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What is the Java string pool and how is “s” different from new String(“s”)? [duplicate]
...tring pool is the JVM's particular implementation of the concept of string interning:
In computer science, string interning
is a method of storing only one copy
of each distinct string value, which
must be immutable. Interning strings
makes some string processing tasks
more time- or sp...
How do I create and access the global variables in Groovy?
...Field
var1 = 'var1'
@Field String var2 = 'var2'
def var3 = 'var3'
void printVars() {
println var1
println var2
println var3 // This won't work, because not in script scope.
}
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Most lightweight way to create a random string and a random hexadecimal number
... Nice. Just generate a random number 30 hex digits long and print it out. Obvious when pointed out. Nice one.
– eemz
May 6 '10 at 17:50
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Detect Retina Display
...
@sickp's answer is correct. Just to make things easier, add this line into your Shared.pch file:
#define IS_RETINA ([[UIScreen mainScreen] respondsToSelector:@selector(displayLinkWithTarget:selector:)] && ([UIScreen mainScreen].scale >= 2.0))
Then in any file you can just do:
if(...
python plot normal distribution
...red Dec 11 '17 at 23:18
João QuintasJoão Quintas
42111 gold badge55 silver badges99 bronze badges
...
Error inflating when extending a class
... public GhostSurfaceCameraView(Context context, AttributeSet attrs, int defStyle) {
super(context, attrs, defStyle);
init();
}
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Split string with dot as delimiter
...e returning the actual file name. Instead I think it's better if you use:
int idx = filename.lastIndexOf('.');
return filename.subString(0, idx);
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The 3 different equals
...b Identical TRUE if $a is equal to $b, and they are of the same type. (introduced in PHP 4)
For more info on the need for == and ===, and situations to use each, look at the docs.
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Getting file names without extensions
...st<string> returnValue = new List<string>();
for (int i = 0; i < fi.Length; i++)
{
returnValue.Add(Path.GetFileNameWithoutExtension(fi[i].FullName));
}
return returnValue.ToArray<string>();
}
}
}
E...
How to use putExtra() and getExtra() for string data
...omeone please tell me how exactly to use getExtra() and putExtra() for intents? Actually I have a string variable, say str, which stores some string data. Now, I want to send this data from one activity to another activity.
...