Question

Object Oriented Programming C++ using class

I need users (customers) to input their name and id.

Program needs to have a menu:

1. Create - input id, name

2. List - see all the list of the users

3. Exit.

It should be limited to 20 users only.

Answer 1

CODE FOR THE GIVEN PROGRAM:

#include <iostream>
#include <string>
#include <stdlib.h>
using namespace std;

// Class having instance variable name and id
class user{
string name;
int id;
public:
// Member function to get id and name
void getter(){
cout<<"Enter your id:\n";
cin>>id;
// remaining input characters up to the next newline character
// are ignored
cin.ignore(256, '\n');
cout<<"Enter your name:\n";
getline(cin,name);
}
// Member function to show id and name
void show(){
cout<<"The id is: "<<id<<endl;
cout<<"The name is: "<<name<<endl;
}
};

//Driver function
int main()
{
user obj[20]; // array of class object
int choice; //varable to store choice enter by user
char ans='y';
cout<<"Menu:\n";
cout<<"1- Create input-id,name\n";
cout<<"2- display the list\n";
cout<<"3- Exit\n";
cin>>choice;
  
while(ans=='y'|| ans=='Y'){
// Switch block to give output as per user choice
switch(choice){
case 1:
for (int i=0;i<20;i++){
obj[i].getter();
}
break;
case 2:
for (int j=0;j<20;j++){
obj[j].show();
}
break;
case 3: exit(1); //function to terminate program if user's choice is 3
}
cout<<"Want to Enter more. Press Y/y\n";
cin>>ans;
cout<<"Menu:\n";
cout<<"1- Create input-id,name\n";
cout<<"2- display the list\n";
cout<<"3- Exit\n";
cin>>choice;
}
return 0;
}

SCREENSHOT OF THE PROGRAM:

SAMPLE OUTPUT:

Sample output have been taken for only two users.

HAPPY LEARNING