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How do I fix "The expression of type List needs unchecked conversion…'?
...ast up front, you're "complying with the warranty terms" of Java generics: if a ClassCastException is raised, it will be associated with a cast in the source code, not an invisible cast inserted by the compiler.
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Declaring variables inside a switch statement [duplicate]
...u can't declare and assign variables inside a switch . But I'm wondering if the following is correct at throwing an error saying
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How can I get the last 7 characters of a PHP string?
... php docs:
string substr ( string $string , int $start [, int $length ] )
If start is negative, the returned string will start at the start'th character from the end of string.
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COUNT(*) vs. COUNT(1) vs. COUNT(pk): which is better? [duplicate]
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Use either COUNT(field) or COUNT(*), and stick with it consistently, and if your database allows COUNT(tableHere) or COUNT(tableHere.*), use that.
In short, don't use COUNT(1) for anything. It's a one-trick pony, which rarely does what you want, and in those rare cases is equivalent to count(*)...
'dragleave' of parent element fires when dragging over children elements
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If you don't need to bind events to the child elements, you can always use the pointer-events property.
.child-elements {
pointer-events: none;
}
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Application_Start not firing?
...(beta) application that I'm working on, and am having trouble figuring out if I'm doing something wrong, or if my Application_Start method in Global.asax.cs is in fact not firing when I try to debug the application.
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How can you check for a #hash in a URL using JavaScript?
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Simple:
if(window.location.hash) {
// Fragment exists
} else {
// Fragment doesn't exist
}
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Elevating process privilege programmatically?
...follows:
startInfo.Verb = "runas";
This will cause Windows to behave as if the process has been started from Explorer with the "Run as Administrator" menu command.
This does mean the UAC prompt will come up and will need to be acknowledged by the user: if this is undesirable (for example because...
launch sms application with an intent
... an activity with the following attributes in its intent filter in your manifest? <action android:name="android.intent.action.MAIN" /> <category android:name="android.intent.category.LAUNCHER" />
– jqpubliq
Mar 3 '10...
Copy files from one directory into an existing directory
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@CiroSantilli六四事件法轮功包卓轩 If you copy a directory, cp will create a directory and copy all the files into it. If you use the pretend folder called ".", which is the same as the directory holding it, the copy behaves this way. Let's say t1 contains a ...