// we need to import the Scanner, if we // don't import it, we cannot use it. import java.util.Scanner; class jamesprogram { public static void main(String args[]){ // make variable that will hold the input from // the keyboard. So whatever we input into // the system, will be stored in the variable // froggy Scanner froggy = new Scanner(System.in); // declare 3 double variables double firstnum,secondnum,answer; System.out.println("Enter first number: "); // nextDouble() is a method that stores whatever // number is typed in into firstnum firstnum = froggy.nextDouble(); System.out.println("Enter second number: "); // nextDouble() is a method that stores whatever // number is typed in into secondnum secondnum = froggy.nextDouble(); answer = firstnum+secondnum; System.out.println(answer); } }
This outputs:
Enter first number:
10.3
Enter second number:
2.9
13.200000000000001