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How to kill zombie process
...nate the zombie. (After the parent dies, the zombie will be inherited by pid 1, which will wait on it and clear its entry in the process table.) If your daemon is spawning children that become zombies, you have a bug. Your daemon should notice when its children die and wait on them to determine t...
What's the difference between Thread start() and Runnable run()
...ment the Runnable interface and thus implement the run() method. When you call r1.run() you are executing it in the current thread.
Second example: Two separate threads.
Thread t1 = new Thread(r1);
Thread t2 = new Thread(r2);
t1 and t2 are objects of the class Thread. When you call t1.start(),...
SQL selecting rows by most recent date
...g query and results, I'm looking for the most recent entry where the ChargeId and ChargeType are unique.
5 Answers
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How does deriving work in Haskell?
Algebraic Data Types (ADTs) in Haskell can automatically become instances of some typeclasse s (like Show , Eq ) by deriving from them.
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Android Archive Library (aar) vs standard jar
...i don't want they can reflect our class members and they can't have method call from their apps. I there any way to protect my code from reflection.
– Mohammad moradyar
Feb 3 '17 at 9:54
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Are arrays passed by value or passed by reference in Java? [duplicate]
...to the array. So, when you assign something to a cell of the array in the called method, you will be assigning to the same array object that the caller sees.
This is NOT pass-by-reference. Real pass-by-reference involves passing the address of a variable. With real pass-by-reference, the called ...
How to verify multiple method calls with different params
...r example the OP's method had two arguments and wanted to verify they were called together
– committedandroider
Jun 3 '19 at 20:45
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How do I flush the PRINT buffer in TSQL?
...ROR can do some simple substitution, but try substituting a [date]time, or calling a function from inside the RAISERROR statement! This answer gives you a simple FLUSH in the form of raising empty error (at the cost of a newline).
– Tomasz Gandor
Nov 18 '19 at ...
Debug Error \"pure virtual function call\" 原因解析 - 更多技术 - 清泛...
Debug Error "pure virtual function call" 原因解析结论：一般在构造、析构函数中调用虚函数就可能出这个错误，检查纯虚函数，看看有没有在构造析构函数中调用。以下来自：http: www.kuqin.c...结论：一般在构造、析构函数中调用虚函数...
Fragment lifecycle - which method is called upon show / hide?
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Similar to activity lifecycle, Android calls onStart() when fragment becomes visible. onStop() is normally called when fragment becomes invisible, but it can also be called later in time.
Depending on your layout Android can call onStart() even, when your Fragmen...