【Java】图形界面设计实战练习

图形化界面设计（GUI）实战练习

学生成绩管理系统实战练习之登陆界面

学生成绩管理系统 2.0（图形界面）

实例一

代码：

package Gui;

import javax.swing.*;
import java.awt.*;

public class MyFrame extends JFrame {
    
    
    JPanel jP1,jp2,jp3;
    JLabel label1,label2;
    JButton button1,button2;
    JTextField text;
    JPasswordField password;

    public static void main(String[] args) {
    
    
        MyFrame myFrame = new MyFrame();
    }

    public MyFrame(){
    
    
        init();
        setTitle("登录界面");
        setBounds(300,300,250,150);
        setVisible(true);
        setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
    }
    void init(){
    
    
        setLayout(new GridLayout(3,1));
        jP1 = new JPanel();
        jp2 = new JPanel();
        jp3 = new JPanel();

        label1 = new JLabel("用户名");
        label2 = new JLabel("密 码");


        text = new JTextField(10);
        password = new JPasswordField(10);


        button1 = new JButton("登录");
        button2 = new JButton("取消");

        jP1.add(label1);
        jP1.add(text);

        jp2.add(label2);
        jp2.add(password);

        jp3.add(button1);
        jp3.add(button2);

        add(jP1);
        add(jp2);
        add(jp3);
    }
}

实例二

package Gui;

import javax.swing.*;
import java.awt.*;

public class MyFrame extends JFrame {
    
    
    JPanel jp1,jp2,jp3;
    JCheckBox checkBox1,checkBox2,checkBox3;
    ButtonGroup group;
    JRadioButton radioM,radioF;
    JLabel label1,label2;
    JButton button1,button2;

    public static void main(String[] args) {
    
    
        MyFrame myFrame = new MyFrame();
    }

    public MyFrame(){
    
    
        init();
        setTitle("用户注册界面");
        setBounds(300,300,300,200);
        setVisible(true);
        setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
    }
    void init(){
    
    
        setLayout(new GridLayout(3,1));
        jp1 = new JPanel();
        jp2 = new JPanel();
        jp3 = new JPanel();

        label1 = new JLabel("你喜欢的运动");
        label2 = new JLabel("你的性别");

        checkBox1 = new JCheckBox("足球");
        checkBox2= new JCheckBox("篮球");
        checkBox3 = new JCheckBox("网球");

        radioM = new JRadioButton("男");
        radioF = new JRadioButton("女");

        button1 = new JButton("注册用户");
        button2 = new JButton("取消用户");

        group = new ButtonGroup();
        group.add(radioM);
        group.add(radioF);

        jp1.add(label1);
        jp1.add(checkBox1);
        jp1.add(checkBox2);
        jp1.add(checkBox3);

        jp2.add(label2);
        jp2.add(radioM);
        jp2.add(radioF);

        jp3.add(button1);
        jp3.add(button2);

        add(jp1);
        add(jp2);
        add(jp3);


    }
}

实例三

代码：

package Gui;

import javax.swing.*;
import java.awt.*;

public class MyFrame extends JFrame {
    
    
    JPanel jp1,jp2,jp3;
    JLabel label1,label2;
    JComboBox comboBox;
    JList list;
    JScrollPane jScrollPane;

    public static void main(String[] args) {
    
    
        MyFrame myFrame = new MyFrame();
    }

    public MyFrame(){
    
    
        init();
        setTitle("下拉框练习");
        setBounds(300,300,300,300);
        setVisible(true);
        setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
    }
    void init(){
    
    
        setLayout(new GridLayout(3,1));
        jp1 = new JPanel();
        jp2 = new JPanel();
        jp3 = new JPanel();

        label1 = new JLabel("你的籍贯是");
        label2 = new JLabel("你喜欢旅游的地区是");


        String []str1 = {
    
    "北京","上海","天津","重庆","江苏"};
        comboBox = new JComboBox(str1);

        String []str2 = {
    
    "黄山","故宫","长城","九寨沟","天安门","火星"};
        list = new JList(str2);
        list.setVisibleRowCount(1);
        jScrollPane = new JScrollPane(list);

        jp1.add(label1);
        jp1.add(comboBox);

        jp2.add(label2);
        jp2.add(jScrollPane);

        add(jp1);
        add(jp3);
        add(jp2);



    }
}

实例四

代码：

package Gui;

import javax.swing.*;
import java.awt.*;

public class MyFrame extends JFrame {
    
    
    JSplitPane jSplitPane;
    JList list;
    JLabel label;

    public static void main(String[] args) {
    
    
        MyFrame myFrame = new MyFrame();
    }

    public MyFrame(){
    
    
        init();
        setBounds(300,300,400,300);
        setVisible(true);
        setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
    }
    void init(){
    
    
        String []words = {
    
    "boy","gril","bird","box"};
        list = new JList(words);

        label = new JLabel(new ImageIcon("idea_test/2.jpg"));
        jSplitPane = new JSplitPane(JSplitPane.HORIZONTAL_SPLIT,list,label);
        jSplitPane.setOneTouchExpandable(true);

        add(jSplitPane);



    }
}

实例五

代码：

package Gui;

import javax.swing.*;
import java.awt.*;

public class MyFrame extends JFrame {
    
    
    JSplitPane jSplitPane;
    JTextArea area;
    JTextField text;
    JComboBox comboBox;
    JButton button;
    JPanel jPanel;

    public static void main(String[] args) {
    
    
        MyFrame myFrame = new MyFrame();
    }

    public MyFrame(){
    
    
        init();
        setTitle("QQ登录");
        setBounds(300,300,300,200);
        setVisible(true);
        setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
    }
    void init(){
    
    
        String str[] = {
    
    "北京","上海","南京","合肥","洛阳","哈尔滨"};
        comboBox = new JComboBox(str);
        area = new JTextArea();
        add(new JScrollPane(area));

        text = new JTextField(10);
        button = new JButton("发送");
        jPanel = new JPanel();
        jPanel.add(comboBox);
        jPanel.add(text);
        jPanel.add(button);

        add(jPanel,BorderLayout.SOUTH);
        //设置左上角小头像
        setIconImage((new ImageIcon("idea_test\\2.jpg")).getImage());



    }
}