is there a way to make array as a float?

[maculhet]

I'm making a credit card billing statement so i kinda need to use an array to save multiple variables. so is there a way to use array on float because decimal numbers is very much needed in my program...thnx for the reply in advance

[Athar]

Of course. Why don't you just try it?

[eypros]

Of course you can use array with floats (or better doubles) but I guess since you want to make a program working with credit card (even if it's a toy program only) you should first consider what kind you want your array to accomplish.

Integer has the benecit to be exact and to make this ideal for comparison.

Float

s have more flexibility in representing numbers but lack this exactness meaning you can store amount on them but it's not a good idea to store card id for example.

[maculhet]

#include<iostream>
#include<cstdlib>
using namespace std;
main()
{
    double num[100],result=0, x;//this part is not working
    double member=0;
    char name[100], address[300];
    int date=0, pdate[100];
            
            system("cls");
            cout<<"\t\t\t+++++++++++++++++++++++++++++++\n";
            cout<<"\t\t\t| Welcome to American Express |\n";
            cout<<"\t\t\t+++++++++++++++++++++++++++++++\n";
            cout<<"\n\nEnter Name: ";
            cin>>name;
            do
            {
                cout<<"\nEnter Membership No.: ";
                cin>>member;
                if(member<=0)
                {
                    cout<<"Invalid Input! Try Again!\n";
                    cin.clear();
                    cin.ignore();
                }
            }while(member<=0);
            do
            {   
                cout<<"\nEnter Date: ";
                cin>>date;
                if(date<112012||date>=112018)
                {
                    cout<<"Invalid Input! Try Again!\n";
                    cin.clear();
                    cin.ignore();
                }
            }while(date<112012||date>=112018);
               do
                {
                    cout<<"Enter Amount "<<x<<":";
                    cin>>num[x];
                    cout<<"Enter Date "<<x<<":";
                    if(!cin)
                    {
                        cout<<"Invalid Input! Please Try Again!\n";
                        cin.clear();
                        cin.ignore();
                        x=0;
                    }
                }while(!cin);
    system("pause");
    
}

this code wont allow me to run my program...

[MrHutch]

It's not the line you're suggesting in comments; it's the line above.

main needs to return an integer. You haven't specified a return type.

Furthermore, line 42 is going to give you some trouble. The variable x really ought to be an integer, since it's being used as an array index.

[maculhet]

ok thnx...but I still don't know how to fix this...

[MrHutch]

Make x an integer and have your main function return an integer.

Functionally, I'm not sure if that will fix your program in the sense that it'll do what you want it to; I haven't looked that far ahead yet and that'll be up to you.

It will, however, allow your code to compile.

[maculhet]

hey how bout that...your right i didn't even notice that.. thanks a lot you've been a big help.