asked on

sharing a common variable in 2 classes

I have 2 classes runnung 2 different ActionListener

How could I return a variable to the 1st class after executing it in the second class.

Effectively, a need to call a second class because I need it to run an algorithm, but it uses AcionListener and I can't call a

return thisvariable to the first.

Is there a way to share the common variables between the 2 classes??

Hope you know what I mean?

sengsational

What I like to do is create a 'local memory' object. This is a very simple class with all of the things I want in common (instance variables). I instantiate one of these, and 'everybody' can read and write to it. You just need to pass the reference to this object around to all of your classes.

--Dale--

Nushi

i agree with sengsational .

create a class like this:

public class vars{

public static int var1=...
public static int var2...
}

and from another class cal the vars of this class and you will get what u need.

Nushi.

TLTEO

ASKER

I have 2 class, let's call class first and class second.

class first{
..
..
public void actionPerformed(ActionEvent e)
.
.
if(clickbutton==thisButton)
{
second sec= new second();
.
.
}

class second{
..
..
public void actionPerformed(ActionEvent e)
.
.
if(clickbutton==thisButton)
{
String thisvariable= getalgorithm(...)
.
.
}

How can I pass the string thisvariable back to the first.class ??

I can use return method becos it is under void actionPerformed(...)

ASKER CERTIFIED SOLUTION

superschlonz

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TLTEO

ASKER

IC. seems to be getting it now. I am happy that you understand what I meant. Tot I have read this method before but forgot. Let me test it and return to you again . Cheers superschlonz

sengsational

Here's another way. You pass a reference of the first class to the second. That way you can run the setMyString method. Or you could just make myString public and set it directly.

class first{
private String myString;
..
public void setMyString(String s){
myString = s;
}
..
public void actionPerformed(ActionEvent e)
.
.
if(clickbutton==thisButton)
{
second sec= new second(this);
.
.
}

class second{
private first otherclass;
// constructor
public second(first t){
otherClass = t;
}
..
..
public void actionPerformed(ActionEvent e)
.
.
if(clickbutton==thisButton)
{
String thisvariable= getalgorithm(...)
otherClass.setMyString(thisvariable);
.
.
}

TLTEO

ASKER

tks to sensational too. great help cheers