Question

Write a Java program that generates a new string by concatenating the reversed substrings of even indexes and odd indexes separately from a given string.

Answer 1

Answer:

/ReversedEvenOddString.java

import java.util.Scanner;

public class ReversedEvenOddString {

   public static void main(String[] args) {

       Scanner sc = new Scanner(System.in);

       String s = sc.nextLine();

       String evens = "";

       String odds = "";

       for(int i = s.length()-1;i>=0;i--){

           if(i%2==1){

               odds += s.charAt(i);

           }

           else{

               evens += s.charAt(i);

           }

       }

       String res;

       if(s.length()%2==1){

           res = evens+odds;

       }

       else{

           res = odds+evens;

       }

       System.out.println(res);

   }

}