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Is the != check thread safe?
... This is the bytecode for test()
ALOAD 0
GETFIELD test/Test1.a : Ljava/lang/Object;
ALOAD 0
GETFIELD test/Test1.a : Ljava/lang/Object;
IF_ACMPEQ L1
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as we can see it loads field a to local vars twice, it's a non-atomic operation, if a was changed in between by another thre...
throwing an exception in objective-c/cocoa
...o avoid using exceptions for common error situations". The same applies in Java; it's bad practice to handle user input errors (for example) with exceptions. Not just because of resource usage, but also for code clarity.
– beetstra
Dec 7 '10 at 12:58
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Preferred way of loading resources in Java
I would like to know the best way of loading a resource in Java:
5 Answers
5
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Memory address of variables in Java
Please take a look at the picture below.
When we create an object in java with the new keyword, we are getting a memory address from the OS.
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What difference between Jersey vs jax-rs
... For example: JAX-RS gives you a set of interfaces (standard Java interfaces) which are implemented by Jersey. So that set of interfaces (or classes) are needed as a dependency to be implemented.
– Ale Zalazar
Jul 26 '13 at 19:12
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How to give System property to my test via Gradle and -D
I have a a Java program which reads a System property
5 Answers
5
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In Java, how do I call a base class's method from the overriding method in a derived class?
I have two Java classes: B, which extends another class A, as follows :
12 Answers
12
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Run jar file in command prompt [duplicate]
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Try this
java -jar <jar-file-name>.jar
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How can I get zoom functionality for images?
...ut the github project to get the latest code.
USAGE
Place TouchImageView.java in your project. It can then be used the same as
ImageView. Example:
TouchImageView img = (TouchImageView) findViewById(R.id.img);
If you are using TouchImageView in xml, then you must provide the full package
name, b...
How to convert a char array back to a string?
...t this is a very unusual situation: Because String is handled specially in Java, even "foo" is actually a String. So the need for splitting a String into individual chars and join them back is not required in normal code.
Compare this to C/C++ where "foo" you have a bundle of chars terminated by a ...