Chapter 16, Problem 1PC

Program Plan Intro

• Import javax.swing.JOptionPane library.
• Define the public class definition.
  • Define the main method using public static void main(String[] args).
    • Declare double variables to pass the required arguments.
    • Get the required value of the first number using input() method and store in num1 variable.
    • Get the required value of the second number using input() method and store in num2 variable.
    • Calculate their product and display it.
  • Close the main method.
  • Define the recursive method to multiply the variables.
    • Define if condition and equate the variable x with 1.
    • Return the value stored in the variable y.
    • Define else condition.
    • Return the value stored in the variable y.
  • Close the recursive method.
• Close the public class.