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How to make Java honor the DNS Caching Timeout?
...TL from DNS response and to resolve the domain name again when cache times out. However, I couldn't figure out a way to do this in Java.
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Could not launch process launch failed: timed out waiting for app to launch
...instead of Developer one when running the app from Xcode. You may check it out your target --> Build Settings --> Code signing.
As @AndyDynn pointed out in his comment:
Make sure you do this on the "Target" build settings and not just the "Project" build settings.
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How do I analyze a program's core dump file with GDB when it has command-line parameters?
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But this doesn't work. The gdb output warning: core file may not match specified executable file. Failed to read a valid object file image from memory.
– Treper
Nov 29 '11 at 5:07
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Is there a common Java utility to break a list into batches?
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Check out Lists.partition(java.util.List, int) from Google Guava:
Returns consecutive sublists of a list, each of the same size (the final list may be smaller). For example, partitioning a list containing [a, b, c, d, e] with...
Getting the difference between two sets
... a predicate to write a utility method as:
// computes the difference without modifying the sets
public static <T> Set<T> differenceJava8(final Set<T> setOne, final Set<T> setTwo) {
Set<T> result = new HashSet<T>(setOne);
result.removeIf(setTwo::contain...
How to implement infinity in Java?
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double supports Infinity
double inf = Double.POSITIVE_INFINITY;
System.out.println(inf + 5);
System.out.println(inf - inf); // same as Double.NaN
System.out.println(inf * -1); // same as Double.NEGATIVE_INFINITY
prints
Infinity
NaN
-Infinity
note: Infinity - Infinity is Not A Number.
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Converting Long to Date in Java returns 1970
...ntréal, as the new day has begun in Europe but not yet in America.
System.out.println( "dateTimeParis: " + dateTimeParis );
System.out.println( "dateTimeUTC: " + dateTimeUtc );
System.out.println( "dateTimeMontréal: " + dateTimeMontréal );
When run.
dateTimeParis: 2008-09-01T02:00:00.000+02:00
d...
What causes a java.lang.ArrayIndexOutOfBoundsException and how do I prevent it?
What does ArrayIndexOutOfBoundsException mean and how do I get rid of it?
25 Answers
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Try-finally block prevents StackOverflowError
...try {
throw new Exception("TEST!");
} finally {
System.out.println("Finally");
}
You will find that the finally block executes before throwing an Exception up to the level above it. (Output:
Finally
Exception in thread "main" java.lang.Exception: TEST!
at te...
Best way to work with dates in Android SQLite [closed]
...allow you to query date ranges, it's standard so you don't have to worry about conversions etc etc. Storing dates as string is very limiting and I would really like to know who recommended this practice as a general rule.
– Krystian
Apr 17 '13 at 18:56
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