Computer Science Canada

drawing on panels

Author:

da_jugganaut [ Tue Apr 19, 2005 10:54 pm ]

Post subject:

drawing on panels

hi, im making a program for compsci class. it involves clicking various radio buttons on one panel to change the shape which is drawn on a different panel.

the structure of my code is like this :

code:

public class RadioShapes extends JFrame
{
public RadioShapes(){}
public void paintComponent(){}
class RadioButtonListener implements actionListener
{
public void actionPerformed(ActionEvent e){}
}
}

the class RadioButtonListener waits for the user to click on a specific button. the actionPerformed method recognizes that and assigns an int value of 1, 2 or 3 to a variable. the paintComponent reads this variable then draws the shape on the panel for the shapes.

the problem i have here is - in paintComponent, how do i specify which panel to draw to? my program compiles and executes, but the shapes do not appear. the listeners are working just fine. any ideas?
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