exercise16_4.java

一款用java编写的小型数据库管理系统

import javax.swing.*;
import java.awt.event.*;
import java.awt.*;
import javax.swing.border.Border;
public class Exercise16_4 extends JFrame{
    private JTextField jtName=new JTextField(10);
    private JTextField jtStreet=new JTextField(10);
    private JTextField jtCity=new JTextField(10);
    private JTextField jtState=new JTextField(10);
    private JTextField jtZip=new JTextField(10);
    private JLabel jlName=new JLabel("Name");
    private JLabel jlStreet=new JLabel("Street");
    private JLabel jlCity=new JLabel("City");
    private JLabel jlState=new JLabel("State");
    private JLabel jlZip=new JLabel("Zip");
    private JButton jbAdd=new JButton("Add");
    private JButton jbChange=new JButton("Change");
    private JButton jbFirst=new JButton("First");
    private JButton jbNext=new JButton("Next");
    private JButton jbPrevious=new JButton("Previous");
    private JButton jbLast=new JButton("Last");
    private JPanel jp1=new JPanel();
    private JPanel jp2=new JPanel();
    private JPanel jp3=new JPanel();
    public Exercise16_4(){
        jp1.setLayout(new GridLayout(5,1));
        jp1.add(jlName);
        jp1.add(jlStreet);
        jp1.add(jlCity);
        jp1.add(jlState);
        jp1.add(jlZip);


        jp3.setLayout(new GridLayout(5,1));
        jp3.add(jtName);
        jp3.add(jtStreet);
        jp3.add(jtCity);
        jp3.add(jtState);
        jp3.add(jtZip);
        jp2.setLayout(new GridLayout(1,6));
        jp2.add(jbAdd);
        jp2.add(jbChange);
        jp2.add(jbFirst);
        jp2.add(jbNext);
        jp2.add(jbPrevious);
        jp2.add(jbLast);

        add(jp1,BorderLayout.WEST);
        add(jp3,BorderLayout.CENTER);
        add(jp2,BorderLayout.SOUTH);
    }
    public static void main(String[]a){
        Exercise16_4 frame=new Exercise16_4();
        frame.setTitle("Exercise16_4");
        frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
        frame.setLocationRelativeTo(null);
        frame.pack();
        frame.setVisible(true);
    }
}