how to reverse a string in java

/**
 * @author lautturi.com
 * Java example:  reverse a string in java
 */

import java.util.*;

public class Lautturi {

	public static void main(String[] args) {

		String str = "Hello Java";
        char d;
        String reversedStr = "";
        int l = str.length();
        for(int i = l-1; i >= 0; i--)
        {
            d = str.charAt(i);
            reversedStr = reversedStr + d;
        }

		System.out.println(reversedStr);

	}
}

output:

avaJ olleH