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On logout, clear Activity history stack, preventing “back” button from opening logged-in-only Activi
...f the history stack so that pressing the "back" button returns the user to Android's home screen.
18 Answers
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Overloading member access operators ->, .*
I understand most operator overloading, with the exception of the member access operators -> , .* , ->* etc.
5 An...
How to modify a global variable within a function in bash?
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When you use a command substitution (ie the $(...) construct), you are creating a subshell. Subshells inherit variables from their parent shells, but this only works one way - a subshell cannot modify the environment of its parent shell. Your v...
How do I choose between Semaphore and SemaphoreSlim?
... documentation states that the SemaphoreSlim is a lightweight alternative and doesn't use Windows Kernel semaphores. This resource states that the SemaphoreSlim is much faster. In what situations does the SemaphoreSlim make more sense over the Semaphore and vice versa?
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Adding n hours to a date in Java?
... found another example using days on StackOverflow, but still don't understand how to do it with hours.
15 Answers
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Regex to match string containing two names in any order
I need logical AND in regex.
8 Answers
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How to set the environmental variable LD_LIBRARY_PATH in linux
I have first executed the command: export LD_LIBRARY_PATH=/usr/local/lib
10 Answers
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Can Java 8 code be compiled to run on Java 7 JVM?
... code requires you to target a 1.8 VM. I just tried the new Java 8 release and tried compiling with -target 1.7 -source 1.8, and the compiler refuses:
$ javac Test -source 1.8 -target 1.7
javac: source release 1.8 requires target release 1.8
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Superscript in CSS only?
... be sure to read the other answers here, particularly those by paulmurray and cletus, for useful information.
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Difference between sampling and profiling in jVisualVM
VisualVM has two separate tabs for sampling and profiling. What is the difference between sampling and profiling in VisualVM?
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