0

I've seen in a java program the following syntax : 

for(;;){

}

What does it means ? I didn't see the explanation on internet after some researches.

Is it the same thing that a while(true) loop?

Edit :

Sorry for duplicate, when your type " for(;;) " in your researches you doesn't find the information wanted. Thanks for reply.

Corentin
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    Were you not able to verify this? – zEro Jul 31 '13 at 11:43
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    I never understood the existence of this while `while(true)` exists. Well, it's just me. – Leri Jul 31 '13 at 11:43
  • @PLB, the while(true) (in C/C++: while(1)) is usefull for something that has to run "infinitely". The actual interruption of the loop in such cases is handled in its body. Low-level example: imagine you have a microcontoller that once powered on has to run and run, checking input from its pins and sending signals to other parts of the system. There are situation in high-level programming languages (such as Java) where something like this is also needed: waiting for input by the user. – rbaleksandar Jul 31 '13 at 11:56

3 Answers3

9

This:

for (;;) {
}

It's a shorthand for an infinite loop, equivalent to this:

while (true) {
}

In fact, as show in this answer both are completely equivalent at the bytecode level.

Community
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Óscar López
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1

The three expressions of the for loop are optional.

an infinite loop can be created as follows:

// infinite loop

for ( ; ; ) {

    // your code goes here
}
swapy
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Sandip Lawate
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0

It is an infinite loop and yes, it is the same as 

while(true) {

}

But considering the complexity" of your question I do believe you could have just written a simple Hello World programm with this structure in it and see what happen, right? ;)

Atish Kumar Dipongkor
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rbaleksandar
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