Display shape drawn from another class

[jj007]

Hi I draw a shape in one class but i need it do actually appear when i play another class. The class I wish to play from extends from a gui class which will draw the frame. So all that is required is for the shape to draw.

Rect class:

package work;

import java.awt.*;
import java.awt.event.*;
import java.awt.Graphics2D;


class Rect extends Shapes{

	
	public Rect(int x, int y, int w, int h) {
		super(x,y,w,h);
		
	}

	public void draw(Graphics2D g) {
		g.setColor(Color.black);
		g.fillRect(x, y, w, h);
	}
	
	public static void main(String[] args) {
	}

}

Test class which draws shape using gui:

package work;

public class TestDraw extends Gui implements ShapeListener {

	public TestDraw(){
		Rect rect = new Rect(20, 20, 200, 100);
		rect.addListener(this);
		
	}
	
	public static void main(String[] args) {
		new TestDraw();
		
	}

}

[Fubarable]

What is a Gui class? Are you supposed to add your Rect object to something? You create it, but don't do anything with it (that I can tell). What is the contract for the ShapeListener interface?

Also, it's usually good practice to answer the replies in previous threads before starting a new one.

[jj007]

the gui class has the coding for jframe and jpanels etc. I can play draw the rect in the same class by saying:

 Gui rect = new Rect(20,20,100,100);
//Gui has a go method which repaints.
 rect.go();

but how can i do something similar but actually call it in the other class?

[Fubarable]

There are too many unknowns here for me, seeing as how I have absolutely no knowledge of what's going on in your other classes.

[jj007]

i have tested something and it seems like theres a problem with the class constructor for rect...aparantly its not inputting the values into the draw method in order to draw the shape. Can you help?

[Norm]

Do you get any error messages? If so please post.

aparantly its not inputting the values into the draw method i

Can you explain what happens and why you think this is happening?

Can you post a small program that compiles, executes and shows the problem?