java replaceLast() [duplicate]

Answer 1

It really works good. Just add your string where u want to replace string in s and in place of "he" place the sub string u want to replace and in place of "mt" place the sub string you want in your new string.

import java.util.Scanner;

public class FindSubStr 
{
 public static void main(String str[])
 {
    Scanner on=new Scanner(System.in);
    String s=on.nextLine().toLowerCase();
    String st1=s.substring(0, s.lastIndexOf("he"));
    String st2=s.substring(s.lastIndexOf("he"));
    String n=st2.replace("he","mt");

    System.out.println(st1+n);
 }

}