String reverses & Digits (Numbers) Reverse functionality in both manual and using Java inbuilt functionality.

Hi All,

Hi All, Here I write programs for the given String Reverse functionality in both manual and Java inbuilt functionality in the same way in Digits (Numbers) also :-)

import java.util.Scanner;

public class reversenum {

    public static void main(String args[]) {
        //Reverse Integer Digits in Java
        System.out.println("Reverse Integer Digits in Java");
        System.out.println("Enter the digits for reverse ");
        Scanner s = new Scanner(System.in);

        int i = reverseDigt(s.nextInt());
        System.out.println("After Reverse given digits :-) ");
        System.out.println(i); 
       
        //Reverse String in Java
        System.out.println("Using String functioality Reverse the String in Java ");
        System.out.println("Please enter any content ");
        Scanner str1 = new Scanner(System.in);
        String name = str1.nextLine();   // reading a string from console
        String reverse1 = new StringBuffer(name).reverse().toString();       //Using inbuild reverse function example 
        System.out.printf("Original String : %s , Reversed String %s  %n", name, reverse1);
      
       
        //manually reverse function example
        System.out.println("Using manually string reverse functionlity in Java ");
        Scanner str2 = new Scanner(System.in);
        String name1 = str2.nextLine();   // reading a string from console
        reverse1 = srtreverse(name1);
        System.out.printf("Original String : %s , Reversed String %s %n", name1, reverse1);
    }

    // function for manually reverse the String
    public static String srtreverse(String source) {
        if (source == null || source.isEmpty()) {
            return source;
        }
        String reverse = "";
        for (int i = source.length() - 1; i >= 0; i--) {
            reverse = reverse + source.charAt(i);
        }

        return reverse;
    }

    // function for manually reverse the digits
    public static int reverseDigt(int x) {

        String st = x + "";
        StringBuffer sb = new StringBuffer(st).reverse();
        return new Integer(sb.toString()).intValue();

    }
}

output:

~~~~~~

Reverse Integer Digits in Java
Enter the digits for reverse
123456
After Reverse given digits :-)
654321
Using String functioality Reverse the String in Java
Please enter any content
skitech
Original String : skitech , Reversed String hcetiks 
Using manually string reverse functionlity in Java
telent
Original String : telent , Reversed String tnelet