Java 试图在JTabbedPane上动态生成包含内容的选项卡，但线程中出现异常；AWT-EventQueue-0“；
我试图根据用户提供的输入动态生成选项卡及其包含的文本字段。所示代码中的输入不是CPFlows。但是，当我运行代码时，我总是遇到以下异常：Java 试图在JTabbedPane上动态生成包含内容的选项卡，但线程中出现异常；AWT-EventQueue-0“；,java,swing,awt,indexoutofboundsexception,jtabbedpane,Java,Swing,Awt,Indexoutofboundsexception,Jtabbedpane,我试图根据用户提供的输入动态生成选项卡及其包含的文本字段。所示代码中的输入不是CPFlows。但是，当我运行代码时，我总是遇到以下异常： Exception in thread "AWT-EventQueue-0" java.lang.IndexOutOfBoundsException: Index: 1, Size: 0 at java.util.ArrayList.rangeCheck(ArrayList.java:635) at java.util.ArrayList.ge
Exception in thread "AWT-EventQueue-0" java.lang.IndexOutOfBoundsException: Index: 1, Size: 0
at java.util.ArrayList.rangeCheck(ArrayList.java:635)
at java.util.ArrayList.get(ArrayList.java:411)
at javax.swing.JTabbedPane.setTitleAt(JTabbedPane.java:1316)
at myproject.ns2GUI.trafficInfoInit(ns2GUI.java:622)
at myproject.ns2GUI.flowDetailsContinueActionPerformed(ns2GUI.java:567)
at myproject.ns2GUI.access$200(ns2GUI.java:16)
at myproject.ns2GUI$3.actionPerformed(ns2GUI.java:343)
at javax.swing.AbstractButton.fireActionPerformed(AbstractButton.java:2018)
at javax.swing.AbstractButton$Handler.actionPerformed(AbstractButton.java:2341)
at javax.swing.DefaultButtonModel.fireActionPerformed(DefaultButtonModel.java:402)
at javax.swing.DefaultButtonModel.setPressed(DefaultButtonModel.java:259)
at javax.swing.plaf.basic.BasicButtonListener.mouseReleased(BasicButtonListener.java:252)
at java.awt.Component.processMouseEvent(Component.java:6505)
at javax.swing.JComponent.processMouseEvent(JComponent.java:3320)
at java.awt.Component.processEvent(Component.java:6270)
at java.awt.Container.processEvent(Container.java:2229)
at java.awt.Component.dispatchEventImpl(Component.java:4861)
at java.awt.Container.dispatchEventImpl(Container.java:2287)
at java.awt.Component.dispatchEvent(Component.java:4687)
at java.awt.LightweightDispatcher.retargetMouseEvent(Container.java:4832)
at java.awt.LightweightDispatcher.processMouseEvent(Container.java:4492)
at java.awt.LightweightDispatcher.dispatchEvent(Container.java:4422)
at java.awt.Container.dispatchEventImpl(Container.java:2273)
at java.awt.Window.dispatchEventImpl(Window.java:2719)
at java.awt.Component.dispatchEvent(Component.java:4687)
at java.awt.EventQueue.dispatchEventImpl(EventQueue.java:735)
at java.awt.EventQueue.access$200(EventQueue.java:103)
at java.awt.EventQueue$3.run(EventQueue.java:694)
at java.awt.EventQueue$3.run(EventQueue.java:692)
at java.security.AccessController.doPrivileged(Native Method)
at java.security.ProtectionDomain$1.doIntersectionPrivilege(ProtectionDomain.java:76)
at java.security.ProtectionDomain$1.doIntersectionPrivilege(ProtectionDomain.java:87)
at java.awt.EventQueue$4.run(EventQueue.java:708)
at java.awt.EventQueue$4.run(EventQueue.java:706)
at java.security.AccessController.doPrivileged(Native Method)
at java.security.ProtectionDomain$1.doIntersectionPrivilege(ProtectionDomain.java:76)
at java.awt.EventQueue.dispatchEvent(EventQueue.java:705)
at java.awt.EventDispatchThread.pumpOneEventForFilters(EventDispatchThread.java:242)
at java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.java:161)
at java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:150)
at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:146)
at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:138)
at java.awt.EventDispatchThread.run(EventDispatchThread.java:91)
package myproject;
import java.awt.*;
import java.awt.CardLayout;
import javax.swing.*;
public class ns2GUI extends javax.swing.JFrame {
private CardLayout laycard;
public int noTCPFlows,noUDPFlows,totalFlows;
public ns2GUI() {
initComponents();
laycard = new CardLayout();
mainPanel.setLayout(laycard);
mainPanel.add("scenarioParameters",scenarioParameters);
mainPanel.add("nodeVisualization",nodeVisualization);
mainPanel.add("flowDetails",flowDetails);
mainPanel.add("trafficInfo",trafficInformation);
laycard.show(mainPanel,"scenarioParameters");
}
public void goScenarioParams() {
laycard.show(mainPanel,"scenarioParameters");
}
public void goNodeVisualization() {
laycard.show(mainPanel,"nodeVisualization");
}
public void goFlowDetails() {
laycard.show(mainPanel,"flowDetails");
}
public void goTrafficInfo() {
laycard.show(mainPanel,"trafficInfo");
}
private void scenarioParamsClearActionPerformed(java.awt.event.ActionEvent evt) {
// TODO add your handling code here:
simTime.setText(" ");
noNodes.setText(" ");
tSizeX.setText(" ");
tSizeY.setText(" ");
initEnergy.setText(" ");
transmitPower.setText(" ");
recPower.setText(" ");
}
private void scenarioParamsOkActionPerformed(java.awt.event.ActionEvent evt) {
// TODO add your handling code here:
goFlowDetails();
}
private void enterDetailsActionPerformed(java.awt.event.ActionEvent evt) {
// TODO add your handling code here:
srcSinkPanel.removeAll();
srcSinkPanel.setLayout(new GridLayout(0,1));
noTCPFlows = Integer.parseInt(noTcpFlows.getText());
noUDPFlows = Integer.parseInt(noUdpFlows.getText());
totalFlows = noTCPFlows + noUDPFlows;
String tcpLabel = "TCP Flow ";
String udpLabel = "UDP Flow ";
String source = "source";
String sink = "sink";
String panel = "panel";
int gridSize = 3;
int i = 0;
//loop for TCP flows
for(int k=0;k<noTCPFlows; k++) {
JLabel jL = new JLabel(tcpLabel + k);
JTextField jT1 = new JTextField(source + k,10);
JTextField jT2 = new JTextField(sink + k,10);
jT1.setText(" ");
jT2.setText(" ");
String panelName = panel + i++;
JPanel jP = new JPanel();
jP.add(jL);
jP.add(jT1);
jP.add(jT2);
jP.setLayout( new GridLayout( 1, gridSize ) );
srcSinkPanel.add(jP);
}
//loop for UDP flows
for(int j=0;j<noUDPFlows; j++) {
JLabel jL = new JLabel(udpLabel + j);
JTextField jT1 = new JTextField(source + j,10);
JTextField jT2 = new JTextField(sink + j,10);
jT1.setText(" ");
jT2.setText(" ");
String panelName = panel + i++;
JPanel jP = new JPanel();
jP.add(jL);
jP.add(jT1);
jP.add(jT2);
jP.setLayout( new GridLayout( 1, gridSize ) );
srcSinkPanel.add(jP);
}
//add the Source Sink panel
srcSinkPanel.revalidate();
}
private void flowDetailsBackActionPerformed(java.awt.event.ActionEvent evt) {
// TODO add your handling code here:
goScenarioParams();
}
private void flowDetailsContinueActionPerformed(java.awt.event.ActionEvent evt) {
// TODO add your handling code here:
goTrafficInfo();
trafficInfoInit();
}
public void trafficInfoInit() {
String tabName = "tab";
String tcpLabel = "TCP Flow";
String udpLabel = "UDP Flow ";
String[] flowType = {"CBR","FTP","Exponential"};
int countTcp = 1;
int countUdp = 1;
//Main Panel contents
JPanel[] jP = new JPanel[noTCPFlows];
JLabel[] jL =new JLabel[noTCPFlows];
JComboBox[] jCb = new JComboBox[noTCPFlows];
//option panels
JPanel[] cbrParams = new JPanel[noTCPFlows];
JPanel[] expoParams = new JPanel[noTCPFlows];
JPanel[] ftpParams = new JPanel[noTCPFlows];
//CBR Contents
JLabel[] jL1Cbr = new JLabel[noTCPFlows];
JLabel[] jL2Cbr = new JLabel[noTCPFlows];
JLabel[] jL3Cbr = new JLabel[noTCPFlows];
JLabel[] jL4Cbr = new JLabel[noTCPFlows];
JTextField[] cbrPacketSize = new JTextField[noTCPFlows];
JTextField[] cbrRate = new JTextField[noTCPFlows];
JTextField[] cbrInterPacketInt = new JTextField[noTCPFlows];
JTextField[] cbrMaxPackets = new JTextField[noTCPFlows];
//Expo contents
JLabel[] jL1Expo = new JLabel[noTCPFlows];
JLabel[] jL2Expo = new JLabel[noTCPFlows];
JLabel[] jL3Expo = new JLabel[noTCPFlows];
JLabel[] jL4Expo = new JLabel[noTCPFlows];
JTextField[] expoPacketSize = new JTextField[noTCPFlows];
JTextField[] expoRate = new JTextField[noTCPFlows];
JTextField[] expoBurstTime = new JTextField[noTCPFlows];
JTextField[] expoIdealTime = new JTextField[noTCPFlows];
//FTP Contents
JLabel[] jL1Ftp = new JLabel[noTCPFlows];
JLabel[] jL2Ftp = new JLabel[noTCPFlows];
JTextField[] ftpMaxPackets = new JTextField[noTCPFlows];
JTextField[] ftpMoreCountPackets = new JTextField[noTCPFlows];
JPanel[] jP2 = new JPanel[noTCPFlows];
CardLayout[] layPanelCard = new CardLayout[noTCPFlows];
for( int i = 0; i<noTCPFlows; i++) {
//create a new tab & set title
jP[i] = new JPanel();
jP[i].setLayout(new GridLayout(2,2));
countTcp++;
//create the flow type label and combo box
jL[i] = new JLabel("Flow Type:");
jCb[i] = new JComboBox(flowType);
//create the options panels
//CBR Panel
cbrParams[i] = new JPanel();
jL1Cbr[i] = new JLabel("Packet Size");
cbrPacketSize[i] = new JTextField();
jL2Cbr[i] = new JLabel("Rate");
cbrRate[i] = new JTextField();
jL3Cbr[i] = new JLabel("Inter Packet Interval");
cbrInterPacketInt[i] = new JTextField();
jL4Cbr[i] = new JLabel("Maximum Packets");
cbrMaxPackets[i] = new JTextField();
cbrParams[i].add(jL1Cbr[i]);
cbrParams[i].add(cbrPacketSize[i]);
cbrParams[i].add(jL2Cbr[i]);
cbrParams[i].add(cbrRate[i]);
cbrParams[i].add(jL3Cbr[i]);
cbrParams[i].add(cbrInterPacketInt[i]);
cbrParams[i].add(jL4Cbr[i]);
cbrParams[i].add(cbrMaxPackets[i]);
//Expo Panel
expoParams[i] = new JPanel();
jL1Expo[i] = new JLabel("Packet Size");
expoPacketSize[i] = new JTextField();
jL2Expo[i] = new JLabel("Rate");
expoRate[i] = new JTextField();
jL3Expo[i] = new JLabel("Burst Time");
expoBurstTime[i] = new JTextField();
jL4Expo[i] = new JLabel("Ideal Time");
expoIdealTime[i] = new JTextField();
expoParams[i].add(jL1Expo[i]);
expoParams[i].add(cbrPacketSize[i]);
expoParams[i].add(jL2Expo[i]);
expoParams[i].add(cbrRate[i]);
expoParams[i].add(jL3Expo[i]);
expoParams[i].add(cbrInterPacketInt[i]);
expoParams[i].add(jL4Expo[i]);
expoParams[i].add(cbrMaxPackets[i]);
//FTP Panel
ftpParams[i] = new JPanel();
jL1Ftp[i] = new JLabel("Max Number Packets");
ftpMaxPackets[i] = new JTextField();
jL2Ftp[i] = new JLabel("More Count Packets");
ftpMoreCountPackets[i] = new JTextField();
//create a CardLayout for the options presented
layPanelCard[i] = new CardLayout();
jP2[i].setLayout(layPanelCard[i]);
jP2[i].add("cbrParams",cbrParams[i]);
jP2[i].add("expoParams",expoParams[i]);
jP2[i].add("ftpParams",ftpParams[i]);
layPanelCard[i].show(jP2[i],"cbrParams");
//add it all to the tab
jP[i].add(jL[i]);
jP[i].add(jCb[i]);
jP[i].add(jP2[i]);
//add the tab to the tabbedPane
trafficInfo.addTab(tabName+i,jP[i]);
//trafficInfo.setTitleAt(countTcp,tcpLabel);
}
trafficInfo.updateUI();
}
public static void main(String args[]) {
try {
for (javax.swing.UIManager.LookAndFeelInfo info : javax.swing.UIManager.getInstalledLookAndFeels()) {
if ("Nimbus".equals(info.getName())) {
javax.swing.UIManager.setLookAndFeel(info.getClassName());
break;
}
}
} catch (ClassNotFoundException ex) {
java.util.logging.Logger.getLogger(ns2GUI.class.getName()).log(java.util.logging.Level.SEVERE, null, ex);
} catch (InstantiationException ex) {
java.util.logging.Logger.getLogger(ns2GUI.class.getName()).log(java.util.logging.Level.SEVERE, null, ex);
} catch (IllegalAccessException ex) {
java.util.logging.Logger.getLogger(ns2GUI.class.getName()).log(java.util.logging.Level.SEVERE, null, ex);
} catch (javax.swing.UnsupportedLookAndFeelException ex) {
java.util.logging.Logger.getLogger(ns2GUI.class.getName()).log(java.util.logging.Level.SEVERE, null, ex);
}
//</editor-fold>
/* Create and display the form */
java.awt.EventQueue.invokeLater(new Runnable() {
@Override
public void run() {
new ns2GUI().setVisible(true);
}
});
}
// Variables declaration - do not modify
}
包我的项目；
导入java.awt.*；
导入java.awt.CardLayout；
导入javax.swing.*；
公共类ns2GUI扩展了javax.swing.JFrame{
私人卡；
公共int-noTCPFlows、noUDPFlows、totalFlows；
公共ns2GUI（）{
初始化组件（）；
laycard=新卡布局（）；
主面板。设置布局（laycard）；
主面板。添加（“场景参数”，场景参数）；
添加（“节点可视化”，节点可视化）；
主面板。添加（“flowDetails”，flowDetails）；
主面板。添加（“trafficInfo”，trafficInformation）；
显示（主面板，“场景参数”）；
}
公共无效goScenarioParams（）{
显示（主面板，“场景参数”）；
}
公共空间可视化（）{
laycard.show（主面板，“节点可视化”）；
}
公共数据流详细信息（）{
laycard.show（主面板，“流程详细信息”）；
}
公共信息{
laycard.show（主面板，“trafficInfo”）；
}
private void scenarioParamsClearActionPerformed（java.awt.event.ActionEvent evt）{
//TODO在此处添加您的处理代码：
simTime.setText（“”）；
noNodes.setText（“”）；
tSizeX.setText（“”）；
tSizeY.setText（“”）；
initEnergy.setText（“”）；
transmitPower.setText（“”）；
recPower.setText（“”）；
}
private void ScenarioParamSokaActionPerformed（java.awt.event.ActionEvent evt）{
//TODO在此处添加您的处理代码：
goFlowDetails（）；
}
私有无效enterDetailsActionPerformed（java.awt.event.ActionEvent evt）{
//TODO在此处添加您的处理代码：
srcSinkPanel.removeAll（）；
setLayout（新的GridLayout（0,1））；
noTCPFlows=Integer.parseInt（noTCPFlows.getText（））；
noUDPFlows=Integer.parseInt（noUDPFlows.getText（））；
totalFlows=noTCPFlows+noUDPFlows；
字符串tcpLabel=“TCP流”；
字符串udpLabel=“UDP流”；
字符串source=“source”；
字符串sink=“sink”；
字符串panel=“panel”；
int gridSize=3；
int i=0；
//TCP流的循环
对于（int k=0；k
看起来countTcp
有点不正确。可能没有正确初始化已修复！我忘记在JPanel数组声明之后初始化JPanel
//did this
JPanel[] jP2 = new JPanel[noTCPFlows];
//rest of the code
//forgot to add this line
JPanel jP2[i] = new JPanel();
初始化JPanel修复了所有问题。
谢谢你的建议！谢谢你的回复。我更改了标签并检查了它。甚至对这一行进行了注释并尝试了。仍然不起作用。很抱歉我的错误。问题是countTcp index。stacktrace说你正在尝试将标题设置为tab 1，但有0个tab。我尝试对该行进行注释，但仍然没有成功。我将编辑提问并发布整个程序。不要使用updateUI（）
方法。更改LAF时会使用该方法。数组太多。对于相关数据，应创建一个自定义对象来存储此数据。然后将该对象添加到ArrayList（因为ArrayList比数组更具动态性）。此外，您的GUI看起来相当复杂，因为您正在为所有数据创建单独的Swing组件。也许您应该使用。此外，发布的代码无法编译。您需要发布一个。修复了！问题是其中一个JPanel未初始化。感谢大家的尝试！
//did this
JPanel[] jP2 = new JPanel[noTCPFlows];
//rest of the code
//forgot to add this line
JPanel jP2[i] = new JPanel();