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How to close a Java Swing application from the code
...ing it with System.exit is a very bad idea).
The most common culprits are java.util.Timer and a custom Thread you've created. Both should be set to daemon or must be explicitly killed.
If you want to check for all active frames, you can use Frame.getFrames(). If all Windows/Frames are disposed of,...
How to maintain a Unique List in Java?
How to create a list of unique/distinct objects (no duplicates) in Java?
7 Answers
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What's the false operator in C# good for?
... NirNir
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Something like 'contains any' for Java set?
... @Xipo is right. Check grepcode.com/file/repository.grepcode.com/java/root/jdk/openjdk/…
– Lluis Martinez
Feb 23 '17 at 22:06
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How to replace a set of tokens in a Java String?
...table method String.format mentioned above is only available starting with Java 1.5 (which should be pretty standard nowadays, but you never know). Instead of that you might also use Java's class MessageFormat for replacing the placeholders.
It supports placeholders in the form '{number}', so your ...
“Conversion to Dalvik format failed with error 1” on external JAR
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Go to Project » Properties » Java Build Path » Libraries and remove all except the "Android X.Y" (in my case Android 1.5). click OK. Go to Project » Clean » Clean projects selected below » select your project and click OK. That should work.
It is al...
Android java.lang.VerifyError?
...Cat and see what's causing the verifyerror. It's probably some method in a java.lang class that is not supported on the android SDK level you are using (for instance, String.isEmpty()).
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Calling remove in foreach loop in Java [duplicate]
In Java, is it legal to call remove on a collection when iterating through the collection using a foreach loop? For instance:
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What's the purpose of META-INF?
In Java, you often see a META-INF folder containing some meta files. What is the purpose of this folder and what can I put there?
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Conversion from Long to Double in Java
...g to double conversion because long to double is a narrowing conversion in java.
Conversion from type double to type long requires a nontrivial translation from a 64-bit floating-point value to the 64-bit integer representation. Depending on the actual run-time value, information may be lost.
e.g...