java // 定义一个名为VERSION的宏变量

// 定义一个捕获异常宏 #define TRY_CATCH \ try { \ {code} \ } catch { \ e.printStackTrace; \ } finally { \ try { \ socket.close; \ } catch { \ e.printStackTrace; \ } \ }

// 定义一个事件类型

public class Main { public static void main { // 用宏定义对窗口进行设置 #define WIDTH 800 #define HEIGHT 600 #define TITLE "Java Macro Tutorial" Window w = new Window; w.show;

    // 用宏定义来处理异常
    Socket socket = null;
    TRY_CATCH(socket, {
        socket = new Socket;
        PrintWriter out = new PrintWriter);
        out.print;
        out.flush;
    });
    // 用宏定义进行消息处理
    int eventCode = EVENT_CLICK;
    if  {
        System.out.println;
    } else if  {
        System.out.println;
    }
}

}

public class Window { private int width; private int height; private String title;

public Window {
    this.width = width;
    this.height = height;
    this.title = title;
}
public void show {
    System.out.println;
}

}