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Message:

java swing, passing parameters

Posted by Niamh Phelan on January 05, 2002 at 8:45 AM

Hi, my question is very simple, why does the following code not work???!!! I have made a myFrame.java which calls chartPanel.java
in the following way

mychartPanel = new chartPanel(attributes);

I have indicated in the code below how far the code runs. attributes is a vector containing objects of the type attribute(a class i have defined)

THE CODE

public class chartPanel extends JPanel {
public chartPanel(Vector attributes)
{
//*********************************************************
System.out.println("got this far");
}

private int x1;
private int x2;
private int y1;
private int rectWidth;
private int rectHeight;

public void paintComponent(Graphics g, Vector attributes)
{
//**********************************************************
System.out.println("didnt get this far");

super.paintComponent(g); //paint background

for(int i=0;i {
attribute a = (attribute)attributes.elementAt(i);
x1 = a.getStart();
x2 = a.getFinish();

...
...
}
}

}