Basic addition java program

 Program:

import java.util.*;
public class apple
{
public static void main(String args[])
{
Scanner sc=new Scanner(System.in);
double i,j,k;
System.out.println("enter first number");
i=sc.nextDouble();
System.out.println("enter second number");
j=sc.nextDouble();
k=i+j;
System.out.println(k);
}
}

Output:
 enter first number
5
enter second number
6
11.0

note:

you can build multiplication,subtraction,division,etc by just chaning the operator (+,-,*,/)

In this program we are using scanner class for dynamically entering the values of different numbers that's why importing java.util package