java gui组件_JAVA GUI界面组件学习

╰半夏微凉° 2022-11-05 10:55 183阅读 0赞

这周主要练习了GUI界面组件，设计了一个登陆界面，整体运用BorderLayout界面，将界面分为上、中、下，又将中间部分分为三层，运用了组合框来记录登陆ID，添加了复选框完善程序，基本实现了登陆界面的操作，需要进一步学习IO流让自己的程序可以添加登陆记录。以下是我的程序源代码(注：考虑到是登陆界面所以界面大小固定)。

import java.awt.BorderLayout;

import java.awt.GridLayout;

import java.awt.event.ActionEvent;

import java.awt.event.ActionListener;

import javax.swing.JButton;

import javax.swing.JCheckBox;

import javax.swing.JComboBox;

import javax.swing.JFrame;

import javax.swing.JLabel;

import javax.swing.JOptionPane;

import javax.swing.JPanel;

import javax.swing.JPasswordField;

import javax.swing.JTextField;

public class loginframe extends JFrame\{

String number\[\]=\{"2014330111","2014330112","2014330113","2014330114","2014330115","2014330116","2014330117"\};

private JComboBox combo;

private JPasswordField passField;

public loginframe()\{

this.setTitle("登录界面");

this.setSize(250, 180);

this.setResizable(false);

this.setLocationRelativeTo(this);

this.setDefaultCloseOperation(EXIT\_ON\_CLOSE);

this.setContentPane(createContentPanel());

private JPanel createContentPanel()\{

JPanel panel=new JPanel(new BorderLayout());

panel.add(BorderLayout.NORTH,createNPanel());

panel.add(BorderLayout.CENTER,createCeterPanel());

panel.add(BorderLayout.SOUTH,createSPanel());

return panel;

private JPanel createNPanel()\{

JPanel panel=new JPanel();

panel.add(new JLabel("登陆系统"),JLabel.CENTER);

return panel;

private JPanel createCeterPanel()\{

JPanel panel=new JPanel(new BorderLayout());

panel.add(BorderLayout.NORTH,createIDPassPanel());

panel.add(BorderLayout.SOUTH,createOptionsPanel());

return panel;

private JPanel createOptionsPanel() \{

JPanel panel=new JPanel();

JCheckBox box1=new JCheckBox("记住密码");

JCheckBox box2=new JCheckBox("自动登录");

panel.add(box1);

panel.add(box2);

return panel;

private JPanel createIDPassPanel()\{

JPanel panel=new JPanel(new GridLayout(2,1));

panel.add(createIDPanel());

panel.add(createPassPanel());

return panel;

private JPanel createPassPanel()\{

JPanel panel=new JPanel(new BorderLayout());

JLabel label=new JLabel("密码：");

passField=new JPasswordField(10);

panel.add(BorderLayout.WEST,label);

panel.add(BorderLayout.CENTER,passField);

return panel;

private JPanel createIDPanel()\{

JPanel panel=new JPanel(new BorderLayout());

JLabel label=new JLabel("账号：");

combo=new JComboBox(number);

combo.addActionListener(new ActionListener() \{

@Override

public void actionPerformed(ActionEvent e) \{

// TODO Auto-generated method stub

\});

panel.add(BorderLayout.WEST,label);

panel.add(BorderLayout.CENTER,combo);

return panel;

private JPanel createSPanel()\{

JPanel panel=new JPanel();

JButton loginBtn=new JButton("登陆");

loginBtn.addActionListener(new ActionListener() \{

@Override

public void actionPerformed(ActionEvent arg0) \{

if(JOptionPane.YES\_OPTION==JOptionPane.showConfirmDialog(null,"确认要登陆吗？"))\{

System.exit(0);\}

\}\});

JButton cancelBtn=new JButton("取消");

panel.add(loginBtn);

panel.add(cancelBtn);

cancelBtn.addActionListener(new ActionListener() \{

@Override

public void actionPerformed(ActionEvent arg0) \{

// TODO Auto-generated method stub

if(JOptionPane.YES\_OPTION==JOptionPane.showConfirmDialog(null,"确认要退出吗？"))\{

System.exit(0);\}

\});

return panel;

public static void main(String\[\] args) \{

// TODO Auto-generated method stub

new loginframe().setVisible(true);

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[6b698f4019b5c1a03522853a7db1ed75.png]: /images/20221023/8db1160e9b7d4bce94c2a879443f5d53.png
[91d89d6e6c8166c94ad04ecafc36d9a2.png]: /images/20221023/a9108aa026e74262899f0fd606cd4c72.png
[52a3ddc73867357f73864e19754fb34d.png]: /images/20221023/a92a7163ef4a4e1d8a48495f3c8b29f1.png
[a7434cc649d571fa39db0e96091ef621.png]: /images/20221023/37041dfa098a4d1db2be93aa37e81de4.png