Java how to get length of a String

/**
 * @author lautturi.com 
 * Java example: get the length of a String in java
 */

import java.util.*;

public class Lautturi {

	public static void main(String[] args) {

		 // create a string
	    String greet = "Hello! Java World";
	    System.out.println("String: " + greet);

	    // get the length of string greet
	    int length = greet.length();
	    System.out.println("Length: " + length);
	
	}
}

output:

String: Hello! Java World
Length: 17