对话框? 是不是你设置它们为模态对话框了(就是说必需关闭最后打开的对话框才能关闭倒数二打开的对话框)。要不我直接建四个JDialog,然后一个调用一个,可以成功调用Dialog4 解决方案 » 免费领取超大流量手机卡,每月29元包185G流量+100分钟通话, 中国电信官方发货 没有问题,可能是你程序中作了什么操作导致的。贴Dialog3代码上来。 我在jbuilder 6中不知用一个applet生成一个frame后产生一个dialog1,再产生一个dialog2,从中再产生一个dialog3到这地方就不行了。以下是fame1.dialog1,dialog2,dialog3,代码。package junk;import java.awt.*;import javax.swing.*;import java.awt.event.*;/** * <p>Title: </p> * <p>Description: </p> * <p>Copyright: Copyright (c) 2002</p> * <p>Company: </p> * @author unascribed * @version 1.0 */public class Frame1 extends JFrame { JPanel jPanel1 = new JPanel(); JButton jButton1 = new JButton(); public Frame1() { try { jbInit(); } catch(Exception e) { e.printStackTrace(); } } private void jbInit() throws Exception { jPanel1.setLayout(null); jButton1.setBounds(new Rectangle(103, 76, 116, 41)); jButton1.setText("this is frame"); jButton1.addActionListener(new java.awt.event.ActionListener() { public void actionPerformed(ActionEvent e) { jButton1_actionPerformed(e); } }); this.getContentPane().add(jPanel1, BorderLayout.CENTER); jPanel1.add(jButton1, null); } void jButton1_actionPerformed(ActionEvent e) {Dialog1 d1=new Dialog1(this,"hell",true);d1.show() ; }}/***************dialog1package junk;import java.awt.*;import javax.swing.*;import java.awt.event.*;/** * <p>Title: </p> * <p>Description: </p> * <p>Copyright: Copyright (c) 2002</p> * <p>Company: </p> * @author unascribed * @version 1.0 */public class Dialog1 extends JDialog { JPanel panel1 = new JPanel(); JButton jButton1 = new JButton(); public Dialog1(Frame frame, String title, boolean modal) { super(frame, title, modal); try { jbInit(); pack(); } catch(Exception ex) { ex.printStackTrace(); } } public Dialog1() { this(null, "", false); } void jbInit() throws Exception { panel1.setLayout(null); jButton1.setBounds(new Rectangle(53, 53, 206, 46)); jButton1.setText("this is dialog1"); jButton1.addActionListener(new java.awt.event.ActionListener() { public void actionPerformed(ActionEvent e) { jButton1_actionPerformed(e); } }); getContentPane().add(panel1, BorderLayout.CENTER); panel1.add(jButton1, null); } void jButton1_actionPerformed(ActionEvent e) {Dialog2 d2=new Dialog2();d2.show() ; }}/*****package junk;import java.awt.*;import javax.swing.*;import java.awt.event.*;/** * <p>Title: </p> * <p>Description: </p> * <p>Copyright: Copyright (c) 2002</p> * <p>Company: </p> * @author unascribed * @version 1.0 */public class Dialog2 extends JDialog { JPanel panel1 = new JPanel(); JButton jButton1 = new JButton(); public Dialog2(Frame frame, String title, boolean modal) { super(frame, title, modal); try { jbInit(); pack(); } catch(Exception ex) { ex.printStackTrace(); } } public Dialog2() { this(null, "", false); } void jbInit() throws Exception { panel1.setLayout(null); jButton1.setBounds(new Rectangle(78, 65, 119, 32)); jButton1.setText("this is dialog2"); jButton1.addActionListener(new java.awt.event.ActionListener() { public void actionPerformed(ActionEvent e) { jButton1_actionPerformed(e); } }); getContentPane().add(panel1, BorderLayout.CENTER); panel1.add(jButton1, null); } void jButton1_actionPerformed(ActionEvent e) {Dialog3 d3=new Dialog3();d3.show() ; }}/*****package junk;import java.awt.*;import javax.swing.*;import java.awt.event.*;/** * <p>Title: </p> * <p>Description: </p> * <p>Copyright: Copyright (c) 2002</p> * <p>Company: </p> * @author unascribed * @version 1.0 */public class Dialog3 extends JDialog { JPanel panel1 = new JPanel(); JButton jButton1 = new JButton(); public Dialog3(Frame frame, String title, boolean modal) { super(frame, title, modal); try { jbInit(); pack(); } catch(Exception ex) { ex.printStackTrace(); } } public Dialog3() { this(null, "", false); } void jbInit() throws Exception { panel1.setLayout(null); jButton1.setBounds(new Rectangle(89, 52, 140, 43)); jButton1.setText("this is dialog3"); jButton1.addActionListener(new java.awt.event.ActionListener() { public void actionPerformed(ActionEvent e) { jButton1_actionPerformed(e); } }); getContentPane().add(panel1, BorderLayout.CENTER); panel1.add(jButton1, null); } void jButton1_actionPerformed(ActionEvent e) {Dialog4 d4=new Dialog4();d4.show() ; }} 【String内容为空行】奇怪的问题? paint方法 我是新手,请大家帮帮忙,多谢! 我刚学习java不知道学习的方向给的意见啊!!! 急,急,急,在线等待,用JAVA模拟交通灯的显示。 java好学吗? 怎么才能使一个.java文件在jbuilder中得到编译通过并运行?? 同一个程序,在NT上通过,在XP上报错. 请进 询问学习方向 我是java的初学者,有些问题要问 applet与js通信的问题
贴Dialog3代码上来。
package junk;import java.awt.*;
import javax.swing.*;
import java.awt.event.*;/**
* <p>Title: </p>
* <p>Description: </p>
* <p>Copyright: Copyright (c) 2002</p>
* <p>Company: </p>
* @author unascribed
* @version 1.0
*/public class Frame1 extends JFrame {
JPanel jPanel1 = new JPanel();
JButton jButton1 = new JButton(); public Frame1() {
try {
jbInit();
}
catch(Exception e) {
e.printStackTrace();
}
}
private void jbInit() throws Exception {
jPanel1.setLayout(null);
jButton1.setBounds(new Rectangle(103, 76, 116, 41));
jButton1.setText("this is frame");
jButton1.addActionListener(new java.awt.event.ActionListener() {
public void actionPerformed(ActionEvent e) {
jButton1_actionPerformed(e);
}
});
this.getContentPane().add(jPanel1, BorderLayout.CENTER);
jPanel1.add(jButton1, null);
} void jButton1_actionPerformed(ActionEvent e) {
Dialog1 d1=new Dialog1(this,"hell",true);
d1.show() ;
}
}
/***************
dialog1
package junk;import java.awt.*;
import javax.swing.*;
import java.awt.event.*;/**
* <p>Title: </p>
* <p>Description: </p>
* <p>Copyright: Copyright (c) 2002</p>
* <p>Company: </p>
* @author unascribed
* @version 1.0
*/public class Dialog1 extends JDialog {
JPanel panel1 = new JPanel();
JButton jButton1 = new JButton(); public Dialog1(Frame frame, String title, boolean modal) {
super(frame, title, modal);
try {
jbInit();
pack();
}
catch(Exception ex) {
ex.printStackTrace();
}
} public Dialog1() {
this(null, "", false);
}
void jbInit() throws Exception {
panel1.setLayout(null);
jButton1.setBounds(new Rectangle(53, 53, 206, 46));
jButton1.setText("this is dialog1");
jButton1.addActionListener(new java.awt.event.ActionListener() {
public void actionPerformed(ActionEvent e) {
jButton1_actionPerformed(e);
}
});
getContentPane().add(panel1, BorderLayout.CENTER);
panel1.add(jButton1, null);
} void jButton1_actionPerformed(ActionEvent e) {
Dialog2 d2=new Dialog2();
d2.show() ;
}
}
/*****
package junk;import java.awt.*;
import javax.swing.*;
import java.awt.event.*;/**
* <p>Title: </p>
* <p>Description: </p>
* <p>Copyright: Copyright (c) 2002</p>
* <p>Company: </p>
* @author unascribed
* @version 1.0
*/public class Dialog2 extends JDialog {
JPanel panel1 = new JPanel();
JButton jButton1 = new JButton(); public Dialog2(Frame frame, String title, boolean modal) {
super(frame, title, modal);
try {
jbInit();
pack();
}
catch(Exception ex) {
ex.printStackTrace();
}
} public Dialog2() {
this(null, "", false);
}
void jbInit() throws Exception {
panel1.setLayout(null);
jButton1.setBounds(new Rectangle(78, 65, 119, 32));
jButton1.setText("this is dialog2");
jButton1.addActionListener(new java.awt.event.ActionListener() {
public void actionPerformed(ActionEvent e) {
jButton1_actionPerformed(e);
}
});
getContentPane().add(panel1, BorderLayout.CENTER);
panel1.add(jButton1, null);
} void jButton1_actionPerformed(ActionEvent e) {
Dialog3 d3=new Dialog3();
d3.show() ;
}
}
/*****
package junk;import java.awt.*;
import javax.swing.*;
import java.awt.event.*;/**
* <p>Title: </p>
* <p>Description: </p>
* <p>Copyright: Copyright (c) 2002</p>
* <p>Company: </p>
* @author unascribed
* @version 1.0
*/public class Dialog3 extends JDialog {
JPanel panel1 = new JPanel();
JButton jButton1 = new JButton(); public Dialog3(Frame frame, String title, boolean modal) {
super(frame, title, modal);
try {
jbInit();
pack();
}
catch(Exception ex) {
ex.printStackTrace();
}
} public Dialog3() {
this(null, "", false);
}
void jbInit() throws Exception {
panel1.setLayout(null);
jButton1.setBounds(new Rectangle(89, 52, 140, 43));
jButton1.setText("this is dialog3");
jButton1.addActionListener(new java.awt.event.ActionListener() {
public void actionPerformed(ActionEvent e) {
jButton1_actionPerformed(e);
}
});
getContentPane().add(panel1, BorderLayout.CENTER);
panel1.add(jButton1, null);
} void jButton1_actionPerformed(ActionEvent e) {
Dialog4 d4=new Dialog4();
d4.show() ;
}
}