Topic: 紧急求助-运行报致命错,怎么也找不到程序中的错误 |
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1.紧急求助-运行报致命错,怎么也找不到程序中的错误 | Copy to clipboard |
Posted by: phoenix451 Posted on: 2005-12-06 10:40 import javax.swing.*; import java.awt.*; import java.awt.event.*; public class Debug7_3 extends JFrame { public Debug7_3( String titleText ) { super( titleText ); setDefaultCloseOperation( JFrame.EXIT_ON_CLOSE ); JButton[] buttons = new JButton[9]; for( int i=0; i<buttons.length; i++ ) { buttons[i] = new JButton( String.valueOf( i+1 ) ); add( buttons[i] ); } pack(); setVisible( true ); } public static void main( String[] args ) { new Debug7_3( "Debug Question" ); } } |
2.Re:紧急求助-运行报致命错,怎么也找不到程序中的错误 [Re: phoenix451] | Copy to clipboard |
Posted by: Infinite Posted on: 2005-12-06 13:35 import javax.swing.*; import java.awt.*; import java.awt.event.*; public class Debug7_3 extends JFrame { public Debug7_3( String titleText ) { super( titleText ); setDefaultCloseOperation( JFrame.EXIT_ON_CLOSE ); JButton[] buttons = new JButton[9]; for( int i=0; i<buttons.length; i++ ) { buttons[i] = new JButton( String.valueOf( i+1 ) ); getContentPane().setLayout(new FlowLayout()); getContentPane().add( buttons[i] ); } pack(); setVisible( true ); } public static void main( String[] args ) { new Debug7_3( "Debug Question" ); } } |
3.Re:紧急求助-运行报致命错,怎么也找不到程序中的错误 [Re: phoenix451] | Copy to clipboard |
Posted by: phoenix451 Posted on: 2005-12-06 17:46 能告诉我为什么这么加吗? |
4.Re:紧急求助-运行报致命错,怎么也找不到程序中的错误 [Re: phoenix451] | Copy to clipboard |
Posted by: Infinite Posted on: 2005-12-06 21:10 不能直接向JFrame或JWindow中增加组件,而是应当将组件增加到自动创建的内容格,或者创建一个全新的内容格。建议好好看下书本,应该有介绍。 ================================================= phoenix451 wrote: |
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