Java Programming Tutorial -- Building a Basic Calculator

import java.util.Scanner; 

public class apples{

public static void main(String args[]) {

Scanner thileban = new Scanner (System.in);

double fnum, snum, answer; 

System.out.println("Enter first num: "); 

fnum = thileban.nextDouble(); 

System.out.println("Enter Second num: "); 

snum = thileban.nextDouble();

answer = fnum + snum; 

System.out.println(answer);

}}