Linked Questions

I was wondering is there any usability of using final local variables. Variables are not overridden anyway when inheritance comes into picture. For example a simple code as below public static void ...

Possible Duplicate: Why would one mark local variables and method parameters as “final” in Java? I was checking some Java code, I am not good at java at least have some knowledge what ...

Possible Duplicate: Is there any performance reason to declare method parameters final in Java? Why would one mark local variables and method parameters as “final” in Java? I am ...

Possible Duplicate: Why would one mark local variables and method parameters as “final” in Java? I used PMD in my code and it always tells me to make method local variables final. Can ...

What is the point of declaring instance variable as final final List<Integer> intList = new ArrayList<Integer>();

I always thought Java uses pass-by-reference. However, I read a blog post which claims that Java uses pass-by-value. I don't think I understand the distinction the author is making. What is the ...

In Java, there is a practice of declaring every variable (local or class), parameter final if they really are. Though this makes the code a lot more verbose, this helps in easy reading/grasping of ...

I've found a couple of references (for example) that suggest using final as much as possible and I'm wondering how important that is. This is mainly in the the context of method parameters and local ...

Is there any performance reason to declare method parameters final in Java? As in: public void foo(int bar) { ... } Versus: public void foo(final int bar) { ... } Assuming that bar is only read and ...

I come from a C++ background and I am currently learning Java. One question arose when I have tried using some third party libraries. How do I determine if the call to a method taking an object ...

Compare this method: void doStuff(String val) { if (val == null) { val = DEFAULT_VALUE; } // lots of complex processing on val } ... to this method: void doStuff(String origVal) ...

I understand how the below statement works. for(final Animal animal : animalList){ //do some function } But what is the purpose of using the final keyword here ?

What is faster in Java. Accessing an array index directly multiple times, or saving the value of the array index to a new variable and use this for following compution? acces index if ((shape....

If I look at the java source source code in the OpenJDK or Hibernate or Apache I have yet to see any local variables declared final. This suggests that the developers of some of the most widely used ...

Stream<Map.Entry<String, List<Object>>> sorted = index.entrySet().stream() .sorted(Map.Entry.comparingByValue()); The method sorted(Comparator<? super Map.Entry&...