Topic: 求助高手setDefaultCloseOperation() extends JFrame问题 |
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1.求助高手setDefaultCloseOperation() extends JFrame问题 | Copy to clipboard |
Posted by: needd Posted on: 2005-10-04 01:34 程序如下 import javax.swing.*; import java.awt.*; public class why { public static void main(String args[]){ a frame=new a(); frame.setDefaultCloseOperation(); } } class a extends JFrame //这样子在frame中可以调用 { //setDefaultCloseOperation()方法 } //但是把JFRAMe和jPanel交换,就掉不出来了? class a extends JPanel { } import javax.swing.*; import java.awt.*; public class why { public static void main(String args[]){ a frame=new a(); frame. // } } class a extends JPanel { } class a extends JFrame { } 难道java中Jpanel和JFrame类继承顺序有区别? |
2.Re:求助高手setDefaultCloseOperation() extends JFrame问题 [Re: needd] | Copy to clipboard |
Posted by: awardwy Posted on: 2005-10-04 08:40 晕 JAVA什么时候支持多继承了啊! 你这个可以通过编译吗? |
3.Re:求助高手setDefaultCloseOperation() extends JFrame问题 [Re: needd] | Copy to clipboard |
Posted by: needd Posted on: 2005-10-06 22:01 忘了,谢了,我太菜了 |
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