What is the difference between a standard?while(true)?loop and?for(;;)?

Is there any, or will both be mapped to the same bytecode after compiling?

Semantically, they're completely equivalent. It's a matter of taste, but I think?while(true)?looks cleaner, and is easier to read and understand at first glance. In Java neither of them causes compiler warnings.

At the bytecode level, it might depend on the compiler and the level of optimizations, but in principle the code emitted should be the same.

EDIT:

On my compiler, using the?Bytecode Outline?plugin,the bytecode for?for(;;){}?looks like this:

L0LINENUMBER 6 L0FRAME SAMEGOTO L0

And the bytecode for?while(true){}?looks like this:

L0LINENUMBER 6 L0FRAME SAMEGOTO L0

So yes, at least for me, they're identical.

It's up to you which one to use. Cause they are equals to compiler.

public class Test {public static void main(String[] args) {while (true) {System.out.println("Hi");}} }javac -g:none Test.java rename Test.class Test1.classpublic class Test {public static void main(String[] args) {for (;;) {System.out.println("Hi");}} }# javac -g:none Test.java # mv Test.class Test2.class # diff -s Test1.class Test2.class Files Test1.class and Test2.class are identical

http://stackoverflow.com/questions/8880870/java-for-vs-whiletrue

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