*
The moose likes Beginning Java and the fly likes problem with calling of a method's object in another method Big Moose Saloon
  Search | Java FAQ | Recent Topics | Flagged Topics | Hot Topics | Zero Replies
Register / Login
JavaRanch » Java Forums » Java » Beginning Java
Bookmark "problem with calling of a method Watch "problem with calling of a method New topic
Author

problem with calling of a method's object in another method

Hamza Fetuga
Greenhorn

Joined: Oct 26, 2011
Posts: 7
Please check these codes for me. The variable 'answer' gives zero when called in method run and i need it to retain its value throughout the programme.
The programme generates a number with d method generate() and the method run() checks if the user is right or wrong. If wrong it allows the user to re enter until he gets it. Bt like i said the variable 'answer' is giving me problems




the test package is
Ralph Cook
Ranch Hand

Joined: May 29, 2005
Posts: 479
You have two variables named 'answer' in this code; one is local to the routine generate(), and the other is an instance variable in RandomGame. When you call generate(), your code is setting the local variable in that routine, and then returning it, but nothing is receiving the value that is generated. The instance variable in RandomGame is never given a value, so it is zero.

At some point it appears you wanted to do something like

though you would have to work out where that gets done that ne is the correct object and answer is in the block you want it to be in.

Also: you have run() call itself. That will work, sort of, but is a clumsy way of repeating the actions. I suspect what you want to do is repeat until someone closes the program, or enters a special value on the keyboard, or something. A more common way of doing that is something like

where 'done' gets set to true under some condition and terminates the loop.
Aniket S. Kulkarni
Ranch Hand

Joined: Jun 15, 2011
Posts: 87

Hamza Fetuga Welcome to Ranch.
I agree with Ralph Cook.

You should have variable that will receive the value returned by the function.
Your program should terminate.
Ralph Cook addressed issues correctly.


Aniket Kulkarni
Oracle Certified Professional, Java SE 6 Programmer.
Hamza Fetuga
Greenhorn

Joined: Oct 26, 2011
Posts: 7
Thank you very much for your suggestions. I will give them a try
 
jQuery in Action, 2nd edition
 
subject: problem with calling of a method's object in another method
 
Similar Threads
Extracting numbers from from a user input and comparing it to
Play again function help?
trouble with loops and invoking a method
I keep having a issue with variables and methods.
Trouble with Guessing Game