Java Programs

/**
 * Input1=”Hello World”;
 * Output = “dello WorlH”
 */

package programs;

import java.util.Scanner;

public class SwapFirstandLastChar {
public static void main(String args[]) {
Scanner in = new Scanner(System.in);
System.out.println("Enter the Input String : ");
String input = in.nextLine();
String output = "";

char[] a = input.toCharArray();
char first = a[0];
char last = a[a.length - 1];

a[0] = last;
a[a.length - 1] = first;

for (int i = 0; i < a.length; i++) {
output = output + a[i];
}
output = output.toString();

System.out.println("Output String is " + output);
}

}