Programming Forums > Application Development > Java

zanatos · Jan 27th, 2008, 11:40 AM

I am making a small program that will use the quadratic equation to solve a problem. I am suppose to make two separete classes, one to ask for input(main method) and the other to calcuate. So far I made both classes and wrote the code. However, I am having problems importing the second class and calling it! I know I have to write this import classname; but how do I call the class? so it can do its function.

Thx in advance.

Eric the Red · Jan 27th, 2008, 12:49 PM

If you've got 2 classes / 2 separate files. You'll be able to instantiate an instance of your calculate class (from within your other class) Done like so ->

(Toggle Plain Text)

Calculate calc = new Calculate();

Furthermore, if you want to call methods from that class you do

(Toggle Plain Text)

int theValue = 0;
theValue = calc.calculateIT();

zanatos · Jan 27th, 2008, 4:34 PM

Thanks alot, it works great!

Eric the Red · Jan 28th, 2008, 10:36 PM

Not a problem. Good luck!

Jan 27th, 2008, 11:40 AM	#1
zanatos Newbie Join Date: Dec 2007 Posts: 11 Rep Power: 0	Importing classes! I am making a small program that will use the quadratic equation to solve a problem. I am suppose to make two separete classes, one to ask for input(main method) and the other to calcuate. So far I made both classes and wrote the code. However, I am having problems importing the second class and calling it! I know I have to write this import classname; but how do I call the class? so it can do its function. Thx in advance.

Jan 27th, 2008, 12:49 PM	#2
Eric the Red Hobbyist Programmer Join Date: Feb 2006 Posts: 214 Rep Power: 0	Re: Importing classes! If you've got 2 classes / 2 separate files. You'll be able to instantiate an instance of your calculate class (from within your other class) Done like so -> (Toggle Plain Text) Calculate calc = new Calculate(); Calculate calc = new Calculate(); Furthermore, if you want to call methods from that class you do (Toggle Plain Text) int theValue = 0; theValue = calc.calculateIT(); int theValue = 0; theValue = calc.calculateIT(); __________________ Death smiles at us all. All a man can do is smile back.

Jan 27th, 2008, 4:34 PM	#3
zanatos Newbie Join Date: Dec 2007 Posts: 11 Rep Power: 0	Re: Importing classes! Thanks alot, it works great!

Jan 28th, 2008, 10:36 PM	#4
Eric the Red Hobbyist Programmer Join Date: Feb 2006 Posts: 214 Rep Power: 0	Re: Importing classes! Not a problem. Good luck! __________________ Death smiles at us all. All a man can do is smile back.

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Programming Forums > Application Development > Java

Importing classes!