我正在eclipse中编写一个程序，它根据用户的输入生成报告。我在JScrollPane中有一个JTextPane，允许用户输入文本的描述，然后通过按下按钮将其添加到系统，但是我收到错误“textPaneDescription无法解析”。
代码（不包括进口）
public class GUI{
private JFrame frame;
private JTextField textFieldHoursWorked;
private JTextField textFieldParking;
private JTextField textFieldCongestion;
private JTextField textFieldDays;
private JTextField textFieldSmallTools;
private JTextField textFieldHireCharges;
private JTextField textFieldMaterials;
private JTextField textFieldSubContracted;
private JTextField textFieldSupplyOnlyWorks;
private JTextField textFieldConsultants;
private int counter = 0;
/**
* Launch the application.
*/
public static void main(String[] args) {
EventQueue.invokeLater(new Runnable() {
public void run() {
try {
GUI window = new GUI();
window.frame.setVisible(true);
} catch (Exception e) {
e.printStackTrace();
}
}
});
}
/**
* Create the application.
*/
public GUI() {
initialize();
}
/**
* Initialize the contents of the frame.
*/
private void initialize() {
final ArrayList<Operative> tierOneArray = new ArrayList();
final ArrayList<Operative> tierTwoArray = new ArrayList();
final ArrayList<Operative> semiSkilledArray = new ArrayList();
final ArrayList<Operative> supervisionArray = new ArrayList();
frame = new JFrame();
frame.setBounds(100, 100, 780, 555);
frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
frame.getContentPane().setLayout(null);
JScrollPane scrollPaneHistory = new JScrollPane();
scrollPaneHistory.setBounds(353, 0, 411, 516);
frame.getContentPane().add(scrollPaneHistory);
final JTextArea textAreaHistory = new JTextArea();
textAreaHistory.setEditable(false);
scrollPaneHistory.setViewportView(textAreaHistory);
final JComboBox comboBoxOperativeType = new JComboBox();
comboBoxOperativeType.setModel(new DefaultComboBoxModel(new String[] {"Skilled Operative (Tier 1)", "Skilled Operative (Tier 2)", "Semi-skilled Operative", "Supervision"}));
comboBoxOperativeType.setBounds(139, 52, 182, 20);
frame.getContentPane().add(comboBoxOperativeType);
JLabel lblOperativeType = new JLabel("Operative Type");
lblOperativeType.setFont(new Font("Tahoma", Font.PLAIN, 14));
lblOperativeType.setBounds(35, 52, 99, 20);
frame.getContentPane().add(lblOperativeType);
JLabel lblHoursWorked = new JLabel("Hours Worked");
lblHoursWorked.setFont(new Font("Tahoma", Font.PLAIN, 14));
lblHoursWorked.setBounds(40, 114, 89, 20);
frame.getContentPane().add(lblHoursWorked);
textFieldHoursWorked = new JTextField();
textFieldHoursWorked.setBounds(139, 114, 182, 20);
frame.getContentPane().add(textFieldHoursWorked);
textFieldHoursWorked.setColumns(10);
final JComboBox comboBoxWorkingHours = new JComboBox();
comboBoxWorkingHours.setModel(new DefaultComboBoxModel(new String[] {"In", "Out"}));
comboBoxWorkingHours.setBounds(139, 145, 182, 20);
frame.getContentPane().add(comboBoxWorkingHours);
JLabel lblNewLabelWorkingHours = new JLabel("In/Out of Hours");
lblNewLabelWorkingHours.setFont(new Font("Tahoma", Font.PLAIN, 14));
lblNewLabelWorkingHours.setBounds(35, 145, 99, 20);
frame.getContentPane().add(lblNewLabelWorkingHours);
final JRadioButton rdbtnEmergency = new JRadioButton("Emergency?");
rdbtnEmergency.setFont(new Font("Tahoma", Font.PLAIN, 14));
rdbtnEmergency.setForeground(new Color(0, 0, 0));
rdbtnEmergency.setBounds(135, 233, 20, 23);
frame.getContentPane().add(rdbtnEmergency);
JLabel lblParking = new JLabel("Parking");
lblParking.setFont(new Font("Tahoma", Font.PLAIN, 14));
lblParking.setBounds(84, 176, 45, 18);
frame.getContentPane().add(lblParking);
textFieldParking = new JTextField();
textFieldParking.setColumns(10);
textFieldParking.setBounds(139, 176, 182, 20);
frame.getContentPane().add(textFieldParking);
JLabel lblCongestion = new JLabel("Congestion");
lblCongestion.setFont(new Font("Tahoma", Font.PLAIN, 14));
lblCongestion.setBounds(60, 205, 69, 18);
frame.getContentPane().add(lblCongestion);
textFieldCongestion = new JTextField();
textFieldCongestion.setColumns(10);
textFieldCongestion.setBounds(139, 206, 182, 20);
frame.getContentPane().add(textFieldCongestion);
JLabel lblEmergency = new JLabel("Emergency?");
lblEmergency.setFont(new Font("Tahoma", Font.PLAIN, 14));
lblEmergency.setBounds(51, 235, 83, 18);
frame.getContentPane().add(lblEmergency);
JButton btnAddOne = new JButton("Add");
btnAddOne.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent arg0) {
counter ++;
Labourer t1Operative = new Labourer("Tier 1", 29.75, 39.67, 39.67, 52.89, 45.00, 85.00);
Labourer t2Operative = new Labourer("Tier 2", 32.98, 43.97, 43.97, 58.63, 45.00, 85.00);
Labourer semiSkilledOperative = new Labourer("Semi Skilled", 25.50, 34.00, 34.00, 45.33, 45.00, 85.00);
Labourer supervisionOperative = new Labourer("Tier 2", 34.00, 45.33, 45.33, 60.44, 65.00, 100.00);
if(comboBoxOperativeType.getSelectedIndex() == 0)
{
tierOneArray.add(new Operative(textPaneDescription.getText(), (String)comboBoxOperativeType.getSelectedItem(), textFieldDays.getText(), textFieldHoursWorked.getText(), (String)comboBoxWorkingHours.getSelectedItem(),textFieldParking.getText(), textFieldCongestion.getText(), rdbtnEmergency.isSelected(), t1Operative));
}
else if(comboBoxOperativeType.getSelectedIndex() == 1)
{
tierTwoArray.add(new Operative(textPaneDescription.getText(), (String)comboBoxOperativeType.getSelectedItem(), textFieldDays.getText(), textFieldHoursWorked.getText(), (String)comboBoxWorkingHours.getSelectedItem(),textFieldParking.getText(), textFieldCongestion.getText(), rdbtnEmergency.isSelected(), t2Operative));
}
else if(comboBoxOperativeType.getSelectedIndex() == 2)
{
semiSkilledArray.add(new Operative(textPaneDescription.getText(), (String)comboBoxOperativeType.getSelectedItem(), textFieldDays.getText(), textFieldHoursWorked.getText(), (String)comboBoxWorkingHours.getSelectedItem(),textFieldParking.getText(), textFieldCongestion.getText(), rdbtnEmergency.isSelected(), semiSkilledOperative));
}
else if(comboBoxOperativeType.getSelectedIndex() == 3)
{
supervisionArray.add(new Operative(textPaneDescription.getText(), (String)comboBoxOperativeType.getSelectedItem(), textFieldDays.getText(), textFieldHoursWorked.getText(), (String)comboBoxWorkingHours.getSelectedItem(),textFieldParking.getText(), textFieldCongestion.getText(), rdbtnEmergency.isSelected(), supervisionOperative));
}
textAreaHistory.append(counter + ": " + (String)comboBoxOperativeType.getSelectedItem() + " / " + textFieldDays.getText()+ "day(s) / " + textFieldHoursWorked.getText() + "hours(s) / " + (String)comboBoxWorkingHours.getSelectedItem() + " / £" + textFieldParking.getText() + " / £" + textFieldCongestion.getText() + " / " + rdbtnEmergency.isSelected() + "\n");
}
});
btnAddOne.setBounds(231, 235, 89, 23);
frame.getContentPane().add(btnAddOne);
JButton btnDone = new JButton("Done");
btnDone.setBounds(231, 480, 89, 23);
btnDone.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent arg0) {
Logic logic = new Logic(tierOneArray, tierTwoArray, semiSkilledArray, supervisionArray);
}
});
frame.getContentPane().add(btnDone);
JLabel labelDays = new JLabel("Days Worked");
labelDays.setFont(new Font("Tahoma", Font.PLAIN, 14));
labelDays.setBounds(45, 83, 89, 20);
frame.getContentPane().add(labelDays);
textFieldDays = new JTextField();
textFieldDays.setColumns(10);
textFieldDays.setBounds(139, 83, 182, 20);
frame.getContentPane().add(textFieldDays);
JSeparator separator = new JSeparator();
separator.setBounds(0, 270, 352, 2);
frame.getContentPane().add(separator);
JLabel lblSmallTools = new JLabel("Small Tools and Incidental Costs");
lblSmallTools.setBounds(8, 308, 219, 14);
frame.getContentPane().add(lblSmallTools);
textFieldSmallTools = new JTextField();
lblSmallTools.setLabelFor(textFieldSmallTools);
textFieldSmallTools.setBounds(199, 305, 141, 20);
frame.getContentPane().add(textFieldSmallTools);
textFieldSmallTools.setColumns(10);
JLabel lblHireCharges = new JLabel("Hire Charges");
lblHireCharges.setBounds(118, 283, 128, 14);
frame.getContentPane().add(lblHireCharges);
textFieldHireCharges = new JTextField();
textFieldHireCharges.setColumns(10);
textFieldHireCharges.setBounds(199, 280, 141, 20);
frame.getContentPane().add(textFieldHireCharges);
JLabel lblMaterials = new JLabel("Material Purchase Costs");
lblMaterials.setBounds(51, 333, 181, 14);
frame.getContentPane().add(lblMaterials);
textFieldMaterials = new JTextField();
textFieldMaterials.setColumns(10);
textFieldMaterials.setBounds(199, 333, 141, 20);
frame.getContentPane().add(textFieldMaterials);
JLabel lblSubcontracted = new JLabel("Specialist Subcontraced Works");
lblSubcontracted.setBounds(10, 361, 212, 14);
frame.getContentPane().add(lblSubcontracted);
textFieldSubContracted = new JTextField();
textFieldSubContracted.setColumns(10);
textFieldSubContracted.setBounds(199, 358, 141, 20);
frame.getContentPane().add(textFieldSubContracted);
JLabel lblSupplyOnlyWorks = new JLabel("Supply Only Works");
lblSupplyOnlyWorks.setBounds(80, 389, 116, 17);
frame.getContentPane().add(lblSupplyOnlyWorks);
textFieldSupplyOnlyWorks = new JTextField();
textFieldSupplyOnlyWorks.setColumns(10);
textFieldSupplyOnlyWorks.setBounds(199, 387, 141, 20);
frame.getContentPane().add(textFieldSupplyOnlyWorks);
JLabel lblConsultants = new JLabel("Consultants and Designers");
lblConsultants.setBounds(35, 417, 206, 14);
frame.getContentPane().add(lblConsultants);
textFieldConsultants = new JTextField();
textFieldConsultants.setColumns(10);
textFieldConsultants.setBounds(199, 414, 141, 20);
frame.getContentPane().add(textFieldConsultants);
JButton btnAddTwo = new JButton("Add");
btnAddTwo.setBounds(232, 446, 89, 23);
frame.getContentPane().add(btnAddTwo);
JLabel lblDescription = new JLabel("Description");
lblDescription.setFont(new Font("Tahoma", Font.PLAIN, 14));
lblDescription.setBounds(60, 23, 69, 20);
frame.getContentPane().add(lblDescription);
JScrollPane scrollPaneDescription = new JScrollPane();
scrollPaneDescription.setHorizontalScrollBarPolicy(ScrollPaneConstants.HORIZONTAL_SCROLLBAR_NEVER);
scrollPaneDescription.setBounds(139, 23, 182, 20);
frame.getContentPane().add(scrollPaneDescription);
JTextPane textPaneDescription = new JTextPane();
scrollPaneDescription.setViewportView(textPaneDescription);
}
}
答案 0 :(得分：0)
在您实际声明之前，您似乎正在访问变量textPaneDescription。
添加动作侦听器时可以访问textPaneDescription。
tierOneArray.add（new Operative（ textPaneDescription.getText（） ...）;
虽然不仅要在代码中稍后声明变量，因此无法解析。