Java编写银行借存利息计算器

import java.awt.BorderLayout;
import java.awt.EventQueue;

import javax.swing.JFrame;
import javax.swing.JPanel;
import javax.swing.border.EmptyBorder;
import javax.xml.soap.Text;

import java.awt.GridBagLayout;
import java.awt.GridLayout;
import java.awt.TextField;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.io.BufferedWriter;

import javax.swing.JLabel;
import javax.swing.JButton;
import javax.swing.JTextField;
import javax.swing.JComboBox;
import javax.swing.DefaultComboBoxModel;

public class lishu extends JFrame{

    private JPanel contentPane;
    private JTextField textField;
    private JTextField textField_1;
    private JTextField textField_3;
    private JTextField textField_4;
    private JTextField textField_5;
    private JTextField textField_6;
    private JTextField textField_2;
    private JTextField textField_7;
    private JTextField textField_8;
    private JTextField textField_9;
    private JTextField textField_10;
    private JTextField textField_11;
    private JTextField textField_12;
    private JPanel panel;
    private JLabel lblNewLabel;
    private JPanel panel_2;
    private JButton btnNewButton;
    private JPanel panel_3;
    private JPanel panel_4;
    private JPanel panel_8;
    private JLabel lblNewLabel_1;
    private JPanel panel_9;
    private JLabel lblNewLabel_2;
    private JPanel panel_5;
    private JPanel panel_10;
    private JLabel lblNewLabel_3;
    private JButton bu;
    private JComboBox comboBox;
    public static void main(String[] args) {
    
                    lishu frame = new lishu();
        
    
    }
    public lishu() {
        setTitle("银行借存利息计算器");
        setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
        setBounds(100, 100, 500, 478);
        contentPane = new JPanel();
        contentPane.setBorder(new EmptyBorder(5, 5, 5, 5));
        setContentPane(contentPane);
        contentPane.setLayout(new GridLayout(0, 1, 2, 0));
        
        panel = new JPanel();
        contentPane.add(panel);
        panel.setLayout(new BorderLayout(0, 0));
        
        lblNewLabel = new JLabel("存款利息计算");
        panel.add(lblNewLabel, BorderLayout.NORTH);
        
        panel_2 = new JPanel();
        panel.add(panel_2, BorderLayout.SOUTH);
        
        btnNewButton = new JButton("计算");
    
            
        panel_2.add(btnNewButton);
        
        panel_3 = new JPanel();
        panel.add(panel_3, BorderLayout.CENTER);
        panel_3.setLayout(new GridLayout(0, 1, 4, 0));
        
        panel_4 = new JPanel();
        panel_3.add(panel_4);
        panel_4.setLayout(new GridLayout(1, 0, 0, 0));
        
        panel_8 = new JPanel();
        panel_4.add(panel_8);
        
        lblNewLabel_1 = new JLabel("存款金额");
        panel_8.add(lblNewLabel_1);
        
        textField = new JTextField();
        panel_8.add(textField);
        textField.setColumns(10);
        
        JLabel lblNewLabel_16 = new JLabel("元");
        panel_8.add(lblNewLabel_16);
        
        JLabel label_3 = new JLabel("");
        panel_8.add(label_3);
        
        panel_9 = new JPanel();
        panel_4.add(panel_9);
        
        lblNewLabel_2 = new JLabel("到期利息");
        panel_9.add(lblNewLabel_2);
        
        textField_1 = new JTextField();
        panel_9.add(textField_1);
        textField_1.setColumns(10);
        
        panel_5 = new JPanel();
        panel_3.add(panel_5);
        panel_5.setLayout(new GridLayout(1, 0, 0, 0));
        
        panel_10 = new JPanel();
        panel_5.add(panel_10);
        
        lblNewLabel_3 = new JLabel("存款时间");
        panel_10.add(lblNewLabel_3);
        
        comboBox = new JComboBox();
        comboBox.setModel(new DefaultComboBoxModel(new String[] {"1", "2", "3"}));
        panel_10.add(comboBox);
        
        JLabel label = new JLabel("年");
        panel_10.add(label);
        
        JPanel panel_11 = new JPanel();
        panel_5.add(panel_11);
        
        JLabel lblNewLabel_4 = new JLabel("到期本息");
        panel_11.add(lblNewLabel_4);
        
        textField_3 = new JTextField();
        panel_11.add(textField_3);
        textField_3.setColumns(10);
        
        JPanel panel_6 = new JPanel();
        panel_3.add(panel_6);
        panel_6.setLayout(new GridLayout(1, 0, 0, 0));
        
        JPanel panel_12 = new JPanel();
        panel_6.add(panel_12);
        
        JLabel lblNewLabel_5 = new JLabel("存款利率");
        panel_12.add(lblNewLabel_5);
        
        textField_4 = new JTextField();
        panel_12.add(textField_4);
        textField_4.setColumns(10);
        
        JLabel label_1 = new JLabel("%");
        panel_12.add(label_1);
        
        JPanel panel_13 = new JPanel();
        panel_6.add(panel_13);
        
        JLabel lblNewLabel_6 = new JLabel("到期时间");
        panel_13.add(lblNewLabel_6);
        
        textField_5 = new JTextField();
        panel_13.add(textField_5);
        textField_5.setColumns(10);
        
        JPanel panel_7 = new JPanel();
        panel_3.add(panel_7);
        panel_7.setLayout(new GridLayout(1, 0, 0, 0));
        
        JPanel panel_14 = new JPanel();
        panel_7.add(panel_14);
        
        JLabel lblNewLabel_7 = new JLabel("起始时间");
        panel_14.add(lblNewLabel_7);
        
        textField_6 = new JTextField();
        panel_14.add(textField_6);
        textField_6.setColumns(10);
        
        JPanel panel_15 = new JPanel();
        panel_7.add(panel_15);
        
        JPanel panel_1 = new JPanel();
        contentPane.add(panel_1);
        panel_1.setLayout(new BorderLayout(0, 0));
        
        JLabel lblNewLabel_8 = new JLabel("存款利息计算");
        panel_1.add(lblNewLabel_8, BorderLayout.NORTH);
        
        JPanel panel_16 = new JPanel();
        panel_1.add(panel_16, BorderLayout.SOUTH);
        
         bu = new JButton("计算");
        
        panel_16.add(bu);
//        bu.addActionListener(this);
        
        JPanel panel_17 = new JPanel();
        panel_1.add(panel_17, BorderLayout.CENTER);
        panel_17.setLayout(new GridLayout(0, 1, 4, 0));
        
        JPanel panel_18 = new JPanel();
        panel_17.add(panel_18);
        panel_18.setLayout(new GridLayout(1, 0, 0, 0));
        
        JPanel panel_22 = new JPanel();
        panel_18.add(panel_22);
        
        JLabel lblNewLabel_9 = new JLabel("贷款金额");
        panel_22.add(lblNewLabel_9);
        
        textField_2 = new JTextField();
        panel_22.add(textField_2);
        textField_2.setColumns(10);
        
        JLabel lblNewLabel_17 = new JLabel("元");
        panel_22.add(lblNewLabel_17);
        
        JPanel panel_23 = new JPanel();
        panel_18.add(panel_23);
        
        JLabel lblNewLabel_10 = new JLabel("应还利息");
        panel_23.add(lblNewLabel_10);
        
        textField_7 = new JTextField();
        panel_23.add(textField_7);
        textField_7.setColumns(10);
        
        JPanel panel_19 = new JPanel();
        panel_17.add(panel_19);
        panel_19.setLayout(new GridLayout(1, 0, 0, 0));
        
        JPanel panel_26 = new JPanel();
        panel_19.add(panel_26);
        
        JLabel lblNewLabel_11 = new JLabel("贷款时间");
        panel_26.add(lblNewLabel_11);
        
        textField_8 = new JTextField();
        panel_26.add(textField_8);
        textField_8.setColumns(10);
        
        JLabel label_2 = new JLabel("%");
        panel_26.add(label_2);
        
        JPanel panel_27 = new JPanel();
        panel_19.add(panel_27);
        
        JLabel lblNewLabel_12 = new JLabel("应还本息");
        panel_27.add(lblNewLabel_12);
        
        textField_9 = new JTextField();
        panel_27.add(textField_9);
        textField_9.setColumns(10);
        
        JPanel panel_20 = new JPanel();
        panel_17.add(panel_20);
        panel_20.setLayout(new GridLayout(1, 0, 0, 0));
        
        JPanel panel_24 = new JPanel();
        panel_20.add(panel_24);
        
        JLabel lblNewLabel_13 = new JLabel("贷款利率");
        panel_24.add(lblNewLabel_13);
        
        textField_10 = new JTextField();
        panel_24.add(textField_10);
        textField_10.setColumns(10);
        
        JPanel panel_25 = new JPanel();
        panel_20.add(panel_25);
        
        JLabel lblNewLabel_14 = new JLabel("还款时间");
        panel_25.add(lblNewLabel_14);
        
        textField_11 = new JTextField();
        panel_25.add(textField_11);
        textField_11.setColumns(10);
        
        JPanel panel_21 = new JPanel();
        panel_17.add(panel_21);
        panel_21.setLayout(new GridLayout(1, 0, 0, 0));
        
        JPanel panel_28 = new JPanel();
        panel_21.add(panel_28);
        
        JLabel lblNewLabel_15 = new JLabel("贷款日期");
        panel_28.add(lblNewLabel_15);
        
        textField_12 = new JTextField();
        panel_28.add(textField_12);
        textField_12.setColumns(10);
        
        JPanel panel_29 = new JPanel();
        panel_21.add(panel_29);
        setVisible(true);
         bu.addActionListener(new ActionListener() {
                 public void actionPerformed(ActionEvent e) {
                     Double i1 = new Double(textField_2.getText());
                    
                    Double i4 = new Double(textField_8.getText());
                    
                        Double i2 = new Double(textField_10.getText());
                    
                        Double i3 = new Double(textField_12.getText());
                    
                    textField_7.setText(i1*i4*i2*0.01+"");

                        textField_9.setText(i1*i4*i2*0.01+i1+"");
                        textField_11.setText(i4+i3+"");
                 
                 }
             });
    btnNewButton.addActionListener(new ActionListener() {
        
            
            @Override
            public void actionPerformed(ActionEvent e) {
                
                 Double i1 = new Double(textField.getText());
                
                Double i4 = new Double(comboBox.getSelectedItem().toString());
                
                    Double i2 = new Double(textField_4.getText());
                
                    Double i3 = new Double(textField_6.getText());
                
                    textField_1.setText(i1*i4*i2*0.01+"");

                    textField_3.setText(i1*i4*i2*0.01+i1+"");
                    textField_5.setText(i4+i3+"");
            
            
            
                }
                
    
        });
    }


    
}