canvasclass.java

介绍有关java的资料 课件 相当一本书籍 里面都是很基础的知识

package ClassShow;

import java.awt.*;

public class CanvasClass extends Canvas {

  private Canvas TestCanvas;
  private int xValue,yValue;

  public CanvasClass() {
    TestCanvas = new Canvas();
    TestCanvas.setBackground(Color.green);
    TestCanvas.resize( 64, 64 );
  }

  public void paint(Graphics g){
    g.fillOval(xValue,yValue,1,1);
  }

  public void setXY(int x,int y){
    xValue = x;
    yValue = y;
    repaint();
  }
}