42. Program for replace word in string in java

class replace

{

            public static void main(String args[])

            {

                        String s1="This is Aditi";

                        String s2,s3;

                        s2=s1.replace('i','w');

                        s3=s1.replace("This","That");

                        System.out.println(s2);

                        System.out.println(s3);

            }

}