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Why are we not to throw these exceptions?
...ly unspecific. You shouldn’t ever throw this exception because it simply does not contain any useful information. Calling code catching for exceptions couldn’t disambiguate the intentionally thrown exception (from your logic) from other system exceptions that are entirely undesired and point out...
How to use WeakReference in Java and Android development?
... think about using one whenever you need a reference to an object, but you don't want that reference to protect the object from the garbage collector. A classic example is a cache that you want to be garbage collected when memory usage gets too high (often implemented with WeakHashMap).
Be sure to...
Split long commands in multiple lines through Windows batch file
...plete line must not exceed the maximum line length of ~8192 characters (Windows XP, Windows Vista, and Windows 7).
echo Test1
echo one ^
two ^
three ^
four^
*
--- Output ---
Test1
one two three four*
echo Test2
echo one & echo two
--- Output ---
Test2
one
two
echo Test3
echo one & ^
ec...
Which “href” value should I use for JavaScript links, “#” or “javascript:void(0)”?
...to some using the return value of the function called like this:
function doSomething() {
//Some code
return false;
}
But then they forget to use return doSomething() in the onclick and just use doSomething().
A second reason for avoiding # is that the final return false; will not execut...
Swift performSelector:withObject:afterDelay: is unavailable [duplicate]
...spatchTime: dispatch_time_t = dispatch_time(DISPATCH_TIME_NOW, Int64(0.1 * Double(NSEC_PER_SEC)))
dispatch_after(dispatchTime, dispatch_get_main_queue(), {
// your function here
})
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SVN needs-lock 设置强制只读属性（官方资料） - 更多技术 - 清泛网 - 专注...
...on binary files and denies the commit if the property is not available (Windows only):
@echo off
set REPOS=%1
set TRANSACTION=%2
set SVNLOOK="c:\Program Files\Subversion\apache2.2\bin\svnlook.exe"
set TEMP=c:\temp
if exist %TEMP%\tempfile%2 del %TEMP%\tempfile%2
for /f "tokens=1,2...
PHP Get all subdirectories of a given directory
...swered Mar 26 '10 at 14:58
ghostdog74ghostdog74
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Difference between Convert.ToString() and .ToString()
...
Convert.ToString() handles null, while ToString() doesn't.
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Maven package/install without test (skip tests)
...rying to package my project. But, it automatically runs the tests previous do performing the packaging. The tests insert some content in the database. This is not what I want, I need to avoid running tests while package the application. Anybody knows how run the package with out test?
...
Count occurrences of a char in a string using Bash
... by $char and print the number of resulting fields minus 1.
If your shell does not support the <<< operator, use echo:
echo "${string}" | awk -F"${char}" '{print NF-1}'
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