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 is called Enhanced for-loop. It basically iterates over a Collection by fetching each element in sequence. So you don't need to access elements on index.

List list = new ArrayList();

for (int val: list) {
    System.out.println(val);  // Prints each value from list
}

See §14.14.2 - Enhanced for loop section of Java Language Specification.