Here's the code for simple calculator program in C++:
Output:
#include <iostream> using namespace std; class calculator { public: void add(){ int a,b; cout << "Enter first number:"; cin >> a; cout << "Enter second number:"; cin >> b; cout << "addition is :" << a+b; } void sub(){ int a,b; cout << "Enter first number:"; cin >> a; cout << "Enter second number:"; cin >> b; cout << "subtraction is :" << a-b; } void multi(){ int a,b; cout << "Enter first number:"; cin >> a; cout << "Enter second number:"; cin >> b; cout << "multiplication is :" << a*b; } void divi(){ int a,b; cout << "Enter first number:"; cin >> a; cout << "Enter second number:"; cin >> b; cout << "division is :" << a/b; } }; int main() { calculator calc; int get; for(int i=1;i>0;i++) { cout << "\n\nPress:\n\t1 : addition\n\t2 : subtraction\n\t3 : multiplication\n\t4 : division\n\t0 : quit\n"; cin >> get; if(get==1){ calc.add(); } else if(get==2){ calc.sub(); } else if(get==3){ calc.multi(); } else if(get==4){ calc.divi(); } else{ break; } } return 0; }
Output:
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