Java Program to show the use of concat()

import java.io.*;
import java.util.*;
public class Concating{
    Scanner scan=new Scanner(System.in);
    String firstName, lastName;
    public void input(){
        try{
            System.out.println("Enter your First Name: ");
            firstName=scan.next();
            System.out.println("Enter your Last Name: ");
            lastName=scan.next();
        }
        catch(Exception e){
            System.out.println("Error Code: "+e);
            System.exit(0);
        }
    }

    public void compute(){
        System.out.println("Full Name: "+(firstName.concat(" "+lastName)));
    }

    public static void main(String[] args){
        Concating obj=new Concating();
        obj.input();
        obj.compute();
    }
}