Reverse String

Reverse a given string using a loop.

JavaBeginner

Java

import java.util.Scanner;

public class Main {
    public static void main(String[] args) {
        Scanner sc = new Scanner(System.in);
        System.out.print("Enter a string: ");
        String s = sc.nextLine();

        String rev = "";
        for (int i = s.length() - 1; i >= 0; i--) {
            rev += s.charAt(i);
        }

        System.out.println("Reversed string: " + rev);
        sc.close();
    }
}

Output

Enter a string: hello
Reversed string: olleh

We iterate from the last character to the first, building a new reversed string.

Check Palindrome String