public class one {

     public static void main(String[] args) {

           Boolean b1, b2;

           // create 2 String's and assign values

           String s1 = null;

           String s2 = "truE";

           /**

            *  static method is called using class name

            *  assign result of valueOf method on s1, s2 to b1, b2

            */

           b1 = Boolean.valueOf(s1);

           b2 = Boolean.valueOf(s2);

           System.out.println(b1);

           System.out.println(b2);

           String str1 = "Boolean instance of string " + s1 + " is "  + b1;

           String str2 = "Boolean instance of string " + s2 + " is "  + b2;

           // print b1, b2 values

           System.out.println( str1 );

           System.out.println( str2 );

     }

 }