Question

Menu driven program for text file class 12th in c++

Answer 1

#include <iostream> using namespace std; void showChoices(); float add(float, float); float subtract(float, float); float multiply(float, float); float divide(float, float); int main() { float x, y; int choice; do { showChoices(); cin >> choice; switch (choice) { case 1: cout << "Enter two numbers: "; cin >> x >> y; cout << "Sum " << add(x,y) <<endl; break; case 2: cout << "Enter two numbers: "; cin >> x >> y; cout << "Difference " << subtract(x,y) <<endl; break; case 3: cout << "Enter two numbers: "; cin >> x >> y; cout << "Product " << multiply(x,y) <<endl; break; case 4: cout << "Enter two numbers: "; cin >> x >> y; cout << "Quotient " << divide(x,y) <<endl; break; case 5: break; default: cout << "Invalid input" << endl; } }while (choice != 5); return 0; } void showChoices() { cout << "MENU" << endl; cout << "1: Add " << endl; cout << "2: Subtract" << endl; cout << "3: Multiply " << endl; cout << "4: Divide " << endl; cout << "5: Exit " << endl; cout << "Enter your choice :"; } float add(float a, float b) { return a + b; } float subtract(float a, float b) { return a - b; } float multiply(float a, float b) { return a * b; } float divide(float a, float b) { return a / b; }