main.cpp: #include #include #include "Calculator.h" using namespace std; int main() { Calculator calc;    double num1;    double num2;       cin >> num1;    cin >> num2;       cout << fixed << setprecision(1);    // 1. The initial value    cout << calc.GetValue() << endl;           // 2. The value after adding num1    calc.Add(num1);    cout << calc.GetValue() << endl;           // 3. The value after multiplying by 3    calc.Multiply(3);    cout << calc.GetValue() << endl;           // 4. The value after subtracting num2    calc.Subtract(num2);    cout << calc.GetValue() << endl;           // 5. The value after dividing by 2    calc.Divide(2);    cout << calc.GetValue() << endl;           // 6. The value after calling the clear() method    calc.Clear();    cout << calc.GetValue() << endl; return 0; } Calculator.h: #ifndef CALCULATORH #define CALCULATORH class Calculator {    public:      // TODO: Declare default constructor       // TODO: Declare member functions -    // Add(), Subtract(), Multiply(), Divide(), Clear(), GetValue()       private:    // TODO: Declare private data member - value }; #endif Calculator.cpp: #include #include "Calculator.h" using namespace std; // TODO: Define default constructor        // TODO: Define member functions - // Add(), Subtract(), Multiply(), Divide(), Clear(), GetValue()

C++ Programming: From Problem Analysis to Program Design
8th Edition
ISBN:9781337102087
Author:D. S. Malik
Publisher:D. S. Malik
Chapter9: Records (struct)
Section: Chapter Questions
Problem 12SA
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main.cpp:

#include <iostream>
#include <iomanip>
#include "Calculator.h"
using namespace std;

int main() {
Calculator calc;
   double num1;
   double num2;
  
   cin >> num1;
   cin >> num2;
  
   cout << fixed << setprecision(1);
   // 1. The initial value
   cout << calc.GetValue() << endl;
      
   // 2. The value after adding num1
   calc.Add(num1);
   cout << calc.GetValue() << endl;
      
   // 3. The value after multiplying by 3
   calc.Multiply(3);
   cout << calc.GetValue() << endl;
      
   // 4. The value after subtracting num2
   calc.Subtract(num2);
   cout << calc.GetValue() << endl;
      
   // 5. The value after dividing by 2
   calc.Divide(2);
   cout << calc.GetValue() << endl;
      
   // 6. The value after calling the clear() method
   calc.Clear();
   cout << calc.GetValue() << endl;

return 0;
}

Calculator.h:

#ifndef CALCULATORH
#define CALCULATORH

class Calculator {
   public:  
   // TODO: Declare default constructor
  
   // TODO: Declare member functions -
   // Add(), Subtract(), Multiply(), Divide(), Clear(), GetValue()
  
   private:
   // TODO: Declare private data member - value
};

#endif

Calculator.cpp:

#include <iostream>
#include "Calculator.h"
using namespace std;

// TODO: Define default constructor
      
// TODO: Define member functions -
// Add(), Subtract(), Multiply(), Divide(), Clear(), GetValue()

9.37 LAB: Calculator class
Given main(), complete the Calculator class (in files Calculator.h and Calculator.cpp) that emulates basic functions of a calculator: add,
subtract, multiple, divide, and clear. The class has one private data member called value for the calculator's current value. Implement the
following constructor and public member functions as listed below:
• Calculator() - default constructor to set the data member to 0.0
• void Add(double val) - add the parameter to the data member
• void Subtract(double val) - subtract the parameter from the data member
• void Multiply(double val) - multiply the data member by the parameter
• void Divide(double val) - divide the data member by the parameter
• void Clear() - set the data member to 0.0
• double GetValue() - return the data member
Given two double input values num1 and num2, the program outputs the following values:
1. The initial value of the data member, 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:
10.0 5.0
the output is:
0.0
10.0
30.0
25.0
12.5
0.0
Transcribed Image Text:9.37 LAB: Calculator class Given main(), complete the Calculator class (in files Calculator.h and Calculator.cpp) that emulates basic functions of a calculator: add, subtract, multiple, divide, and clear. The class has one private data member called value for the calculator's current value. Implement the following constructor and public member functions as listed below: • Calculator() - default constructor to set the data member to 0.0 • void Add(double val) - add the parameter to the data member • void Subtract(double val) - subtract the parameter from the data member • void Multiply(double val) - multiply the data member by the parameter • void Divide(double val) - divide the data member by the parameter • void Clear() - set the data member to 0.0 • double GetValue() - return the data member Given two double input values num1 and num2, the program outputs the following values: 1. The initial value of the data member, 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: 10.0 5.0 the output is: 0.0 10.0 30.0 25.0 12.5 0.0
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