Java Program to swap the values of a and b

import java.io.*;
import java.util.*;
public class  Swap{
    public static void main(String[] args)throws IOException{
        Scanner scan=new Scanner(System.in);
        int a,b,c;
        System.out.println("Enter the value of a: ");
        a=scan.nextInt();
        System.out.println("Enter the value of b: ");
        b=scan.nextInt();
        System.out.println("Value of a "+a);
        System.out.println("Value of b "+b);
        c=b;
        System.out.println("After:-\nValue of a: "+c);
        b=a;
        System.out.println("Value of b: "+b);
    }
}