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Switch on Enum in Java [duplicate]
Why can't you switch on an enum in Java? It seems simple enough to do and would make for some convenient code. Also this question could apply to String 's. You can switch on a char , but not a String ...?
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Hidden Features of Java
...Hidden Features of C# I wondered, What are some of the hidden features of Java?
100 Answers
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Can I pass parameters by reference in Java?
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Java is confusing because everything is passed by value. However for a parameter of reference type (i.e. not a parameter of primitive type) it is the reference itself which is passed by value, hence it appears to be pass-by-r...
Delete directories recursively in Java
Is there a way to delete entire directories recursively in Java?
26 Answers
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What does “Git push non-fast-forward updates were rejected” mean?
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VonCVonC
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How to make a Java thread wait for another thread's output?
I'm making a Java application with an application-logic-thread and a database-access-thread.
Both of them persist for the entire lifetime of the application and both need to be running at the same time (one talks to the server, one talks to the user; when the app is fully started, I need both of t...
How to limit setAccessible to only “legitimate” uses?
The more I learned about the power of java.lang.reflect.AccessibleObject.setAccessible , the more astonished I am at what it can do. This is adapted from my answer to the question ( Using reflection to change static final File.separatorChar for unit testing ).
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Is iterating ConcurrentHashMap values thread safe?
In javadoc for ConcurrentHashMap is the following:
5 Answers
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How to get Android crash logs?
...g due to uncaught exception
09-04 21:35:15.397: ERROR/AndroidRuntime(778): java.lang.RuntimeException: Unable to start activity ComponentInfo{com.dazlious.android.helloworld/com.dazlious.android.helloworld.main}: java.lang.ArrayIndexOutOfBoundsException
09-04 21:35:15.397: ERROR/AndroidRuntime(778):...
Function Pointers in Java
...he idea of function pointers from C++. Is there a similar functionality in Java? Given that pointers are somewhat absent, what is the best way about this? And to be clear, we're talking first class here.
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