我一直在NetBeans中运行JFrame来测试它，并且突然输出从JFrame的显示变为：
Java Result: -1073740940
我不知道是什么导致了这一点，因为我没有更改run方法中的任何内容，它影响了我的所有JFrame程序。有没有人知道造成这种情况的原因是什么？这是程序中的一个小故障还是我不小心切换了NetBeans的设置，我不知道？
更新：
以下是某人要求的程序代码，但正如我之前所述，它会影响使用JFrame的多个项目
/*
* To change this license header, choose License Headers in Project Properties.
* To change this template file, choose Tools | Templates
* and open the template in the editor.
*/
package imeannumbers;
import javax.swing.BorderFactory;
import javax.swing.border.TitledBorder;
/**
*
* @author Kanto Ruki
*/
public class Main extends javax.swing.JFrame {
/**
* Creates new form Main
*/
boolean decimalUsed = false;
public Main() {
initComponents();
}
/**
* This method is called from within the constructor to initialize the form.
* WARNING: Do NOT modify this code. The content of this method is always
* regenerated by the Form Editor.
*/
@SuppressWarnings("unchecked")
// <editor-fold defaultstate="collapsed" desc="Generated Code">
private void initComponents() {
tabGrouping = new javax.swing.JTabbedPane();
tabNumPad = new javax.swing.JPanel();
txtBox = new javax.swing.JTextField();
btnOne = new javax.swing.JButton();
btnTwo = new javax.swing.JButton();
btnThree = new javax.swing.JButton();
btnFour = new javax.swing.JButton();
btnFive = new javax.swing.JButton();
btnSix = new javax.swing.JButton();
btnSeven = new javax.swing.JButton();
btnEight = new javax.swing.JButton();
btnNine = new javax.swing.JButton();
btnDecimal = new javax.swing.JButton();
btnZero = new javax.swing.JButton();
btnEnter = new javax.swing.JButton();
tabAchievements = new javax.swing.JScrollPane();
jPanel1 = new javax.swing.JPanel();
lbl00 = new javax.swing.JLabel();
lbl01 = new javax.swing.JLabel();
lbl03 = new javax.swing.JLabel();
lbl05 = new javax.swing.JLabel();
lbl07 = new javax.swing.JLabel();
lbl13 = new javax.swing.JLabel();
jPanel3 = new javax.swing.JPanel();
jPanel4 = new javax.swing.JPanel();
setDefaultCloseOperation(javax.swing.WindowConstants.EXIT_ON_CLOSE);
setTitle("I Mean Numbers");
txtBox.setEditable(false);
txtBox.setHorizontalAlignment(javax.swing.JTextField.RIGHT);
txtBox.setBorder(javax.swing.BorderFactory.createBevelBorder(javax.swing.border.BevelBorder.LOWERED));
btnOne.setText("1");
btnOne.addActionListener(new java.awt.event.ActionListener() {
public void actionPerformed(java.awt.event.ActionEvent evt) {
btnOneActionPerformed(evt);
}
});
btnTwo.setText("2");
btnTwo.addActionListener(new java.awt.event.ActionListener() {
public void actionPerformed(java.awt.event.ActionEvent evt) {
btnTwoActionPerformed(evt);
}
});
btnThree.setText("3");
btnThree.addActionListener(new java.awt.event.ActionListener() {
public void actionPerformed(java.awt.event.ActionEvent evt) {
btnThreeActionPerformed(evt);
}
});
btnFour.setText("4");
btnFour.addActionListener(new java.awt.event.ActionListener() {
public void actionPerformed(java.awt.event.ActionEvent evt) {
btnFourActionPerformed(evt);
}
});
btnFive.setText("5");
btnFive.addActionListener(new java.awt.event.ActionListener() {
public void actionPerformed(java.awt.event.ActionEvent evt) {
btnFiveActionPerformed(evt);
}
});
btnSix.setText("6");
btnSix.addActionListener(new java.awt.event.ActionListener() {
public void actionPerformed(java.awt.event.ActionEvent evt) {
btnSixActionPerformed(evt);
}
});
btnSeven.setText("7");
btnSeven.addActionListener(new java.awt.event.ActionListener() {
public void actionPerformed(java.awt.event.ActionEvent evt) {
btnSevenActionPerformed(evt);
}
});
btnEight.setText("8");
btnEight.addActionListener(new java.awt.event.ActionListener() {
public void actionPerformed(java.awt.event.ActionEvent evt) {
btnEightActionPerformed(evt);
}
});
btnNine.setText("9");
btnNine.addActionListener(new java.awt.event.ActionListener() {
public void actionPerformed(java.awt.event.ActionEvent evt) {
btnNineActionPerformed(evt);
}
});
btnDecimal.setText(".");
btnDecimal.addActionListener(new java.awt.event.ActionListener() {
public void actionPerformed(java.awt.event.ActionEvent evt) {
btnDecimalActionPerformed(evt);
}
});
btnZero.setText("0");
btnZero.addActionListener(new java.awt.event.ActionListener() {
public void actionPerformed(java.awt.event.ActionEvent evt) {
btnZeroActionPerformed(evt);
}
});
btnEnter.setText("Enter");
btnEnter.addActionListener(new java.awt.event.ActionListener() {
public void actionPerformed(java.awt.event.ActionEvent evt) {
btnEnterActionPerformed(evt);
}
});
javax.swing.GroupLayout tabNumPadLayout = new javax.swing.GroupLayout(tabNumPad);
tabNumPad.setLayout(tabNumPadLayout);
tabNumPadLayout.setHorizontalGroup(
tabNumPadLayout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addGroup(tabNumPadLayout.createSequentialGroup()
.addGap(82, 82, 82)
.addGroup(tabNumPadLayout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING, false)
.addGroup(tabNumPadLayout.createSequentialGroup()
.addComponent(btnDecimal, javax.swing.GroupLayout.PREFERRED_SIZE, 73, javax.swing.GroupLayout.PREFERRED_SIZE)
.addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
.addComponent(btnZero, javax.swing.GroupLayout.PREFERRED_SIZE, 73, javax.swing.GroupLayout.PREFERRED_SIZE)
.addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
.addComponent(btnEnter, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE))
.addGroup(tabNumPadLayout.createSequentialGroup()
.addComponent(btnSeven, javax.swing.GroupLayout.PREFERRED_SIZE, 73, javax.swing.GroupLayout.PREFERRED_SIZE)
.addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
.addComponent(btnEight, javax.swing.GroupLayout.PREFERRED_SIZE, 73, javax.swing.GroupLayout.PREFERRED_SIZE)
.addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
.addComponent(btnNine, javax.swing.GroupLayout.PREFERRED_SIZE, 73, javax.swing.GroupLayout.PREFERRED_SIZE))
.addGroup(tabNumPadLayout.createSequentialGroup()
.addComponent(btnFour, javax.swing.GroupLayout.PREFERRED_SIZE, 73, javax.swing.GroupLayout.PREFERRED_SIZE)
.addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
.addComponent(btnFive, javax.swing.GroupLayout.PREFERRED_SIZE, 73, javax.swing.GroupLayout.PREFERRED_SIZE)
.addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
.addComponent(btnSix, javax.swing.GroupLayout.PREFERRED_SIZE, 73, javax.swing.GroupLayout.PREFERRED_SIZE))
.addGroup(tabNumPadLayout.createSequentialGroup()
.addComponent(btnOne, javax.swing.GroupLayout.PREFERRED_SIZE, 73, javax.swing.GroupLayout.PREFERRED_SIZE)
.addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
.addComponent(btnTwo, javax.swing.GroupLayout.PREFERRED_SIZE, 73, javax.swing.GroupLayout.PREFERRED_SIZE)
.addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
.addComponent(btnThree, javax.swing.GroupLayout.PREFERRED_SIZE, 73, javax.swing.GroupLayout.PREFERRED_SIZE))
.addComponent(txtBox))
.addContainerGap(77, Short.MAX_VALUE))
);
tabNumPadLayout.setVerticalGroup(
tabNumPadLayout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addGroup(tabNumPadLayout.createSequentialGroup()
.addGap(20, 20, 20)
.addComponent(txtBox, javax.swing.GroupLayout.PREFERRED_SIZE, 30, javax.swing.GroupLayout.PREFERRED_SIZE)
.addGap(18, 18, 18)
.addGroup(tabNumPadLayout.createParallelGroup(javax.swing.GroupLayout.Alignment.BASELINE)
.addComponent(btnOne, javax.swing.GroupLayout.PREFERRED_SIZE, 30, javax.swing.GroupLayout.PREFERRED_SIZE)
.addComponent(btnTwo, javax.swing.GroupLayout.PREFERRED_SIZE, 30, javax.swing.GroupLayout.PREFERRED_SIZE)
.addComponent(btnThree, javax.swing.GroupLayout.PREFERRED_SIZE, 30, javax.swing.GroupLayout.PREFERRED_SIZE))
.addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.UNRELATED)
.addGroup(tabNumPadLayout.createParallelGroup(javax.swing.GroupLayout.Alignment.BASELINE)
.addComponent(btnFour, javax.swing.GroupLayout.PREFERRED_SIZE, 30, javax.swing.GroupLayout.PREFERRED_SIZE)
.addComponent(btnFive, javax.swing.GroupLayout.PREFERRED_SIZE, 30, javax.swing.GroupLayout.PREFERRED_SIZE)
.addComponent(btnSix, javax.swing.GroupLayout.PREFERRED_SIZE, 30, javax.swing.GroupLayout.PREFERRED_SIZE))
.addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.UNRELATED)
.addGroup(tabNumPadLayout.createParallelGroup(javax.swing.GroupLayout.Alignment.BASELINE)
.addComponent(btnSeven, javax.swing.GroupLayout.PREFERRED_SIZE, 30, javax.swing.GroupLayout.PREFERRED_SIZE)
.addComponent(btnEight, javax.swing.GroupLayout.PREFERRED_SIZE, 30, javax.swing.GroupLayout.PREFERRED_SIZE)
.addComponent(btnNine, javax.swing.GroupLayout.PREFERRED_SIZE, 30, javax.swing.GroupLayout.PREFERRED_SIZE))
.addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.UNRELATED)
.addGroup(tabNumPadLayout.createParallelGroup(javax.swing.GroupLayout.Alignment.BASELINE)
.addComponent(btnDecimal, javax.swing.GroupLayout.PREFERRED_SIZE, 30, javax.swing.GroupLayout.PREFERRED_SIZE)
.addComponent(btnZero, javax.swing.GroupLayout.PREFERRED_SIZE, 30, javax.swing.GroupLayout.PREFERRED_SIZE)
.addComponent(btnEnter, javax.swing.GroupLayout.PREFERRED_SIZE, 30, javax.swing.GroupLayout.PREFERRED_SIZE))
.addContainerGap(javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE))
);
tabGrouping.addTab("NumPad", tabNumPad);
lbl00.setText("??");
lbl00.setBorder(javax.swing.BorderFactory.createTitledBorder(null, "?????", javax.swing.border.TitledBorder.RIGHT, javax.swing.border.TitledBorder.BOTTOM));
lbl01.setText("??");
lbl01.setBorder(javax.swing.BorderFactory.createTitledBorder(null, "?????", javax.swing.border.TitledBorder.RIGHT, javax.swing.border.TitledBorder.BOTTOM));
lbl03.setText("??");
lbl03.setBorder(javax.swing.BorderFactory.createTitledBorder(null, "?????", javax.swing.border.TitledBorder.RIGHT, javax.swing.border.TitledBorder.BOTTOM));
lbl05.setText("??");
lbl05.setBorder(javax.swing.BorderFactory.createTitledBorder(null, "?????", javax.swing.border.TitledBorder.RIGHT, javax.swing.border.TitledBorder.BOTTOM));
lbl07.setText("??");
lbl07.setBorder(javax.swing.BorderFactory.createTitledBorder(null, "?????", javax.swing.border.TitledBorder.RIGHT, javax.swing.border.TitledBorder.BOTTOM));
lbl13.setText("??");
lbl13.setBorder(javax.swing.BorderFactory.createTitledBorder(null, "?????", javax.swing.border.TitledBorder.RIGHT, javax.swing.border.TitledBorder.BOTTOM));
javax.swing.GroupLayout jPanel1Layout = new javax.swing.GroupLayout(jPanel1);
jPanel1.setLayout(jPanel1Layout);
jPanel1Layout.setHorizontalGroup(
jPanel1Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addGroup(jPanel1Layout.createSequentialGroup()
.addGap(34, 34, 34)
.addGroup(jPanel1Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addGroup(jPanel1Layout.createSequentialGroup()
.addComponent(lbl05, javax.swing.GroupLayout.PREFERRED_SIZE, 100, javax.swing.GroupLayout.PREFERRED_SIZE)
.addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
.addComponent(lbl07, javax.swing.GroupLayout.PREFERRED_SIZE, 100, javax.swing.GroupLayout.PREFERRED_SIZE)
.addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
.addComponent(lbl13, javax.swing.GroupLayout.PREFERRED_SIZE, 100, javax.swing.GroupLayout.PREFERRED_SIZE))
.addGroup(jPanel1Layout.createSequentialGroup()
.addComponent(lbl00, javax.swing.GroupLayout.PREFERRED_SIZE, 100, javax.swing.GroupLayout.PREFERRED_SIZE)
.addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
.addComponent(lbl01, javax.swing.GroupLayout.PREFERRED_SIZE, 100, javax.swing.GroupLayout.PREFERRED_SIZE)
.addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
.addComponent(lbl03, javax.swing.GroupLayout.PREFERRED_SIZE, 100, javax.swing.GroupLayout.PREFERRED_SIZE)))
.addContainerGap(42, Short.MAX_VALUE))
);
jPanel1Layout.setVerticalGroup(
jPanel1Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addGroup(jPanel1Layout.createSequentialGroup()
.addContainerGap()
.addGroup(jPanel1Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.BASELINE)
.addComponent(lbl03)
.addComponent(lbl01)
.addComponent(lbl00))
.addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
.addGroup(jPanel1Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.CENTER)
.addComponent(lbl05)
.addComponent(lbl07)
.addComponent(lbl13))
.addContainerGap(141, Short.MAX_VALUE))
);
tabAchievements.setViewportView(jPanel1);
tabGrouping.addTab("Achievements", tabAchievements);
javax.swing.GroupLayout jPanel3Layout = new javax.swing.GroupLayout(jPanel3);
jPanel3.setLayout(jPanel3Layout);
jPanel3Layout.setHorizontalGroup(
jPanel3Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addGap(0, 390, Short.MAX_VALUE)
);
jPanel3Layout.setVerticalGroup(
jPanel3Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addGap(0, 232, Short.MAX_VALUE)
);
tabGrouping.addTab("How To Play", jPanel3);
javax.swing.GroupLayout jPanel4Layout = new javax.swing.GroupLayout(jPanel4);
jPanel4.setLayout(jPanel4Layout);
jPanel4Layout.setHorizontalGroup(
jPanel4Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addGap(0, 390, Short.MAX_VALUE)
);
jPanel4Layout.setVerticalGroup(
jPanel4Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addGap(0, 232, Short.MAX_VALUE)
);
tabGrouping.addTab("About", jPanel4);
javax.swing.GroupLayout layout = new javax.swing.GroupLayout(getContentPane());
getContentPane().setLayout(layout);
layout.setHorizontalGroup(
layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addComponent(tabGrouping)
);
layout.setVerticalGroup(
layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addComponent(tabGrouping)
);
pack();
setLocationRelativeTo(null);
}// </editor-fold>
private void btnOneActionPerformed(java.awt.event.ActionEvent evt) {
txtBox.setText(txtBox.getText() + "1");
}
private void btnTwoActionPerformed(java.awt.event.ActionEvent evt) {
txtBox.setText(txtBox.getText() + "2");
}
private void btnThreeActionPerformed(java.awt.event.ActionEvent evt) {
txtBox.setText(txtBox.getText() + "3");
}
private void btnFourActionPerformed(java.awt.event.ActionEvent evt) {
txtBox.setText(txtBox.getText() + "4");
}
private void btnFiveActionPerformed(java.awt.event.ActionEvent evt) {
txtBox.setText(txtBox.getText() + "5");
}
private void btnSixActionPerformed(java.awt.event.ActionEvent evt) {
txtBox.setText(txtBox.getText() + "6");
}
private void btnSevenActionPerformed(java.awt.event.ActionEvent evt) {
txtBox.setText(txtBox.getText() + "7");
}
private void btnEightActionPerformed(java.awt.event.ActionEvent evt) {
txtBox.setText(txtBox.getText() + "8");
}
private void btnNineActionPerformed(java.awt.event.ActionEvent evt) {
txtBox.setText(txtBox.getText() + "9");
}
private void btnDecimalActionPerformed(java.awt.event.ActionEvent evt) {
if (!decimalUsed) {
txtBox.setText(txtBox.getText() + ".");
decimalUsed = true;
}
}
private void btnZeroActionPerformed(java.awt.event.ActionEvent evt) {
txtBox.setText(txtBox.getText() + "0");
}
private void btnEnterActionPerformed(java.awt.event.ActionEvent evt) {
String check = txtBox.getText();
TitledBorder title = BorderFactory.createTitledBorder("title");
title.setTitleJustification(TitledBorder.RIGHT);
title.setTitlePosition(TitledBorder.BOTTOM);
switch (check) {
case "00":
title.setTitle("The Beginning...");
lbl00.setBorder(title);
lbl00.setText("00");
break;
case "01":
title.setTitle("Your the First");
lbl01.setBorder(title);
lbl01.setText("01");
break;
default:
break;
}
decimalUsed = false;
txtBox.setText("");
}
/**
* @param args the command line arguments
*/
public static void main(String args[]) {
/* Set the Nimbus look and feel */
//<editor-fold defaultstate="collapsed" desc=" Look and feel setting code (optional) ">
/* If Nimbus (introduced in Java SE 6) is not available, stay with the default look and feel.
* For details see http://download.oracle.com/javase/tutorial/uiswing/lookandfeel/plaf.html
*/
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(Main.class.getName()).log(java.util.logging.Level.SEVERE, null, ex);
} catch (InstantiationException ex) {
java.util.logging.Logger.getLogger(Main.class.getName()).log(java.util.logging.Level.SEVERE, null, ex);
} catch (IllegalAccessException ex) {
java.util.logging.Logger.getLogger(Main.class.getName()).log(java.util.logging.Level.SEVERE, null, ex);
} catch (javax.swing.UnsupportedLookAndFeelException ex) {
java.util.logging.Logger.getLogger(Main.class.getName()).log(java.util.logging.Level.SEVERE, null, ex);
}
//</editor-fold>
/* Create and display the form */
java.awt.EventQueue.invokeLater(new Runnable() {
public void run() {
new Main().setVisible(true);
}
});
}
// Variables declaration - do not modify
private javax.swing.JButton btnDecimal;
private javax.swing.JButton btnEight;
private javax.swing.JButton btnEnter;
private javax.swing.JButton btnFive;
private javax.swing.JButton btnFour;
private javax.swing.JButton btnNine;
private javax.swing.JButton btnOne;
private javax.swing.JButton btnSeven;
private javax.swing.JButton btnSix;
private javax.swing.JButton btnThree;
private javax.swing.JButton btnTwo;
private javax.swing.JButton btnZero;
private javax.swing.JPanel jPanel1;
private javax.swing.JPanel jPanel3;
private javax.swing.JPanel jPanel4;
private javax.swing.JLabel lbl00;
private javax.swing.JLabel lbl01;
private javax.swing.JLabel lbl03;
private javax.swing.JLabel lbl05;
private javax.swing.JLabel lbl07;
private javax.swing.JLabel lbl13;
private javax.swing.JScrollPane tabAchievements;
private javax.swing.JTabbedPane tabGrouping;
private javax.swing.JPanel tabNumPad;
private javax.swing.JTextField txtBox;
// End of variables declaration
}
UPDATE2：
感谢@Willshackleford，我发现问题发生在EventQueue中的主执行中
public static void invokeLater(Runnable runnable) {
Toolkit.getEventQueue().postEvent(
new InvocationEvent(Toolkit.getDefaultToolkit(), runnable));
}
使用错误消息Variable information not available, source compiled without -g option
答案 0 :(得分：1)
您可能已切换设置。如果选择项目，并在弹出菜单中选择“属性”，然后选择类别运行。有几个属性会搞砸。主类可以更改为JFrame类以外的类。将平台设置为您尚未安装的JDK版本或安装中断等等
调试的最佳方法可能是选择项目并选择Debug - ＆gt;单步或从菜单中按F7。这将启动您的程序，但会立即暂停，以便您可以通过按F7（Step Into）或F8（Step Over）为每一行逐步执行一行。如果它开始步入错误的类，您将无需修复主类属性。如果它开始正常但是提前退出，你会想要在退出之前仔细查看最后一行。