In the file Calculator.java, write a class called Calculator that emulates basic functions of a calculator: add, subtract, multiply, divide, and clear. The class has one private member field called value for the calculator's current value. Implement the following Constructor and instance methods as listed below:

• public Calculator() - Constructor method to set the member field to 0.0
• public void add(double val) - add the parameter to the member field
• public void subtract(double val) - subtract the parameter from the member field
• public void multiply(double val) - multiply the member field by the parameter
• public void divide(double val) - divide the member field by the parameter
• public void clear( ) - set the member field to 0.0
• public double getValue( ) - return the member field

Given two double input values num1 and num2, the program outputs the following values:

1. The initial value of the instance field, value
2. The value after adding num1
3. The value after multiplying by 3
4. The value after subtracting num2
5. The value after dividing by 2
6. The value after calling the clear() method

Ex: If the input is:

the output is:

import java.util.Scanner;

public class LabProgram {

public static void main(String[] args) {

Calculator calc = new Calculator();

Scanner keyboard = new Scanner(System.in);
double num1 = keyboard.nextDouble();
double num2 = keyboard.nextDouble();

// 1. The initial value
System.out.println(calc.getValue());

// 2. The value after adding num1
calc.add(num1);
System.out.println(calc.getValue());

// 3. The value after multiplying by 3
calc.multiply(3);
System.out.println(calc.getValue());

// 4. The value after subtracting num2
calc.subtract(num2);
System.out.println(calc.getValue());

// 5. The value after dividing by 2
calc.divide(2);
System.out.println(calc.getValue());

// 6. The value after calling the clear() method
calc.clear();
System.out.println(calc.getValue());
}
}