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Take a look to the given array bellow:

int[] numbers = {1,2,3,4,5,6};

How you iterate that array? so the result of iteration will look like this:

This is number 1

This is number 2

This is number 3

..so on

This is old-style-for-loop that i use before, initialize counter, set up a terminating condition and describe how the counter may be increment. It’s classic but sometime we need it. It will be look like this:

package belajarjavadotcom.post.genericloop
 
public class GenericLoop {
	public static void main(String[] args) {
		int[] numbers = {1,2,3,4,5,6};
		for(int i=0; i<numbers.length; i++) {
			System.out.println("This is number "+numbers[i]);
		}
	}
}
 

Now, start from JDK 1.5 we can simply write a new-fashion-for-looping.  We do not need to determine how many element in array before looping, we do not need to setting up termiating condition neither incremental value of the counter. It’s easy so take a look codes bellow: (more…)