图形用户界面

Posted 2020-10-15 薄荷*糖糖

图形用户界面

今天老师布置了一个实验，用Java实现图形用户界面，按照习惯依旧贴出来了。

功能还可以后继添加，掌握各种组件的使用和布局管理器以及点击事件，实现界面如图所示：

实现代码如下：

package test;

import java.awt.Dimension;
import java.awt.EventQueue;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;

import javax.swing.JButton;
import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.JPanel;
import javax.swing.JScrollPane;
import javax.swing.JTable;
import javax.swing.JTextField;
import javax.swing.border.EmptyBorder;
import javax.swing.table.DefaultTableModel;

/**
 * 图形用户界面测试类
 * 实现用户数据信息的添加
 * @author TangJiang
 * 2017年11月16日 下午10:09:28
 *
 */
public class Test extends JFrame {

    // public static final ArrayList<Object> list = new ArrayList<Object>();
    private JPanel contentPane;
    private JTextField nameField;
    private JTextField ageField;
    private JTextField sexField;
    private JTextField telField;
    private JTable table;
    private JButton addButton;
    private DefaultTableModel dtm;

    /**
     * Launch the application.
     */
    public static void main(String[] args) {
        EventQueue.invokeLater(new Runnable() {
            public void run() {
                try {
                    Test frame = new Test();
                    frame.setVisible(true);
                } catch (Exception e) {
                    e.printStackTrace();
                }
            }
        });
    }

    /**
     * Create the frame.
     */
    public Test() {
        setTitle("用户信息添加");
        setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
        setBounds(100, 100, 477, 367);
        contentPane = new JPanel();
        contentPane.setBorder(new EmptyBorder(5, 5, 5, 5));
        setContentPane(contentPane);
        contentPane.setLayout(null);

        //用户标签
        JLabel lblNewLabel = new JLabel("用户名：");
        lblNewLabel.setBounds(249, 17, 54, 15);
        contentPane.add(lblNewLabel);

        //年龄标签
        JLabel lblNewLabel_1 = new JLabel("年 龄：");
        lblNewLabel_1.setBounds(249, 77, 54, 15);
        contentPane.add(lblNewLabel_1);

        //性别标签
        JLabel lblNewLabel_2 = new JLabel("性  别：");
        lblNewLabel_2.setBounds(249, 147, 54, 15);
        contentPane.add(lblNewLabel_2);

        //电话标签
        JLabel lblNewLabel_3 = new JLabel("电  话：");
        lblNewLabel_3.setBounds(249, 221, 54, 15);
        contentPane.add(lblNewLabel_3);

        //姓名文本输入框
        nameField = new JTextField();
        nameField.setBounds(313, 14, 131, 21);
        contentPane.add(nameField);
        nameField.setColumns(10);

        //年龄文本输入框
        ageField = new JTextField();
        ageField.setBounds(313, 74, 131, 21);
        contentPane.add(ageField);
        ageField.setColumns(10);

        //性别文本输入框
        sexField = new JTextField();
        sexField.setBounds(313, 147, 131, 21);
        contentPane.add(sexField);
        sexField.setColumns(10);

        //电话文本输入框
        telField = new JTextField();
        telField.setBounds(313, 218, 131, 21);
        contentPane.add(telField);
        telField.setColumns(10);

        //数据添加按钮
        addButton = new JButton("添加");
        addButton.setBounds(309, 283, 93, 23);
        contentPane.add(addButton);

        //滚动窗面板
        JScrollPane scrollPane = new JScrollPane();
        scrollPane.setBounds(10, 10, 218, 250);
        contentPane.add(scrollPane);

        //将表格框添加入滚动窗
        table = new JTable();
        //设置表格默认模型
        dtm = new DefaultTableModel(
                new Object[][] { { "\\u5F20\\u4E09", "20", "\\u7537", "123456" },
                        { "\\u674E\\u56DB", "20", "\\u7537", "123456" }, },
                new String[] { "\\u59D3\\u540D", "\\u5E74\\u9F84", "\\u6027\\u522B", "\\u7535\\u8BDD" });
        table.setModel(dtm);
        table.setBounds(10, 10, 200, 200);

        // 设置首选大小[除了窗体以外的组件都需要设置首选大小]
        scrollPane.setPreferredSize(new Dimension(500, 400));
        // 设置自动出现滚动条
        scrollPane.setAutoscrolls(true);
        scrollPane.setViewportView(table);

        /**
         * 创建按钮点击事件添加数据
         */
        addButton.addActionListener(new ActionListener() {

            @Override
            public void actionPerformed(ActionEvent e) {

                //分别取得文本框的内容
                String name = nameField.getText();
                String age = ageField.getText();
                String sex = sexField.getText();
                String tel = telField.getText();

                //将文本框的内容添加入表格
                dtm.addRow(new String[]{name,age,sex,tel});
            }

        });
    }
}

 最后，为了便于自己以后找到组件的拖拽的位置，写出创建类的步骤：

点击工程新建，点击其他<other>，然后输入jf，点击创建JFrame。