Programming Forums > Application Development > C++

TriColor · Mar 8th, 2006, 10:31 AM

Hello everyone ive just started learning c++ recently (about 2 weeks ago) and i was wondering if there is any tutorials on how to make a calculator? or someone could point me in the right direction to making one? thanks

-Daniel

DaWei · Mar 8th, 2006, 11:34 AM

You are new. Please read the forum's rules/FAQ and a "How to Post..." thread. Both encourage searching for answers before posting. Google turns up a shit-load of links such as you seek.

zorin · Mar 8th, 2006, 11:37 AM

A calculator tutorial is here. You should really read dome other tutorials first. I learned from this site that was very useful when I got started on C++

Ooble · Mar 8th, 2006, 12:43 PM

For something like a calculator, I would recommend thinking about it yourself first. A lot can be learnt from your first attempt at designing, developing and debugging a relatively complicated program. You don't need to provide all the functions of a normal calculator to start with - try something easy first:

(Toggle Plain Text)

Enter the first number: 5
Enter the operator: *
Enter the second number: 3

5 * 3 = 15

HaCkeR · Mar 8th, 2006, 1:29 PM

Yea Ooble's way is a great way to do it,

When i first started C++ the first thing i did was to get the basics of how to input and output, once i had done that i set my self little challenges like making a calculator.

It helps you alot as like Ooble said you have to debug etc. Once you have your basic calculator you can build on it and make it better

DaWei · Mar 8th, 2006, 2:04 PM

As a matter of fact, you can learn a lot more by modifying it later to use a stack, two stacks, polish notation, any number of things.

HaCkeR · Mar 8th, 2006, 2:06 PM

Yea definatly and notation will help you alot aswell so when you come back to look at it you will know what code does what and you won't get confused when you look at the big block of code.

i can't talk realy im a bad anotator lol

Infinite Recursion · Mar 8th, 2006, 2:47 PM

Had to write a complex number class in college, i beat my brain in for a while figuring it out. Definitely start with something simple... then introduce order of operations, etc...

TriColor · Mar 8th, 2006, 4:16 PM

ok thank you everyone for your replys , help and links ill get to work

-Daniel

jayme · Mar 8th, 2006, 4:30 PM

I agree. One way you could attempt to create a calculator without a tutorial is by creating a very simple app to calculate addition/multiplication/division/subtraction (separate programs if you wish). Then try creating a program that asks for user input for an integer only. With that, you should be able to mend all the necessities into one program. Don't forget to ask the user if they want to do another calculation after the previous, if not, exit.

Mar 8th, 2006, 10:31 AM	#1
TriColor Newbie Join Date: Mar 2006 Location: Ireland Posts: 2 Rep Power: 0	Calculator Hello everyone ive just started learning c++ recently (about 2 weeks ago) and i was wondering if there is any tutorials on how to make a calculator? or someone could point me in the right direction to making one? thanks -Daniel

Mar 8th, 2006, 11:34 AM	#2
DaWei Resident Grouch Join Date: Jun 2005 Posts: 6,453 Rep Power: 10	You are new. Please read the forum's rules/FAQ and a "How to Post..." thread. Both encourage searching for answers before posting. Google turns up a shit-load of links such as you seek. __________________ Abstraction doesn't make it impossible to write bad code; it makes it possible to write superior code. Contributor's Corner: Grumpy on C++ Exceptions DaWei on Pointers

Mar 8th, 2006, 12:43 PM	#4
Ooble I eat cake for breakfast. Join Date: Jul 2004 Location: In my box. Posts: 4,434 Rep Power: 9	For something like a calculator, I would recommend thinking about it yourself first. A lot can be learnt from your first attempt at designing, developing and debugging a relatively complicated program. You don't need to provide all the functions of a normal calculator to start with - try something easy first: (Toggle Plain Text) Enter the first number: 5 Enter the operator: * Enter the second number: 3 5 * 3 = 15 Enter the first number: 5 Enter the operator: * Enter the second number: 3 5 * 3 = 15 __________________ Me :: You :: Them

Mar 8th, 2006, 2:04 PM	#6
DaWei Resident Grouch Join Date: Jun 2005 Posts: 6,453 Rep Power: 10	As a matter of fact, you can learn a lot more by modifying it later to use a stack, two stacks, polish notation, any number of things. __________________ Abstraction doesn't make it impossible to write bad code; it makes it possible to write superior code. Contributor's Corner: Grumpy on C++ Exceptions DaWei on Pointers

Mar 8th, 2006, 2:47 PM	#8
Infinite Recursion Programming Guru Join Date: Jul 2004 Location: United States Posts: 3,467 Rep Power: 8	Had to write a complex number class in college, i beat my brain in for a while figuring it out. Definitely start with something simple... then introduce order of operations, etc... __________________ http://jasonpowers.net "There are a thousand hacking at the branches of evil to one who is striking at the root."

Mar 8th, 2006, 11:37 AM	#3
zorin Hobbyist Programmer Join Date: Apr 2005 Posts: 218 Rep Power: 4	A calculator tutorial is here. You should really read dome other tutorials first. I learned from this site that was very useful when I got started on C++

Mar 8th, 2006, 1:29 PM	#5
HaCkeR Hobbyist Programmer Join Date: Nov 2005 Location: UK Posts: 131 Rep Power: 0	Yea Ooble's way is a great way to do it, When i first started C++ the first thing i did was to get the basics of how to input and output, once i had done that i set my self little challenges like making a calculator. It helps you alot as like Ooble said you have to debug etc. Once you have your basic calculator you can build on it and make it better

Mar 8th, 2006, 2:06 PM	#7
HaCkeR Hobbyist Programmer Join Date: Nov 2005 Location: UK Posts: 131 Rep Power: 0	Yea definatly and notation will help you alot aswell so when you come back to look at it you will know what code does what and you won't get confused when you look at the big block of code. i can't talk realy im a bad anotator lol

Mar 8th, 2006, 4:16 PM	#9
TriColor Newbie Join Date: Mar 2006 Location: Ireland Posts: 2 Rep Power: 0	ok thank you everyone for your replys , help and links ill get to work -Daniel

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Programming Forums > Application Development > C++

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