Answer to Question #317256 in Algorithms for KeKo

Question

Write a program in C++ that will simulate a basic calculator. The program should present a menu to the user and ask the user to type an option. You should use the switch statement to execute the operation selected. The menu should have the following options: 

1. Add

2. Multiply

3.Subtract

4.Divide

The program should then ask for 2 numbers and perform the operation. For the 'Subtract' option, the program should check to see which number is greater then subtract the smaller number from the larger.

Answer 1

#include <iostream>


using namespace std;


int main(){
	double number1,number2; 
	int choice=0;


	while(choice!=5){
		cout<<"1. Add\n";
		cout<<"2. Multiply\n";
		cout<<"3. Subtract\n";
		cout<<"3. Divide\n";
		cout<<"4. Quit\n";
		cout<<"Your choice: ";
		cin>>choice;
		if(choice>=1 && choice<=3){
			cout<<"Enter the number 1: ";
			cin>>number1;
			cout<<"Enter the number 2: ";
			cin>>number2;
		}
		switch(choice){
		case 1:{
			double sum = number1 + number2;
			cout<<"\nSum = "<<sum<<"\n\n";
			   }
			   break;
		case 2:{
			double product = number1 * number2;
			cout<<"\nProduct = "<<product<<"\n\n";
			   }
			   break;
		case 3:{
			
			double difference = number1 - number2;
			if(number1 < number2){
				difference = number2 - number1;
			}
			
			cout<<"\nDifference = "<<difference<<"\n\n";
			   }
			   break;
		case 4:{
			double quotient = number1 / number2;
			cout<<"\nQuotient = "<<quotient<<"\n\n";
			   }
			   break;
		case 5:
			break;
		default:
			cout<<"\nWrong menu item\n\n";
			break;
		}
	}
	return 0;
}