For loop in the form of : “for (A b : c)” in Java

Question

This is the first time that I\'ve seen this kind of syntax :

// class Node
public class Node { 

...
...

}

public class Otherclass { ... }

Otherclass gra         


        

Answer 1

It's a for each loop. You could also write it like this:

for(int i = 0; i < successors.size(); i++) {
    Node son = successors.get(i);
}

Though the only time I'd personally do that is when the index is needed for doing something other than accessing the element.