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Create a string with n characters
...r;
/**
* Creates a string of spaces that is 'spaces' spaces long.
*
* @param spaces The number of spaces to add to the string.
*/
public String spaces( int spaces ) {
return CharBuffer.allocate( spaces ).toString().replace( '\0', ' ' );
}
Invoke using:
System.out.printf( "[%s]%n", spaces( ...
Converting java.util.Properties to HashMap
...ava.util.Map , And java.util.HashMap's constructor receives a Map type param. So, why must it be converted explicitly?
...
Spring 3 RequestMapping: Get path value
...h from a controller mapping. /controllerUrl/** => return matched **
* @param request incoming request.
* @return extracted path
*/
public static String extractPathFromPattern(final HttpServletRequest request){
String path = (String) request.getAttribute(
HandlerMapping.PATH_W...
How to set the text color of TextView in code?
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@Civilian: because the int param that the setXXXColor() methods require is taken as the actual ARGB value to use, NOT the value to lookup in the resources file. Strangely enough, the View class has both setBackgroundColor() and setBackgroundResource(),...
getting the ng-object selected with ng-change
...If Divyesh Rupawala's answer doesn't work (passing the current item as the parameter), then please see the onChanged() function in this Plunker. It's using this:
http://plnkr.co/edit/B5TDQJ
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Is it possible to specify a different ssh port when using rsync?
...f the command is -e 'ssh -p 2222' so you can use this with different rsync params
– Evan Donovan
Nov 21 '14 at 18:19
2
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What is the colon operator in Ruby?
...to identify things. In particular, it uses them as keys when naming method parameters and looking things up in hashes.
redirect_to :action => "edit", :id => params[:id]
You can think of symbols as string literals that are magically made into constants. Alternatively, you can consider th...
Increase heap size in Java
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You can increase the Heap Size by passing JVM parameters -Xms and -Xmx like below:
For Jar Files:
java -jar -Xms4096M -Xmx6144M jarFilePath.jar
For Java Files:
java -Xms4096M -Xmx6144M ClassName
The above parameters increase the InitialHeapSize (-Xms) to 4GB (409...
Merge two (or more) lists into one, in C# .NET
...an join them using Aggregate
public List<TType> Concat<TType>(params List<TType>[] lists)
{
var result = lists.Aggregate(new List<TType>(), (x, y) => x.Concat(y).ToList());
return result;
}
Hope this helps.
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How do you round to 1 decimal place in Javascript?
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Why the underscores for the params i.e (_float, _digits)? Feel free to just post a link where I can find the answer for myself. Thanks
– Shark Lasers
Mar 5 at 17:04
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