退休计算器（固定）

Question

我一个坚持与我的任务的一部分。 信息： 我的任务是制作一个GUI退休年龄计算器。 我已经用所需的文本字段做了gui。 我的问题是采取用户输入，并单击按钮，让按钮做退休课程的计算。 我的按钮什么都不做。 以及我的清除按钮。 （备注：这是我第一次在计算器上。不能确定它是如何工作的，但我想） （按钮现在需要用户输入和输出。）

public class ViewGui extends JFrame { 

    /** 
    * 
    */ 
    private static final long serialVersionUID = -628756272392439536L; 
    private JPanel contentPane; 
    private JTextField age; 
    private JTextField rAge; 
    private JTextField preTB; 
    private JTextField postTB; 
    private JTextField capGain; 
    private JTextField iTax; 
    private JTextField preTc; 
    private JTextField postTC; 
    private JTextField savings; 
    private JTextField total; 
    private Retirement retire; 
    private JTextField rateR; 

    /** 
    * Create the frame. 
    */ 
    public ViewGui() { 
     setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE); 
     setBounds(100, 100, 450, 300); 
     contentPane = new JPanel(); 
     contentPane.setBorder(new EmptyBorder(5, 5, 5, 5)); 
     setContentPane(contentPane); 
     contentPane.setLayout(null); 

     age = new JTextField(); 
     age.setBounds(21, 29, 86, 20); 
     contentPane.add(age); 
     age.setColumns(10); 

     rAge = new JTextField(); 
     rAge.setBounds(21, 72, 86, 20); 
     contentPane.add(rAge); 
     rAge.setColumns(10); 

     preTB = new JTextField(); 
     preTB.setBounds(21, 115, 86, 20); 
     contentPane.add(preTB); 
     preTB.setColumns(10); 

     postTB = new JTextField(); 
     postTB.setBounds(21, 157, 86, 20); 
     contentPane.add(postTB); 
     postTB.setColumns(10); 

     capGain = new JTextField(); 
     capGain.setBounds(168, 29, 86, 20); 
     contentPane.add(capGain); 
     capGain.setColumns(10); 

     iTax = new JTextField(); 
     iTax.setBounds(168, 72, 86, 20); 
     contentPane.add(iTax); 
     iTax.setColumns(10); 

     preTc = new JTextField(); 
     preTc.setBounds(168, 115, 86, 20); 
     contentPane.add(preTc); 
     preTc.setColumns(10); 

     postTC = new JTextField(); 
     postTC.setBounds(168, 157, 86, 20); 
     contentPane.add(postTC); 
     postTC.setColumns(10); 

     savings = new JTextField(); 
     savings.setBounds(21, 201, 86, 20); 
     contentPane.add(savings); 
     savings.setColumns(10); 

     JLabel lblAge = new JLabel("Age"); 
     lblAge.setBounds(40, 11, 46, 14); 
     contentPane.add(lblAge); 

     JLabel lblRetirementAge = new JLabel("Retirement Age"); 
     lblRetirementAge.setBounds(21, 60, 98, 14); 
     contentPane.add(lblRetirementAge); 

     JLabel lblPostTaxBalance = new JLabel("Post Tax Balance"); 
     lblPostTaxBalance.setBounds(21, 145, 86, 14); 
     contentPane.add(lblPostTaxBalance); 

     JLabel lblPreTaxBalance = new JLabel("Pre Tax Balance"); 
     lblPreTaxBalance.setBounds(21, 103, 86, 14); 
     contentPane.add(lblPreTaxBalance); 

     JLabel lblCapitalGain = new JLabel("Capital Gain"); 
     lblCapitalGain.setBounds(169, 11, 71, 14); 
     contentPane.add(lblCapitalGain); 

     JLabel lblIncomeTax = new JLabel("Income Tax"); 
     lblIncomeTax.setBounds(168, 60, 86, 14); 
     contentPane.add(lblIncomeTax); 

     JLabel lblPreTaxCollection = new JLabel("Pre Tax Collection"); 
     lblPreTaxCollection.setBounds(168, 103, 104, 14); 
     contentPane.add(lblPreTaxCollection); 

     JLabel lblPostTaxCollection = new JLabel("Post Tax Collection"); 
     lblPostTaxCollection.setBounds(166, 145, 116, 14); 
     contentPane.add(lblPostTaxCollection); 

     JLabel lblSavings = new JLabel("Savings"); 
     lblSavings.setBounds(21, 188, 46, 14); 
     contentPane.add(lblSavings); 

     JButton Calculate = new JButton("Go!"); 
     Calculate.setBounds(165, 188, 89, 23); 
     contentPane.add(Calculate); 

     JButton Clear = new JButton("Clear"); 
     Clear.setBounds(165, 222, 89, 23); 
     contentPane.add(Clear); 

     total = new JTextField(); 
     total.setBounds(282, 29, 142, 211); 
     contentPane.add(total); 
     total.setColumns(10); 

     JLabel lblRetirement = new JLabel("Retirement"); 
     lblRetirement.setBounds(323, 11, 71, 14); 
     contentPane.add(lblRetirement); 

     rateR = new JTextField(); 
     rateR.setBounds(21, 242, 86, 20); 
     contentPane.add(rateR); 
     rateR.setColumns(10); 

     JLabel lblRateOfReturn = new JLabel("Rate of Return"); 
     lblRateOfReturn.setBounds(21, 226, 86, 14); 
     contentPane.add(lblRateOfReturn); 
    } 


    public class Calculate implements ActionListener 
    { 
     public void actionPerformed(ActionEvent arg1) 
     { 

      retire = new Retirement(age.getText(), rAge.getText(), preTB.getText(), postTB.getText(), savings.getText(), 
        capGain.getText(), iTax.getText(), preTc.getText(), postTC.getText(), rateR.getText()); 
      total.setText("Year" + retire.getAge() + retire.getITax()); 
     } 
    } 


public class ClearButton implements ActionListener 
    { 

     public void actionPerformed(ActionEvent arg0) { 
      // TODO Auto-generated method stub 
     try 
     { 
      age.setText(" "); 
      rAge.setText(" "); 
      preTB.setText(" "); 
      postTB.setText(" "); 
      capGain.setText(" "); 
      iTax.setText(" "); 
      preTc.setText(" "); 
      postTC.setText(" "); 
      savings.setText(" "); 
      total.setText(" "); 
     } 
      catch(Exception e) 
     { 
       age.setText("Error: " + e.getMessage()); 
       rAge.setText("Error: " + e.getMessage()); 
       preTB.setText(" Error: " + e.getMessage()); 
       postTB.setText(" Error: " + e.getMessage()); 
       capGain.setText(" Error: " + e.getMessage()); 
       iTax.setText(" Error: " + e.getMessage()); 
       preTc.setText(" Error: " + e.getMessage()); 
       postTC.setText(" Error: " + e.getMessage()); 
       savings.setText(" Error: " + e.getMessage()); 
       total.setText(" Error: " + e.getMessage()); 
     } 
     } 
    } 
    }    

Answer 1

您创建的ActionListner的，但你忘了将它们添加到按钮！通过在看看[如何使用按钮，复选框和单选按钮（http://docs.oracle.com/javase

Calculate.addActionListener(new Calculate());