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.

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Chapter 15, 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.

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