Examples of java.awt.Graphics.dispose()

java.awt.Graphics.dispose()
Disposes of this graphics context and releases any system resources that it is using. A Graphics object cannot be used after disposehas been called.
When a Java program runs, a large number of Graphics objects can be created within a short time frame. Although the finalization process of the garbage collector also disposes of the same system resources, it is preferable to manually free the associated resources by calling this method rather than to rely on a finalization process which may not run to completion for a long period of time.
Graphics objects which are provided as arguments to the paint and update methods of components are automatically released by the system when those methods return. For efficiency, programmers should call dispose when finished using a Graphics object only if it was created directly from a component or another Graphics object. @see java.awt.Graphics#finalize @see java.awt.Component#paint @see java.awt.Component#update @see java.awt.Component#getGraphics @see java.awt.Graphics#create

    final Graphics graphics = gfx.create();
    graphics.setColor(value);
    graphics.fillRect(box.x, box.y, box.width, box.height);
    graphics.setColor(Color.BLACK);
    graphics.drawRect(box.x, box.y, box.width, box.height);
    graphics.dispose();
  }


  public String getJavaInitializationString()
  {
    return null;

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      }


      painting = false;
    }


    og.dispose();


    // finally draw it all centred
    g.drawImage(offscreen, (getWidth() - offscreen.getWidth(null))/2, (getHeight() - offscreen.getHeight(null))/2, null);
  }

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        g.drawImage(logoBuffer, progressbar.getWidth(null)/2-logo.getWidth(null)/2,
                    progressbar.getHeight(null)/2-logo.getHeight(null)/2, null);
      }


      g.drawImage(img, 0, 0, this);
      g.dispose();


      repaint();
    }


    return true;

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        // images and the paint it on top of a new BufferedImage
        Image img = new ImageIcon(url).getImage();
        BufferedImage bufferedImage = new BufferedImage(img.getWidth(null), img.getHeight(null), BufferedImage.TYPE_INT_RGB);
        Graphics g = bufferedImage.getGraphics();
        g.drawImage(img, 0, 0, null);
        g.dispose();


        return bufferedImage;
    }
}

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    final BufferedImage mask = new BufferedImage(img.getWidth(observer), img.getHeight(observer),
        BufferedImage.TYPE_BYTE_BINARY);
    final Graphics g = mask.getGraphics();
    g.fillRect(sx1, sy1, (int) swidth, (int) sheight);
    drawImage(img, mask, tx, null, observer);
    g.dispose();
    return true;
  }


  /**
   * @see Graphics#dispose()

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        BufferedImage bi = gc.createCompatibleImage(w, h, Transparency.TRANSLUCENT);
        
        Graphics g = bi.createGraphics();
        DcSwingUtilities.setRenderingHint(g);
        g.drawImage(image, 0, 0, w, h, null);
        g.dispose();
        
        bi.flush();
//        image.flush();
        
        return bi;

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        }


        byte[] formattedImage = getFormattedImage(imageFormatter,
                scaledWidth,
                scaledHeight);
        graphics.dispose();
        return formattedImage;
    }


    /**
     * Create a java.awt.Graphics to use for an image. The Graphics will affect

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    // objects, and (theoretically) the results should be identical.
    // If 'Print' is selected from the menu, the same methods wi
    // act on a Graphics object from the java.awt.PrintJob    


    doTest(javaGraphics, d);
    javaGraphics.dispose();


    // The whole pdf doc will be written when the program starts
    if ((!pdfDocumentAlreadyDone) && (pdfGraphics != null)) {
      doTest(pdfGraphics, d);
      pdfGraphics.dispose();

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                                        null); 
    if(pjob != null) {  
      Graphics printGraphics = pjob.getGraphics(); 
      if (currentPage == 1) {
        doTest(printGraphics, documentDimension); 
        printGraphics.dispose();
        pjob.end(); 
      }
      else {
        doSecondPageTest(printGraphics);
        printGraphics.dispose();

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        printGraphics.dispose();
        pjob.end(); 
      }
      else {
        doSecondPageTest(printGraphics);
        printGraphics.dispose();
        pjob.end();
      }
    } 
    else { 
      System.err.println("Can't print: printjob null");

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