crosshair.java

来自「java2编程21天自学通中的源码」· Java 代码 · 共 13 行

import java.awt.*;

public class CrossHair extends java.applet.Applet {
    String mark = "+";

    public void paint(Graphics screen) {
        Dimension appletWindow = size();
        int height = appletWindow.height;
        int width = appletWindow.width;
        screen.drawString(mark, width/2, height/2);
    }
}