simple program using concept of inheritance (Java) (208)

package com.company;
import java.util.Scanner;
class parent
{
    protected int a;
    public void geta(int x)
    {
        a=x;
    }
}
class child extends parent
{
    private int b;
    public void getb(int y)
    {
        b=y;
    }
   public int sum()
    {
        return a+b;
    }
}
public class Program45 {
    public static void main(String[] args) {
        Scanner p = new Scanner(System.in);
        System.out.println("please enter a first number:");
        int a=p.nextInt();
        System.out.println("please enter a second number:");
        int b=p.nextInt();
        child obj=new child();
        obj.geta(a);
        obj.getb(b);
        System.out.print("sum is : ");
        System.out.println(obj.sum());
    }
}