![[单项选择题] 选择正确的语句填在下列程序的横线处。import java.awt.*;import java.awt.event.*;public class ex30{ Frame f;](http://www.mshxw.com/aiimages/31/258795.png "[单项选择题] 选择正确的语句填在下列程序的横线处。import java.awt.*;import java.awt.event.*;public class ex30{ Frame f;")
[单项选择题] 选择正确的语句填在下列程序的横线处。import java.awt.*;import java.awt.event.*;public class ex30{ frame f; public static void main(String[] args) { ex30 e = new ex30(); e. te st ( ); } public void test() { f = new frame("ex30"); ______ f.paok(); f.setVisible(true); } class MyWindowListener extends WindowAdapter { public void windowClosing(WindowEvent e){ System.exit(1);} } }
A．addWindowListener(new MyWindowtistener());
B．addWindowListener(MyWindowListener());
C．addWindowAdapter(new MyWindowListener());
D．addWindowListener(new MyWindowListener());
参考答案：
A问题解析:
解析无
