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Thread: getDocumentBase error

  1. #1
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    Default getDocumentBase error

    note i want to do this code in background class. not in main class.
    so i have a main class and a background class.

    getting error at
    url = getDocumentBase();
    also getting error at
    getImage
    drawImage


    background class
    import java.awt.Color;
    import java.awt.Graphics;
    import java.awt.Image;
    import java.awt.Rectangle;
    import java.net.URL;
     
    //#2
    public class Background 
    {
    	/* background image */
    	private URL url;
    	 private Image background_image1;
    	 private double bX1 = 0;
    	 private double bDX1 = 0.3;
     
    	 private Image background_image2;
    	 private double bX2 = 0;
    	 private double bDX2 = 1;
     
    	 private Main main_class = new Main();
     
    	/*** constructor Method ***/
    	public Background() 
    	{
    	}	
     
    	public void init() 
    	{
    		try
    		{
    			url = getDocumentBase();
    		}
    		catch(Exception e)
    		{
    		}
    		background_image1 = getImage(url, "image/background/background.png");
    		background_image2 = getImage(url, "image/background/background2.png");
    	}/*** end of init method ***/
     
     
     
    	/*** paint method ***/
    	public void paint(Graphics g) 
    	{
    		g.setColor(new Color(15, 77, 147));  //sky
    		g.fillRect(0,0,main_class.getWidth(), main_class.getHeight()); //sky
    		g.drawImage(background_image1, (int)bX1, 0, this);//backgroung image
    		g.drawImage(background_image1, (int)bX1 + main_class.getWidth(), 0, this);//backgroung image
    	}/*** paint method ***/
    }


  2. #2
    Administrator copeg's Avatar
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    Default Re: getDocumentBase error

    I see nothing in your code which specifies where these methods are defined...I'm presuming you are trying to access the methods of Applet, so you need a reference to this class to call its methods.

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