drawlinepointdemo.java

来自「java 完全探索的随书源码」· Java 代码 · 共 28 行

// DrawLinePointDemo.java

import java.awt.*;
import java.applet.Applet;

public class DrawLinePointDemo extends Applet
{
   public void paint (Graphics g)
   {
      // Get the width and height of the applet's drawing surface.

      int width = getSize ().width;
      int height = getSize ().height;

      g.drawLine (0, 0, width - 1, height - 1);
      g.drawLine (0, height - 1, width - 1, 0);

      int centerX = width / 2;
      int centerY = height / 2;

      for (int row = -5; row < 5; row++)
           for (int col = -5; col < 5; col++)
                g.drawLine (centerX + col, centerY + row,
                            centerX + col, centerY + row);
   }
}