[填空题] 阅读下面代码: import java.awt.*; public class Exam11_2 public static void main (String args[]
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[填空题] 阅读下面代码:
import java.awt.*;
public class Exam11_2
public static void main (String args[])
______;
f.add("North",new Button("North"));
f.add("South",new Button("South"));
f.add("East",new Button("East"));;
f.add("West",new Button("West"));
f.add("Center",new Button("Center"));
f.pack();
f.setVisible(true);
请在程序中的画线处添上适当的语句______,使程序能正确执行。
参考答案: