What is the shortest infinite loop statement in Java?

Question

I'm working on a golf for Java and I need an infinite loop. Obviously, I don't want to spend any more bytes than I have to, especially in such an expressive language.

Assuming I have some code I want to run, obviously the baseline is set at while(1>0)/*stmt*/ or 10 additional characters for a single line and while(1>0){/*stmt1*//*stmt2*/} or 12 additional characters for multiple lines. I say additional because the code I want to loop forever (well, forever-ish... I may or may not want to break out of or return from the loop) will have a certain length, and then I must tack on additional characters to make it actually loop.

At first I thought this was the best I'd get, but I figured I'd throw it out to the experts to see if they can find a better one.

Answer 1

for(;;){}

It works cause no condition evaluates to always true. Insert the code between the braces.

If you only got a few statements you can place them inside the head (the (;;) part. That the loop still runs is caused by when the condition statement is not a boolean it counts as always true. Thanx to @Ypnypn for the reminder

Answer 2

50 bytes

interface M{static void main(String[]a){for(;;);}}

Answer 3

Java - 60 bytes (complete code)

I'm probably not interpreting the question correctly, but this code when compiled and run results in an infinite-ish loop, in that technically it should run forever, but usually it will exhaust the stack memory.

public class X{public static void main(String[]a){main(a);}}

On Coding Ground it ends quite quickly, on my Windows 7 laptop with advanced virtual memory management, it runs a long time, just making the system slower and slower.

Answer 4

for(/*init*/;;/*stmt*/){/*stmt*/}

To save characters, you can use the init and increment parts of the loop to save a few bytes by using the semicolons.