Java Program To Reverse a String 

File Name : ReverseString.java

Program:

import java.util.Scanner;

public class ReverseString {
    public static void main(String[] args) {
        Scanner sc=new Scanner(System.in);
        String str=sc.nextLine();
        String str2="";
        for (int i = str.length()-1; i >-1 ; i--) {
            str2=str2+str.charAt(i);
        }
        System.out.println("The Reverse String is : "+str2);
    }
}

Watch complete Tutorial on Youtube: