复利计算器2.01

package JSQ;

import java.awt.EventQueue;

public class FuLiJiSuanQi extends JFrame {

    /**
     * 
     */
    private static final long serialVersionUID = 1L;
    private JPanel contentPane;
    private JTextField textField_1;
    private JTextField textField_2;
    private JTextField textField;
    private JTextField textField_3;
    private JLabel label_1;
    double capital,year,rate,sum;
    int tag;
    /**
     * Launch the application.
     */
    public static void main(String[] args) {
        EventQueue.invokeLater(new Runnable() {
            public void run() {
                try {
                    FuLiJiSuanQi frame = new FuLiJiSuanQi();
                    frame.setVisible(true);
                } catch (Exception e) {
                    e.printStackTrace();
                }
            }
        });
    }

    /**
     * Create the frame.
     */
    public FuLiJiSuanQi() {
        setTitle("u590Du5229u8BA1u7B97u56682.0");
        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);
        
        final JLabel label = new JLabel("u5B58u6B3E(u4E07):");
        label.setFont(new Font("Microsoft JhengHei", Font.PLAIN, 16));
        label.setBounds(62, 85, 90, 15);
        contentPane.add(label);
        
        textField = new JTextField();
        textField.setBounds(166, 84, 130, 21);
        contentPane.add(textField);
        textField.setColumns(10);
        
        label_1 = new JLabel("u5229u7387( %):");
        label_1.setFont(new Font("Microsoft JhengHei", Font.PLAIN, 16));
        label_1.setBounds(62, 142, 81, 15);
        contentPane.add(label_1);
        
        textField_1 = new JTextField();
        textField_1.setBounds(166, 115, 130, 21);
        contentPane.add(textField_1);
        textField_1.setColumns(10);
        
        JLabel label_2 = new JLabel("u5E74u9650(u5E74):");
        label_2.setFont(new Font("Microsoft JhengHei", Font.PLAIN, 16));
        label_2.setBounds(62, 117, 104, 15);
        contentPane.add(label_2);
        
        textField_2 = new JTextField();
        textField_2.setBounds(166, 140, 130, 21);
        contentPane.add(textField_2);
        textField_2.setColumns(10);
        
        final JButton btnNewButton = new JButton("u672Cu606F(u4E07)");
        btnNewButton.addMouseListener(new MouseAdapter() {
            @Override
            public void mouseClicked(MouseEvent e) {
                 capital=Double.parseDouble(textField.getText());
                 year=Double.parseDouble(textField_1.getText());
                 rate=Double.parseDouble(textField_2.getText());
                 if(tag==1)
                 {
                     sum=capital*Math.pow((1+rate/100),year);
                 }
                 else if(tag==0){
                     sum=capital*(1+rate/100)*year;
                }
                 else {
                    sum=capital/Math.pow((1+rate/100),year);
                }
                textField_3.setText(Double.toString(sum));
            }
        });
        btnNewButton.addActionListener(new ActionListener() {
            public void actionPerformed(ActionEvent e) {
            }
        });
        btnNewButton.setBounds(53, 181, 90, 23);
        contentPane.add(btnNewButton);
        
        textField_3 = new JTextField();
        textField_3.setForeground(new Color(127, 255, 212));
        textField_3.setEnabled(false);
        textField_3.setBounds(166, 182, 130, 21);
        contentPane.add(textField_3);
        textField_3.setColumns(10);
        
        final JComboBox comboBox = new JComboBox();
        comboBox.addItemListener(new ItemListener() {
            public void itemStateChanged(ItemEvent e) {
                if(comboBox.getSelectedItem().toString().equals("u5355u5229u8BA1u7B97"))
                {
                    tag=0;
                    label.setText("u5B58u6B3E(u4E07):");
                    btnNewButton.setText("u672Cu606F(u4E07)");
                }
                else if(comboBox.getSelectedItem().toString().equals("u590Du5229u8BA1u7B97")) {
                    tag=1;
                    label.setText("u5B58u6B3E(u4E07):");
                    btnNewButton.setText("u672Cu606F(u4E07)");
                }
                else {
                    tag=3;
                    label.setText("u603Bu989D(u4E07):");
                    btnNewButton.setText("u5E94u5B58u91D1u989D");
                }
            }
        });
        comboBox.setModel(new DefaultComboBoxModel(new String[] {"u590Du5229u8BA1u7B97", "u5355u5229u8BA1u7B97", "u5B58u94B1u4F30u7B97"}));
        comboBox.setBounds(53, 10, 90, 21);
        contentPane.add(comboBox);
        
        JLabel label_3 = new JLabel("u529Fu80FD");
        label_3.setFont(new Font("Microsoft JhengHei", Font.PLAIN, 16));
        label_3.setBounds(10, 13, 54, 15);
        contentPane.add(label_3);
    }
}