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Can an int be null in Java?
...ect can be null, like Integer. Here's a basic example to show when you can test for null:
Integer data = check(Node root);
if ( data == null ) {
// do something
} else {
// do something
}
On the other hand, if check() is declared to return int, it can never be null and the whole if-else block ...
How do I remove all non alphanumeric characters from a string except dash?
...
in my testing, this technique was much faster. to be precise, it was just under 3 times faster than the Regex Replace technique.
– Dan
Aug 11 '11 at 15:49
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arrayfun can be significantly slower than an explicit loop in matlab. Why?
Consider the following simple speed test for arrayfun :
2 Answers
2
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append to url and refresh page
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this should work (not tested!)
var url = window.location.href;
if (url.indexOf('?') > -1){
url += '&param=1'
}else{
url += '?param=1'
}
window.location.href = url;
...
How to prevent a scrollview from scrolling to a webview after data is loaded?
... worked so perfectly I had trouble to believe it at first sight and had to test it again.
– YumeYume
Aug 19 '16 at 8:26
1
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Label Alignment in iOS 6 - UITextAlignment deprecated
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(Caveat: Being a member of the aforementioned steady-earth lovers, I have tested this with an old version, but not yet with iOS6.)
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read string from .resx file in C#
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Try this, works for me.. simple
Assume that your resource file name is "TestResource.resx", and you want to pass key dynamically then,
string resVal = TestResource.ResourceManager.GetString(dynamicKeyVal);
Add Namespace
using System.Resources;
...
How can I get screen resolution in java?
...d, and such a monitor can be identified by size, screen colors, etc.):
// Test if each monitor will support my app's window
// Iterate through each monitor and see what size each is
GraphicsEnvironment ge = GraphicsEnvironment.getLocalGraphicsEnvironment();
GraphicsDevice[] gs = ge.get...
How to add elements to an empty array in PHP?
...t';
//Numeric key
$cart[4] = $object;
//Text key (assoc)
$cart['key'] = 'test';
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How do I make my string comparison case insensitive?
... case folding character data, so this job is best delegated to a tried and tested third-party library.
That library is ICU, and here is how one could implement a utility for case-insensitive string comparison:
import com.ibm.icu.text.Normalizer2;
// ...
public static boolean equalsIgnoreCase(Cha...