setLayoutManager(new LinearLayoutManager(this, LinearLayoutManager.HORIZONTAL, true));
If you are using the StaggeredGridLayoutManager
, then you can use the setReverseLayout
method it provides.
import java.io.*;
class swaping
{
public static void main(String args[])
{
String name="premkumarg";
int len=name.length();
char[] c = name.toCharArray();
for(int i=0;i<len-1;i=i+2)
{
char temp= c[i];
c[i]=c[i+1];
c[i+1]=temp;
}
System.out.println("Swapping string is: ");
System.out.println(c);
}
}
The comparison needs to be evaluated fully inside EL ${ ... }
, not outside.
<c:if test="${values.type eq 'object'}">
As to the docs, those ${}
things are not JSTL, but EL (Expression Language) which is a whole subject at its own. JSTL (as every other JSP taglib) is just utilizing it. You can find some more EL examples here.
<c:if test="#{bean.booleanValue}" />
<c:if test="#{bean.intValue gt 10}" />
<c:if test="#{bean.objectValue eq null}" />
<c:if test="#{bean.stringValue ne 'someValue'}" />
<c:if test="#{not empty bean.collectionValue}" />
<c:if test="#{not bean.booleanValue and bean.intValue ne 0}" />
<c:if test="#{bean.enumValue eq 'ONE' or bean.enumValue eq 'TWO'}" />
By the way, unrelated to the concrete problem, if I guess your intent right, you could also just call Object#getClass()
and then Class#getSimpleName()
instead of adding a custom getter.
<c:forEach items="${list}" var="value">
<c:if test="${value['class'].simpleName eq 'Object'}">
<!-- code here -->
</c:if>
</c:forEeach>
I like this one:
very slick with only this as HTML and the rest CSS3 that is backwards compatible (although it will have less eyecandy)
Edit Added code below, but taken directly from the page above, all credit to that author
.meter {_x000D_
height: 20px;_x000D_
/* Can be anything */_x000D_
position: relative;_x000D_
background: #555;_x000D_
-moz-border-radius: 25px;_x000D_
-webkit-border-radius: 25px;_x000D_
border-radius: 25px;_x000D_
padding: 10px;_x000D_
-webkit-box-shadow: inset 0 -1px 1px rgba(255, 255, 255, 0.3);_x000D_
-moz-box-shadow: inset 0 -1px 1px rgba(255, 255, 255, 0.3);_x000D_
box-shadow: inset 0 -1px 1px rgba(255, 255, 255, 0.3);_x000D_
}_x000D_
_x000D_
.meter>span {_x000D_
display: block;_x000D_
height: 100%;_x000D_
-webkit-border-top-right-radius: 8px;_x000D_
-webkit-border-bottom-right-radius: 8px;_x000D_
-moz-border-radius-topright: 8px;_x000D_
-moz-border-radius-bottomright: 8px;_x000D_
border-top-right-radius: 8px;_x000D_
border-bottom-right-radius: 8px;_x000D_
-webkit-border-top-left-radius: 20px;_x000D_
-webkit-border-bottom-left-radius: 20px;_x000D_
-moz-border-radius-topleft: 20px;_x000D_
-moz-border-radius-bottomleft: 20px;_x000D_
border-top-left-radius: 20px;_x000D_
border-bottom-left-radius: 20px;_x000D_
background-color: #f1a165;_x000D_
background-image: -webkit-gradient(linear, left top, left bottom, color-stop(0, #f1a165), color-stop(1, #f36d0a));_x000D_
background-image: -webkit-linear-gradient(top, #f1a165, #f36d0a);_x000D_
background-image: -moz-linear-gradient(top, #f1a165, #f36d0a);_x000D_
background-image: -ms-linear-gradient(top, #f1a165, #f36d0a);_x000D_
background-image: -o-linear-gradient(top, #f1a165, #f36d0a);_x000D_
-webkit-box-shadow: inset 0 2px 9px rgba(255, 255, 255, 0.3), inset 0 -2px 6px rgba(0, 0, 0, 0.4);_x000D_
-moz-box-shadow: inset 0 2px 9px rgba(255, 255, 255, 0.3), inset 0 -2px 6px rgba(0, 0, 0, 0.4);_x000D_
position: relative;_x000D_
overflow: hidden;_x000D_
}
_x000D_
<div class="meter">_x000D_
<span style="width: 33%"></span>_x000D_
<!-- I use my viewmodel in MVC to calculate the progress and then use @Model.progress to place it in my HTML with Razor -->_x000D_
</div>
_x000D_
This is similar to the difference between
SELECT * FROM table_name and SELECT 1 FROM table_name.
If you do
SELECT 1 FROM table_name
it will give you the number 1 for each row in the table. So yes count(*)
and count(1)
will provide the same results as will count(8)
or count(column_name)
like:
$('#Create .myClass, #Edit .myClass').plugin({
options: here
});
You can specify any number of selectors to combine into a single result. This multiple expression combinator is an efficient way to select disparate elements. The order of the DOM elements in the returned jQuery object may not be identical, as they will be in document order. An alternative to this combinator is the .add() method.
Since there's no way to just pass this "comma-separated list of varchars", I assume some other system is generating them. If you can modify your generator slightly, it should be workable. Rather than separating by commas, you separate by union all select
, and need to prepend a select
also to the list. Finally, you need to provide aliases for the table and column in you subselect:
Create Table #IMEIS(
imei varchar(15)
)
INSERT INTO #IMEIS(imei)
SELECT * FROM (select '012251000362843' union all select '012251001084784' union all select '012251001168744' union all
select '012273007269862' union all select '012291000080227' union all select '012291000383084' union all
select '012291000448515') t(Col)
SELECT * from #IMEIS
DROP TABLE #IMEIS;
But noting your comment to another answer, about having 5000 entries to add. I believe the 256 tables per select limitation may kick in with the above "union all" pattern, so you'll still need to do some splitting of these values into separate statements.
To disable inputting password:
sudo visudo
Then add a new line like below and save then:
# The user can run installer as root without inputting password
yourusername ALL=(root) NOPASSWD: /usr/sbin/installer
Then you run installer without password:
sudo installer -pkg ...
\n
This means insert a newline in the text at this point.
Just example
System.out.println("hello\nworld");
Output:
hello
world
The only difference between files that causing the issue is the 8th byte of file
CA FE BA BE 00 00 00 33 - Java 7
vs.
CA FE BA BE 00 00 00 32 - Java 6
Setting -XX:-UseSplitVerifier
resolves the issue. However, the cause of this issue is https://bugs.eclipse.org/bugs/show_bug.cgi?id=339388
unzip name_of_the_zipfile.zip
worked fine for me, after installing the zip
package from Info-ZIP:
sudo apt install -y zip
The above installation is for Debian/Ubuntu/Mint. For other Linux distros, see the second reference below.
References:
http://infozip.sourceforge.net/
https://www.tecmint.com/install-zip-and-unzip-in-linux/
Each application pool in IIs creates its own secure user folder with FULL read/write permission by default under c:\users. Open up your Users folder and see what application pool folders are there, right click, and check their rights for the application pool virtual account assigned. You should see your application pool account added already with read/write access assigned to its root and subfolders.
So that type of file storage access is automatically done and you should be able to write whatever you like there in the app pools user account folders without changing anything. That's why virtual user accounts for each application pool were created.
Add async: false
to your attributes list. This forces the javascript thread to wait until the return value is retrieved before moving on. Obviously, you wouldn't want to do this in every circumstance, but if a value is needed before proceeding, this will do it.
str.substring(0, str.lastIndexOf('.'))
I was using Write #1 "Print my Line" instead I tried Print #1, "Print my Line" and it give me all the data without default Quote(")
Dim strFile_Path As String
strFile_Path = ThisWorkbook.Path & "\" & "XXXX" & VBA.Format(VBA.Now, "dd-MMM-yyyy hh-mm") & ".txt"
Open strFile_Path For Output As #1
Dim selectedFeature As String
For counter = 7 To maxNumberOfColumn
selectedFeature = "X"
Print #1, selectedFeature
'Write #1, selectedFeature
Next counter
Close #1
This worked for me. Might want to try editing virtual machine settings:
Here is a working code which I wrote some time ago
// Return all subsets of a given set
#include<iostream>
#include<cstdio>
#include<algorithm>
#include<vector>
#include<string>
#include<sstream>
#include<cstring>
#include<climits>
#include<cmath>
#include<iterator>
#include<set>
#include<map>
#include<stack>
#include<queue>
using namespace std;
typedef vector<int> vi;
typedef vector<long long> vll;
typedef vector< vector<int> > vvi;
typedef vector<string> vs;
vvi get_subsets(vi v, int size)
{
if(size==0) return vvi(1);
vvi subsets = get_subsets(v,size-1);
vvi more_subsets(subsets);
for(typeof(more_subsets.begin()) it = more_subsets.begin(); it !=more_subsets.end(); it++)
{
(*it).push_back(v[size-1]);
}
subsets.insert(subsets.end(), (more_subsets).begin(), (more_subsets).end());
return subsets;
}
int main()
{
int ar[] = {1,2,3};
vi v(ar , ar+int(sizeof(ar)/sizeof(ar[0])));
vvi subsets = get_subsets(v,int((v).size()));
for(typeof(subsets.begin()) it = subsets.begin(); it !=subsets.end(); it++)
{
printf("{ ");
for(typeof((*it).begin()) it2 = (*it).begin(); it2 !=(*it).end(); it2++)
{
printf("%d,",*it2 );
}
printf(" }\n");
}
printf("Total subsets = %d\n",int((subsets).size()) );
}
Could it be that your file is not ISO-8859-15 encoded? You should be able to check with the file command:
file YourFile.txt
Also, you can use iconv without providing the encoding of the original file:
iconv -t UTF-8 YourFile.txt
foreach($test_package_data as $key=>$data ) {
$category_detail_arr = $test_package_data[$key]['category_detail'];
foreach( $category_detail_arr as $i=>$value ) {
$test_package_data[$key]['category_detail'][$i]['count'] = $some_value;////<----Here
}
}
Try to use ES6 syntax of set timeout. Normal javascript setTimeout() won't work in react js
setTimeout(
() => this.setState({ position: 100 }),
5000
);
You did it the wrong way around. You are meant to reset first, to unstage the file, then checkout, to revert local changes.
Try this:
$ git reset foo/bar.txt
$ git checkout foo/bar.txt
you can use this way
editText.setOnEditorActionListener((v, actionId, event) -> {
if (actionId == EditorInfo.IME_ACTION_DONE) {
// Do some things
return true;
}
return false;
});
you can see list of action there.
For example:
IME_ACTION_GO
IME_ACTION_SEARCH
IME_ACTION_SEND
in my case there was only on issue, just put "gulp":"gulp" in the script portion, of package.json, and then use command npm run gulp.
There is probably a faster way:
df %>%
group_by(id) %>%
arrange(stopSequence) %>%
filter(row_number()==1 | row_number()==n())
MDN has a good example on the use of setTimeout preserving "this".
Like the following:
function doSomething() {
// use 'this' to handle the selected element here
}
$(".someSelector").each(function() {
setTimeout(doSomething.bind(this), 0);
});
ftps -a -z -e:on -pfxfile:"S-PID.p12" -pfxpwfile:"S-PID.p12.pwd" -user:<S-PID number> -s:script <RemoteServerName> 2121
S-PID.p12 => certificate file name ;
S-PID.p12.pwd => certificate password file name ;
RemoteServerName => abcd123 ;
2121 => port number ;
ftps => command is part of ftps client software ;
From the spring docs
Spring can be easily integrated into any Java-based web framework. All you need to do is to declare the ContextLoaderListener in your web.xml and use a contextConfigLocation to set which context files to load.
The <context-param>
:
<context-param>
<param-name>contextConfigLocation</param-name>
<param-value>/WEB-INF/applicationContext*.xml</param-value>
</context-param>
<listener>
<listener-class>
org.springframework.web.context.ContextLoaderListener
</listener-class>
</listener>
You can then use the WebApplicationContext to get a handle on your beans.
WebApplicationContext ctx = WebApplicationContextUtils.getRequiredWebApplicationContext(servlet.getServletContext());
SomeBean someBean = (SomeBean) ctx.getBean("someBean");
See http://static.springsource.org/spring/docs/2.5.x/api/org/springframework/web/context/support/WebApplicationContextUtils.html for more info
A nice practical use of this is if you want to make your own HtmlHelper
extensions. For example, I hate trying to remember the <link>
tag syntax, so I've created my own extension method to make a <link>
tag:
<Extension()> _
Public Function CssBlock(ByVal html As HtmlHelper, ByVal src As String, ByVal Optional ByVal htmlAttributes As Object = Nothing) As MvcHtmlString
Dim tag = New TagBuilder("link")
tag.MergeAttribute("type", "text/css")
tag.MergeAttribute("rel", "stylesheet")
tag.MergeAttribute("href", src)
tag.MergeAttributes(New RouteValueDictionary(htmlAttributes))
Dim result = tag.ToString(TagRenderMode.Normal)
Return MvcHtmlString.Create(result)
End Function
I could have returned String
from this method, but if I had the following would break:
<%: Html.CssBlock(Url.Content("~/sytles/mysite.css")) %>
With MvcHtmlString
, using either <%: ... %>
or <%= ... %>
will both work correctly.
If you want to extract the hours, minutes and seconds, try this:
String inputDate = "12:00:00";
String[] split = inputDate.split(":");
int hours = Integer.valueOf(split[0]);
int minutes = Integer.valueOf(split[1]);
int seconds = Integer.valueOf(split[2]);
Minimal runnable POSIX C examples
To make things more concrete, I want to exemplify a few extreme cases of time
with some minimal C test programs.
All programs can be compiled and run with:
gcc -ggdb3 -o main.out -pthread -std=c99 -pedantic-errors -Wall -Wextra main.c
time ./main.out
and have been tested in Ubuntu 18.10, GCC 8.2.0, glibc 2.28, Linux kernel 4.18, ThinkPad P51 laptop, Intel Core i7-7820HQ CPU (4 cores / 8 threads), 2x Samsung M471A2K43BB1-CRC RAM (2x 16GiB).
sleep
Non-busy sleep does not count in either user
or sys
, only real
.
For example, a program that sleeps for a second:
#define _XOPEN_SOURCE 700
#include <stdlib.h>
#include <unistd.h>
int main(void) {
sleep(1);
return EXIT_SUCCESS;
}
outputs something like:
real 0m1.003s
user 0m0.001s
sys 0m0.003s
The same holds for programs blocked on IO becoming available.
For example, the following program waits for the user to enter a character and press enter:
#include <stdio.h>
#include <stdlib.h>
int main(void) {
printf("%c\n", getchar());
return EXIT_SUCCESS;
}
And if you wait for about one second, it outputs just like the sleep example something like:
real 0m1.003s
user 0m0.001s
sys 0m0.003s
For this reason time
can help you distinguish between CPU and IO bound programs: What do the terms "CPU bound" and "I/O bound" mean?
Multiple threads
The following example does niters
iterations of useless purely CPU-bound work on nthreads
threads:
#define _XOPEN_SOURCE 700
#include <assert.h>
#include <inttypes.h>
#include <pthread.h>
#include <stdint.h>
#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
uint64_t niters;
void* my_thread(void *arg) {
uint64_t *argument, i, result;
argument = (uint64_t *)arg;
result = *argument;
for (i = 0; i < niters; ++i) {
result = (result * result) - (3 * result) + 1;
}
*argument = result;
return NULL;
}
int main(int argc, char **argv) {
size_t nthreads;
pthread_t *threads;
uint64_t rc, i, *thread_args;
/* CLI args. */
if (argc > 1) {
niters = strtoll(argv[1], NULL, 0);
} else {
niters = 1000000000;
}
if (argc > 2) {
nthreads = strtoll(argv[2], NULL, 0);
} else {
nthreads = 1;
}
threads = malloc(nthreads * sizeof(*threads));
thread_args = malloc(nthreads * sizeof(*thread_args));
/* Create all threads */
for (i = 0; i < nthreads; ++i) {
thread_args[i] = i;
rc = pthread_create(
&threads[i],
NULL,
my_thread,
(void*)&thread_args[i]
);
assert(rc == 0);
}
/* Wait for all threads to complete */
for (i = 0; i < nthreads; ++i) {
rc = pthread_join(threads[i], NULL);
assert(rc == 0);
printf("%" PRIu64 " %" PRIu64 "\n", i, thread_args[i]);
}
free(threads);
free(thread_args);
return EXIT_SUCCESS;
}
Then we plot wall, user and sys as a function of the number of threads for a fixed 10^10 iterations on my 8 hyperthread CPU:
From the graph, we see that:
for a CPU intensive single core application, wall and user are about the same
for 2 cores, user is about 2x wall, which means that the user time is counted across all threads.
user basically doubled, and while wall stayed the same.
this continues up to 8 threads, which matches my number of hyperthreads in my computer.
After 8, wall starts to increase as well, because we don't have any extra CPUs to put more work in a given amount of time!
The ratio plateaus at this point.
Note that this graph is only so clear and simple because the work is purely CPU-bound: if it were memory bound, then we would get a fall in performance much earlier with less cores because the memory accesses would be a bottleneck as shown at What do the terms "CPU bound" and "I/O bound" mean?
Quickly checking that wall < user is a simple way to determine that a program is multithreaded, and the closer that ratio is to the number of cores, the more effective the parallelization is, e.g.:
Sys heavy work with sendfile
The heaviest sys workload I could come up with was to use the sendfile
, which does a file copy operation on kernel space: Copy a file in a sane, safe and efficient way
So I imagined that this in-kernel memcpy
will be a CPU intensive operation.
First I initialize a large 10GiB random file with:
dd if=/dev/urandom of=sendfile.in.tmp bs=1K count=10M
Then run the code:
#define _GNU_SOURCE
#include <assert.h>
#include <fcntl.h>
#include <stdlib.h>
#include <sys/sendfile.h>
#include <sys/stat.h>
#include <sys/types.h>
#include <unistd.h>
int main(int argc, char **argv) {
char *source_path, *dest_path;
int source, dest;
struct stat stat_source;
if (argc > 1) {
source_path = argv[1];
} else {
source_path = "sendfile.in.tmp";
}
if (argc > 2) {
dest_path = argv[2];
} else {
dest_path = "sendfile.out.tmp";
}
source = open(source_path, O_RDONLY);
assert(source != -1);
dest = open(dest_path, O_WRONLY | O_CREAT | O_TRUNC, S_IRUSR | S_IWUSR);
assert(dest != -1);
assert(fstat(source, &stat_source) != -1);
assert(sendfile(dest, source, 0, stat_source.st_size) != -1);
assert(close(source) != -1);
assert(close(dest) != -1);
return EXIT_SUCCESS;
}
which gives basically mostly system time as expected:
real 0m2.175s
user 0m0.001s
sys 0m1.476s
I was also curious to see if time
would distinguish between syscalls of different processes, so I tried:
time ./sendfile.out sendfile.in1.tmp sendfile.out1.tmp &
time ./sendfile.out sendfile.in2.tmp sendfile.out2.tmp &
And the result was:
real 0m3.651s
user 0m0.000s
sys 0m1.516s
real 0m4.948s
user 0m0.000s
sys 0m1.562s
The sys time is about the same for both as for a single process, but the wall time is larger because the processes are competing for disk read access likely.
So it seems that it does in fact account for which process started a given kernel work.
Bash source code
When you do just time <cmd>
on Ubuntu, it use the Bash keyword as can be seen from:
type time
which outputs:
time is a shell keyword
So we grep source in the Bash 4.19 source code for the output string:
git grep '"user\b'
which leads us to execute_cmd.c function time_command
, which uses:
gettimeofday()
and getrusage()
if both are availabletimes()
otherwiseall of which are Linux system calls and POSIX functions.
GNU Coreutils source code
If we call it as:
/usr/bin/time
then it uses the GNU Coreutils implementation.
This one is a bit more complex, but the relevant source seems to be at resuse.c and it does:
wait3
call if that is availabletimes
and gettimeofday
otherwiseYou can set content view (or design) of an activity. For example you can do it like this too :
public void onCreate(Bundle savedinstanceState) {
super.onCreate(savedinstanceState);
Button testButon = new Button(this);
setContentView(testButon);
}
Also watch this tutorial too.
Thanks to @jarno I know about the -z option and I found out that when using GNU grep with the -P option, matching against \n
is possible. :)
Example:
grep -zoP 'foo\n\K.*'<<<$'foo\nbar'
Prints bar
Edited ZygD's answer for python 3.x.:
import re
import urllib.request
import string
url1 = input("Please enter a URL from Tunein Radio: ");
request = urllib.request.Request(url1);
response = urllib.request.urlopen(request);
raw_file = response.read().decode('utf-8');
API_key = re.findall(r"StreamUrl\":\"(.*?),\"",raw_file);
#print API_key;
#print "The API key is: " + API_key[0];
request2 = urllib.request.Request(str(API_key[0]));
response2 = urllib.request.urlopen(request2);
key_content = response2.read().decode('utf-8');
raw_stream_url = re.findall(r"Url\": \"(.*?)\"",key_content);
bandwidth = re.findall(r"Bandwidth\":(.*?),", key_content);
reliability = re.findall(r"lity\":(.*?),", key_content);
isPlaylist = re.findall(r"HasPlaylist\":(.*?),",key_content);
codec = re.findall(r"MediaType\": \"(.*?)\",", key_content);
tipe = re.findall(r"Type\": \"(.*?)\"", key_content);
total = 0
for element in raw_stream_url:
total = total + 1
i = 0
print ("I found " + str(total) + " streams.");
for element in raw_stream_url:
print ("Stream #" + str(i + 1));
print ("Stream stats:");
print ("Bandwidth: " + str(bandwidth[i]) + " kilobytes per second.");
print ("Reliability: " + str(reliability[i]) + "%");
print ("HasPlaylist: " + str(isPlaylist[i]));
print ("Stream codec: " + str(codec[i]));
print ("This audio stream is " + tipe[i].lower());
print ("Pure streaming URL: " + str(raw_stream_url[i]));
i = i + 1
input("Press enter to close")
You can use the following command to rename the column of any table in SQL Server:
exec sp_rename 'TableName.OldColumnName', 'New colunmName'
You can't create arrays with a generic component type.
Create an array of an explicit type, like Object[]
, instead. You can then cast this to PCB[]
if you want, but I don't recommend it in most cases.
PCB[] res = (PCB[]) new Object[list.size()]; /* Not type-safe. */
If you want type safety, use a collection like java.util.List<PCB>
instead of an array.
By the way, if list
is already a java.util.List
, you should use one of its toArray()
methods, instead of duplicating them in your code. This doesn't get your around the type-safety problem though.
I solved it in two steps. To rename folder using mv command you need rights to do so, if you don't have right you can follow these steps. Suppose you want to rename casesensitive to Casesensitive.
Step 1: Rename the folder (casesensitive) to something else from explorer. eg Rename casesensitive to folder1 commit this change.
Step 2: Rename this newly named folder(folder1) to the expected case sensitive name (Casesensitive ) eg. Rename folder1 to Casesensitive. Commit this change.
You are experiencing this issue for two reasons.
When performing a join in JPQL you must ensure that an underlying association between the entities attempting to be joined exists. In your example, you are missing an association between the User and Area entities. In order to create this association we must add an Area field within the User class and establish the appropriate JPA Mapping. I have attached the source for User below. (Please note I moved the mappings to the fields)
User.java
@Entity
@Table(name="user")
public class User {
@Id
@GeneratedValue(strategy=GenerationType.AUTO)
@Column(name="iduser")
private Long idUser;
@Column(name="user_name")
private String userName;
@OneToOne()
@JoinColumn(name="idarea")
private Area area;
public Long getIdUser() {
return idUser;
}
public void setIdUser(Long idUser) {
this.idUser = idUser;
}
public String getUserName() {
return userName;
}
public void setUserName(String userName) {
this.userName = userName;
}
public Area getArea() {
return area;
}
public void setArea(Area area) {
this.area = area;
}
}
Once this relationship is established you can reference the area object in your @Query declaration. The query specified in your @Query annotation must follow proper syntax, which means you should omit the on clause. See the following:
@Query("select u.userName from User u inner join u.area ar where ar.idArea = :idArea")
While looking over your question I also made the relationship between the User and Area entities bidirectional. Here is the source for the Area entity to establish the bidirectional relationship.
Area.java
@Entity
@Table(name = "area")
public class Area {
@Id
@GeneratedValue(strategy=GenerationType.AUTO)
@Column(name="idarea")
private Long idArea;
@Column(name="area_name")
private String areaName;
@OneToOne(fetch=FetchType.LAZY, mappedBy="area")
private User user;
public Long getIdArea() {
return idArea;
}
public void setIdArea(Long idArea) {
this.idArea = idArea;
}
public String getAreaName() {
return areaName;
}
public void setAreaName(String areaName) {
this.areaName = areaName;
}
public User getUser() {
return user;
}
public void setUser(User user) {
this.user = user;
}
}
Easiest way:
param_a = 1
param_b = 2
result = param_a === param_b ? 'Same!' : 'Not same!'
since param_a
is not equal to param_b
then the result
's value will be Not same!
All pages of the resulting document will be scaled to that size. The resulting file size is nearly identical to the original PDF, so I conclude, that image resolutions/compressions are not changed.
Hints:
I am not sure whether the "Export as PDF" menu item is available by default or only if Adobe Acrobat is installed.
My first trial was to use Preview App and print (!) into a new PDF, but this leads to additional margins around the page content.
Just Check your webconfig file and remove this code :-
<dependentAssembly>
<assemblyIdentity name="itextsharp" publicKeyToken="8354ae6d2174ddca" culture="neutral" />
<bindingRedirect oldVersion="0.0.0.0-5.5.13.0" newVersion="5.5.13.0" />
</dependentAssembly>
For what you want I would've used
app.get('/fruit/:fruitName&:fruitColor', function(request, response) {
const name = request.params.fruitName
const color = request.params.fruitColor
});
or better yet
app.get('/fruit/:fruit', function(request, response) {
const fruit = request.params.fruit
console.log(fruit)
});
where fruit is a object. So in the client app you just call
https://mydomain.dm/fruit/{"name":"My fruit name", "color":"The color of the fruit"}
and as a response you should see:
// client side response
// { name: My fruit name, color:The color of the fruit}
You can do this with the Box component:
import Box from "@material-ui/core/Box";
...
<Box
display="flex"
justifyContent="center"
alignItems="center"
minHeight="100vh"
>
<YourComponent/>
</Box>
There are good answers here but let me address the more global point of adding action listener that listens to multiple buttons.
There are two popular approaches.
Using a Common Action Listener
You can get the source of the action in your actionPerformed(ActionEvent e)
implementation:
JButton button1, button2; //your button
@Override
public void actionPerformed(ActionEvent e) {
JButton actionSource = (JButton) e.getSource();
if(actionSource.equals(button1)){
// YOU BUTTON 1 CODE HERE
} else if (actionSource.equals(button2)) {
// YOU BUTTON 2 CODE HERE
}
}
Using ActionCommand
With this approach you setting the actionCommand
field of your button which later will allow you to use switch
:
button1.setActionCommand("actionName1");
button2.setActionCommand("actionName2");
And later:
@Override
public void actionPerformed(ActionEvent e) {
String actionCommand = ((JButton) e.getSource()).getActionCommand();
switch (actionCommand) {
case "actionName1":
// YOU BUTTON 1 CODE HERE
break;
case "actionName2":
// YOU BUTTON 2 CODE HERE
break;
}
}
Check out to learn more about JFrame Buttons, Listeners and Fields.
If you are looking for content from different domain this will do the trick:
$.ajax({
url:'http://www.corsproxy.com/' +
'en.wikipedia.org/wiki/Briarcliff_Manor,_New_York',
type:'GET',
success: function(data){
$('#content').html($(data).find('#firstHeading').html());
}
});
Querying a simple subquery sorted descending, followed by sorting on the same column ascending does the trick.
SELECT * FROM
(SELECT TOP 200 * FROM [table] t2 ORDER BY t2.[column] DESC) t1
ORDER BY t1.[column]
You could just nest the Text components with the required style. The style will be applied along with already defined style in the first Text component.
Example:
<Text style={styles.paragraph}>
Trouble singing in. <Text style={{fontWeight: "bold"}}> Resolve</Text>
</Text>
Maybe it's not really clean solution but it works:
try:
el.click()
except WebDriverException as e:
if 'Element is not clickable at point' in e.msg:
self.browser.execute_script(
'$("{sel}").click()'.format(sel=el_selector)
)
else:
raise
Ok, The Windows 10 BatchFile is done works just like I had hoped. First press the windows key and R. Type mmc and Enter. In File Add SnapIn>Got to a specific Website and add it to the list. Press OK in the tab, and on the left side console root menu double click your site. Once it opens Add it to favourites. That should place it in C:\Users\user\AppData\Roaming\Microsoft\StartMenu\Programs\Windows Administrative Tools. I made a shortcut of this to a folder on the desktop. Right click the Shortcut and view the properties. In the Shortcut tab of the Properties click advanced and check the Run as Administrator. The Start in Location is also on the Shortcuts Tab you can add that to your batch file if you need. The Batch I made is as follows
@echo off
title Manage SiteEnviro
color 0a
:Clock
cls
echo Date:%date% Time:%time%
pause
cls
c:\WINDOWS\System32\netstat
c:\WINDOWS\System32\netstat -an
goto Greeting
:Greeting
cls
echo Open ShellSite
pause
cls
goto Manage SiteEnviro
:Manage SiteEnviro
"C:\Users\user\AppData\Roaming\Microsoft\Start Menu\Programs\Administrative Tools\YourCustomSavedMMC.msc"
You need to make a shortcut when you save this as a bat file and in the properties>shortcuts>advanced enable administrator access, can also set a keybind there and change the icon if you like. I probably did not need :Clock. The netstat commands can change to setting a hosted network or anything you want including nothing. Can Canscade websites in 1 mmc console and have more than 1 favourite added into the batch file.
Go to
C:\Program Files\MySQL\MySQL Server 5.2\bin
then Open MySQLInstanceConfig file
then complete the wizard.
Click finish
Solve the problem
I think this is the best way to change the port number also.
It works for me
You are using a function, which is marked as deleted
.
Eg:
int doSomething( int ) = delete;
The =delete is a new feature of C++0x. It means the compiler should immediately stop compiling and complain "this function is deleted" once the user use such function.
If you see this error, you should check the function declaration for =delete
.
To know more about this new feature introduced in C++0x, check this out.
The Python documentation does explain it.
Tuples and lists are compared lexicographically using comparison of corresponding elements. This means that to compare equal, each element must compare equal and the two sequences must be of the same type and have the same length.
e.g.
ColorTranslator.ToHtml(Color.FromArgb(Color.Tomato.ToArgb()))
This can avoid the KnownColor trick.
I assume your game has a main loop, and all your sprites are in a list called sprites
.
In your main loop, get all events, and check for the MOUSEBUTTONDOWN
or MOUSEBUTTONUP
event.
while ... # your main loop
# get all events
ev = pygame.event.get()
# proceed events
for event in ev:
# handle MOUSEBUTTONUP
if event.type == pygame.MOUSEBUTTONUP:
pos = pygame.mouse.get_pos()
# get a list of all sprites that are under the mouse cursor
clicked_sprites = [s for s in sprites if s.rect.collidepoint(pos)]
# do something with the clicked sprites...
So basically you have to check for a click on a sprite yourself every iteration of the mainloop. You'll want to use mouse.get_pos() and rect.collidepoint().
Pygame does not offer event driven programming, as e.g. cocos2d does.
Another way would be to check the position of the mouse cursor and the state of the pressed buttons, but this approach has some issues.
if pygame.mouse.get_pressed()[0] and mysprite.rect.collidepoint(pygame.mouse.get_pos()):
print ("You have opened a chest!")
You'll have to introduce some kind of flag if you handled this case, since otherwise this code will print "You have opened a chest!" every iteration of the main loop.
handled = False
while ... // your loop
if pygame.mouse.get_pressed()[0] and mysprite.rect.collidepoint(pygame.mouse.get_pos()) and not handled:
print ("You have opened a chest!")
handled = pygame.mouse.get_pressed()[0]
Of course you can subclass Sprite
and add a method called is_clicked
like this:
class MySprite(Sprite):
...
def is_clicked(self):
return pygame.mouse.get_pressed()[0] and self.rect.collidepoint(pygame.mouse.get_pos())
So, it's better to use the first approach IMHO.
This is the hibernate.cfg.xml file to connect postgresql 9.5 and this is help to you basic configuration.
<?xml version='1.0' encoding='utf-8'?>
<!--
~ Hibernate, Relational Persistence for Idiomatic Java
~
~ License: GNU Lesser General Public License (LGPL), version 2.1 or later.
~ See the lgpl.txt file in the root directory or <http://www.gnu.org/licenses/lgpl-2.1.html>.
-->
<!DOCTYPE hibernate-configuration SYSTEM
"http://www.hibernate.org/dtd/hibernate-configuration-3.0.dtd">
<hibernate-configuration
>
<session-factory>
<!-- Database connection settings -->
<property name="connection.driver_class">org.postgresql.Driver</property>
<property name="connection.url">jdbc:postgresql://localhost:5433/hibernatedb</property>
<property name="connection.username">postgres</property>
<property name="connection.password">password</property>
<!-- JDBC connection pool (use the built-in) -->
<property name="connection.pool_size">1</property>
<!-- SQL dialect -->
<property name="hibernate.dialect">org.hibernate.dialect.PostgreSQLDialect</property>
<!-- Enable Hibernate's automatic session context management -->
<property name="current_session_context_class">thread</property>
<!-- Disable the second-level cache -->
<property name="cache.provider_class">org.hibernate.cache.internal.NoCacheProvider</property>
<!-- Echo all executed SQL to stdout -->
<property name="show_sql">true</property>
<!-- Drop and re-create the database schema on startup -->
<property name="hbm2ddl.auto">create</property>
<mapping class="com.waseem.UserDetails"/>
</session-factory>
</hibernate-configuration>
Make sure File Location should be under src/main/resources/hibernate.cfg.xml
std::string a = "Hello ";
a += "World";
The class.__stuff
naming convention lets the programmer know he isn't meant to access __stuff
from outside. The name mangling makes it unlikely anyone will do it by accident.
True, you still can work around this, it's even easier than in other languages (which BTW also let you do this), but no Python programmer would do this if he cares about encapsulation.
"searching": false, // Search Box will Be Disabled
"ordering": false, // Ordering (Sorting on Each Column)will Be Disabled
"info": true, // Will show "1 to n of n entries" Text at bottom
"lengthChange": false // Will Disabled Record number per page
To set Conditional Formatting for an ENTIRE ROW based on a single cell you must ANCHOR that single cell's column address with a "$", otherwise Excel will only get the first column correct. Why?
Because Excel is setting your Conditional Format for the SECOND column of your row based on an OFFSET of columns. For the SECOND column, Excel has now moved one column to the RIGHT of your intended rule cell, examined THAT cell, and has correctly formatted column two based on a cell you never intended.
Simply anchor the COLUMN portion of your rule cell's address with "$", and you will be happy
For example: You want any row of your table to highlight red if the last cell of that row does not equal 1.
Select the entire table (but not the headings) "Home" > "Conditional Formatting" > "Manage Rules..." > "New Rule" > "Use a formula to determine which cells to format"
Enter: "=$T3<>1" (no quotes... "T" is the rule cell's column, "3" is its row) Set your formatting Click Apply.
Make sure Excel has not inserted quotes into any part of your formula... if it did, Backspace/Delete them out (no arrow keys please).
Conditional Formatting should be set for the entire table.
In Javascript it is better to use screen.width
and screen.height
. These two values are available in all modern browsers. They give the real dimensions of the screen, even if the browser has been scaled down when the app fires up. window.innerWidth
changes when the browser is scaled down, which can't happen on mobile devices but can happen on PCs and laptops.
The values of screen.width
and screen.height
change when the mobile device flips between portrait and landscape modes, so it is possible to determine the mode by comparing the values. If screen.width
is greater than 1280px you're dealing with a PC or laptop.
You can construct an event listener in Javascript to detect when the two values are flipped. The portrait screen.width values to concentrate on are 320px (mainly iPhones), 360px (most other phones), 768px (small tablets) and 800px (regular tablets).