message from one object to another

[robert weninger]

Hello, I am working on an IRC client have come to the following stumbling block.

This is as much a project in learning how to program in java as it is to accomplish the task of writing an IRC client.

I have 3 classes as follows:
A - Handles connection with IRC server, sends and receives messages from server
B - GUI, displays IRC messages and contains textbox for user input
C - Main class, instantiates classes A and B.

What I want to do is send a string from object A to object B, using using object C as an intermediary. Currently I have this implemented by using a loop to constantly check if the status of the incomming message string in class A (the IRC server communicator) has changes. This results in 100% CPU usage and is probably not the right way to go about this.

My current thinking is that i need to pass a reference of object B into object A as a parameter ?

[Nick George]

sounds like a plan

[Jeff Bosch]

You could use threads. That would solve your cpu usage problem and could also solve your messaging problem as threads can communicate with each other.

See PipedReader, PipedWriter, PipedInputStream, PipedOutputStream.
[ September 29, 2004: Message edited by: Jeff Bosch ]

[Nick George]

I must advise against threads. Your problem will be much more simply solved with sending references to objects that need references.

[somkiat puisungnoen]

Originally posted by robert weninger:
Hello, I am working on an IRC client have come to the following stumbling block.

This is as much a project in learning how to program in java as it is to accomplish the task of writing an IRC client.

I have 3 classes as follows:
A - Handles connection with IRC server, sends and receives messages from server
B - GUI, displays IRC messages and contains textbox for user input
C - Main class, instantiates classes A and B.

What I want to do is send a string from object A to object B, using using object C as an intermediary. Currently I have this implemented by using a loop to constantly check if the status of the incomming message string in class A (the IRC server communicator) has changes. This results in 100% CPU usage and is probably not the right way to go about this.

My current thinking is that i need to pass a reference of object B into object A as a parameter ?

You should be used Thread in Class A and class A should observer object B every time. if object b change, object a MUST chenge too.