Back To C++ User Defined Functions Index

---

//program to create two functions to calculate area and perimeter of rectangle and call them based on user choice using switch statement #include<iostream.h> #include<conio.h> void area(int,int); void perimeter(int,int); void area(int length,int breadth) { int area; area=length*breadth; cout<<"are aof rectangle is "<<area; } void perimeter(int length,int breadth) { int perimeter; perimeter=2*(length+breadth); cout<<"perimeter of rectangle is "<<perimeter; } void main() { int ch; int l,b; clrscr(); cout<<"enter length of rectangle"; cin>>l; cout<<"enter breadth of rectangle"; cin>>b; cout<<"enter your choice 1 for area or 2 for perimeter"; cin>>ch; switch(ch) { case 1: area(l,b); break; case 2: perimeter(l,b); break; default:cout<<"enter a valid choice 1 for area or 2 for perimeter"; } getch(); }