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Java EE web development, where do I start and what skills do I need? [closed]
...t thing with regard to JSP is the fact that writing plain Java code in JSP files using <% scriptlets %> is officially discouraged since 2003. See also How to avoid Java code in JSP files? So any tutorials which still cover scriptlets should be skipped as they will definitely take you into a do...
Using regular expressions to parse HTML: why not?
... will not work on every condition. It should be possible to present a HTML file that will be matched wrongly by any regular expression.
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Downloading jQuery UI CSS from Google's CDN
...or your users if your connection is decent and they don't already have the file cached locally.
– Drew Noakes
Jan 30 '11 at 10:15
120
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Intellij IDEA Java classes not auto compiling on save
...an use the EclipseMode plugin to make IDEA automatically compile the saved files.
For more tips see the "Migrating From Eclipse to IntelliJ IDEA" guide.
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Android: How to turn screen on and off programmatically?
...o, make sure you have the following permission in the AndroidManifewst.xml file:
<uses-permission android:name="android.permission.WAKE_LOCK" />
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Is a RelativeLayout more expensive than a LinearLayout?
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In a talk at Google I/O 2013 (Writing Custom Views for Android), Romain Guy clarified the misunderstanding that caused everyone to start using RelativeLayouts for everything. A RelativeLayout always has to do two measure passes. Overall it is negligible as long as your view hierarchy ...
How do I print to the debug output window in a Win32 app?
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Update
freopen is deprecated and may be unsafe. Use freopen_s instead:
FILE* fp;
AllocConsole();
freopen_s(&fp, "CONIN$", "r", stdin);
freopen_s(&fp, "CONOUT$", "w", stdout);
freopen_s(&fp, "CONOUT$", "w", stderr);
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Static class initializer in PHP
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// file Foo.php
class Foo
{
static function init() { /* ... */ }
}
Foo::init();
This way, the initialization happens when the class file is included. You can make sure this only happens when necessary (and only once) by usi...
How can I convert byte size into a human-readable format in Java?
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FileUtils.byteCountToDisplaySize(long size) would work if your project can depend on org.apache.commons.io.
JavaDoc for this method
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When to catch java.lang.Error?
... most can be handled. For example a ZipError occurs on reading corrupt zip files.
The most common errors are OutOfMemoryError and NoClassDefFoundError, which are both in most cases runtime problems.
For example:
int length = Integer.parseInt(xyz);
byte[] buffer = new byte[length];
can produce a...