What do two semicolons mean in Java for loop?

Question

I was looking inside the AtomicInteger Class and I came across the following method:

/**
 * Atomically increments by one the current value.
 *
          


        

Answer 1

It's the same thing as

while(true) {
    //do something
}

...just a little bit less clear.
Notice that the loop will exit if compareAndSet(current, next) will evaluate as true.

Answer 2

That is a for ever loop. it is just a loop with no defined conditions to break out.

Answer 3

It's an infinite loop, like while(true).

Answer 4

It's just another variation of an infinite loop, just as while(true){} is.

Answer 5

It is equivalent to while(true).

A for-loop has three elements:

• initializer
• condition (or termination expression)
• increment expression

for(;;) is not setting any of them, making it an endless loop.

Reference: The for statement