writing a definition of a class

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Views: 472 | Replies: 3 | Solved

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Join Date: Dec 2007

Posts: 19

Reputation: Danii is an unknown quantity at this point

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Danii

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Newbie Poster

writing a definition of a class

Dec 2nd, 2007

Hi Please help me with this problem

Write the definition of a class Play containing:
An instance variable counter of type int , initialized to 0.
A method called increment that adds one to the instance variable counter . It does not accept parameters or return a value.
A method called getValue that doesn't accept any parameters. It returns the value of the instance variable counter .

 Help with Code Tags 
 java Syntax (Toggle Plain Text) 
my code:
public class play
{
int counter =0;
public void increment()
public getValue(){       //something is wrong here 
return counter;}
}
my code:
public class play
{
int counter =0;
public void increment()
public getValue(){       //something is wrong here 
return counter;}
}

Any advice would be appreciated

Last edited by cscgal : Dec 2nd, 2007 at 3:24 pm. Reason: Added code tags

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Join Date: Nov 2007

Location: Belgium

Posts: 62

Reputation: Black Box is on a distinguished road

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Black Box

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Junior Poster in Training

Re: writing a definition of a class

Dec 2nd, 2007

Ok, your method increment needs to increment that counter variable, which you aren't doing...

There actually isn't anything wrong with the method getValue.

Try to think about what should happen in the increment method and then post again what you have if it isn't working.

 Help with Code Tags 
 java Syntax (Toggle Plain Text) 
public void increment() {
   // something needs to happen here.
}
public void increment() {
   // something needs to happen here.
}

[wrong]Why did you think there was something wrong with your return statement?[/wrong]
Ok, there is something wrong there, every method in Java needs to know what its return value is.

Black Box.

Last edited by Black Box : Dec 2nd, 2007 at 3:53 pm.

Studio Black Box

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Join Date: Dec 2007

Posts: 19

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Danii

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Re: writing a definition of a class

Dec 2nd, 2007

thanks Black Box I fixed it now tyty !!

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Join Date: Nov 2007

Location: Belgium

Posts: 62

Reputation: Black Box is on a distinguished road

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Black Box

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Junior Poster in Training

Re: writing a definition of a class

Dec 2nd, 2007

No problem, welcome to DaniWeb btw.

If you're pretty new to Java, you might want to check out the sticky topic posted by sos at the top of this Java-forum. A lot of basic useful information which will take you to the next level in no time.

Black Box.

Studio Black Box