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  1. #1
    Join Date
    Dec 2008
    Posts
    10
    Rep Power
    0

    Default Having trouble understanding Class Graphic

    Ok, i am trying to draw circles with a circle object on a jFrame with the input of the user taken with the scan.nextDouble() method, I am in way over my head sadly and I am doing things without fully understanding them. I have only just begun doing graphic, when i say begun we just learned how to make a jFrame. So am i here to ask you for help in understanding
    A. how do use an can i use an Abstract class like Graphic with initializing it. i need to use the method circle.getAbscisse() getRadius etc...Any help would be appreciated.

    Most of this code comes from reading forums and wikis, i understand most of it but I am just confused on how to apply my circles to these methods. Thank you for taking the time to read
    Java Code:
    /**
     * @(#)MyCanvas.java
     *
     * MyCanvas application
     *
     * @author 
     * @version 1.00 2009/3/1
     */
    import java.util.Scanner;
    import java.awt.*;
    import javax.swing.*;
    public class MyCanvas extends Canvas
    {
    	public static void main(String[] args)
        {
        	//System.out.println("Enter the x,y an radius values");
        	//Scanner scan = new Scanner(System.in);
        	//Cercle cerc = new Cercle(scan.nextDouble(),scan.nextDouble(),scan.nextDouble());
            MyCanvas canvas = new MyCanvas();
            JFrame frame = new JFrame();
            frame.setSize(800, 800);
            frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
            frame.getContentPane().add(canvas);
            frame.setVisible(true);
            //Graphics graphics;
            //graphics.drawLine(10, 20, 300, 310);
            
           
        }
        public MyCanvas()
        {
        }
        public void paint(Graphics graphics)
        {
     		
            graphics.setColor(Color.white);
            graphics.fillOval(10,10,25,25);
            graphics.setColor(Color.blue);
            graphics.drawOval(10,10,25,25);
    
        }
    
    }
    Last edited by Bernard Robitaille; 03-02-2009 at 05:23 PM. Reason: mistakes

  2. #2
    Incinsnodgigh Guest

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