java图形用户界面

在编写图形用户界面时，编译没问题，最后报错

Connected to the target VM, address: '127.0.0.1:52623', transport: 'socket'
Disconnected from the target VM, address: '127.0.0.1:52623', transport: 'socket'这个，百思不得其解

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

import javax.swing.GroupLayout;
import javax.swing.GroupLayout.Alignment;
import javax.swing.ImageIcon;
import javax.swing.JButton;
import javax.swing.JInternalFrame;
import javax.swing.JLabel;
import javax.swing.JTextArea;
import javax.swing.JTextField;

public class bookTypeAddInterFrame extends JInternalFrame {
    private JTextField bookTypeNameTxt;
    private JTextArea  bookTypeDescTxt;
    /**
     * Launch the application.
     */
    public static void main(String[] args) {
        EventQueue.invokeLater(new Runnable() {
            public void run() {
                try {
                    bookTypeAddInterFrame frame = new bookTypeAddInterFrame();
                    frame.setVisible(true);
                } catch (Exception e) {
                    e.printStackTrace();
                }
            }
        });
    }

    /**
     * Create the frame.
     */
    public bookTypeAddInterFrame() {
        setIconifiable(true);
        setClosable(true);
        setTitle("图书类别添加");
        setBounds(100, 100, 751, 461);

        JLabel lblNewLabel = new JLabel("图书类别名称：");
        lblNewLabel.setFont(new Font("华文行楷", Font.PLAIN, 20));

        JLabel lblNewLabel_1 = new JLabel("图书类别描述：");
        lblNewLabel_1.setFont(new Font("华文行楷", Font.PLAIN, 20));

        bookTypeNameTxt = new JTextField();
        bookTypeNameTxt.setColumns(10);

        JButton btnNewButton = new JButton("添加");
        btnNewButton.setIcon(new ImageIcon("C:\\Users\\zqt\\Desktop\\11\\add.png"));

        JButton btnNewButton_1 = new JButton("重置");
        btnNewButton_1.addActionListener(new ActionListener() {
            public void actionPerformed(ActionEvent e) {
                resetValueActionPerFormed(e);
            }
        });
        btnNewButton_1.setIcon(new ImageIcon("C:\\Users\\zqt\\Desktop\\11\\reset.png"));

        bookTypeDescTxt = new JTextArea();
        GroupLayout groupLayout = new GroupLayout(getContentPane());
        groupLayout.setHorizontalGroup(
                groupLayout.createParallelGroup(Alignment.LEADING)
                        .addGroup(groupLayout.createSequentialGroup()
                                .addGap(147)
                                .addGroup(groupLayout.createParallelGroup(Alignment.LEADING)
                                        .addComponent(lblNewLabel)
                                        .addComponent(lblNewLabel_1))
                                .addGap(41)
                                .addGroup(groupLayout.createParallelGroup(Alignment.LEADING)
                                        .addComponent(bookTypeDescTxt)
                                        .addComponent(bookTypeNameTxt, GroupLayout.PREFERRED_SIZE, 224, GroupLayout.PREFERRED_SIZE))
                                .addContainerGap(187, Short.MAX_VALUE))
                        .addGroup(groupLayout.createSequentialGroup()
                                .addGap(199)
                                .addComponent(btnNewButton, GroupLayout.PREFERRED_SIZE, 114, GroupLayout.PREFERRED_SIZE)
                                .addGap(59)
                                .addComponent(btnNewButton_1, GroupLayout.PREFERRED_SIZE, 118, GroupLayout.PREFERRED_SIZE)
                                .addContainerGap(249, Short.MAX_VALUE))
        );
        groupLayout.setVerticalGroup(
                groupLayout.createParallelGroup(Alignment.LEADING)
                        .addGroup(groupLayout.createSequentialGroup()
                                .addContainerGap(74, Short.MAX_VALUE)
                                .addGroup(groupLayout.createParallelGroup(Alignment.BASELINE)
                                        .addComponent(lblNewLabel, GroupLayout.PREFERRED_SIZE, 51, GroupLayout.PREFERRED_SIZE)
                                        .addComponent(bookTypeNameTxt, GroupLayout.PREFERRED_SIZE, 38, GroupLayout.PREFERRED_SIZE))
                                .addGroup(groupLayout.createParallelGroup(Alignment.LEADING)
                                        .addGroup(groupLayout.createSequentialGroup()
                                                .addGap(60)
                                                .addComponent(lblNewLabel_1, GroupLayout.PREFERRED_SIZE, 36, GroupLayout.PREFERRED_SIZE))
                                        .addGroup(groupLayout.createSequentialGroup()
                                                .addGap(40)
                                                .addComponent(bookTypeDescTxt, GroupLayout.PREFERRED_SIZE, 73, GroupLayout.PREFERRED_SIZE)))
                                .addGap(77)
                                .addGroup(groupLayout.createParallelGroup(Alignment.BASELINE)
                                        .addComponent(btnNewButton, GroupLayout.PREFERRED_SIZE, 36, GroupLayout.PREFERRED_SIZE)
                                        .addComponent(btnNewButton_1, GroupLayout.PREFERRED_SIZE, 34, GroupLayout.PREFERRED_SIZE))
                                .addGap(102))
        );
        getContentPane().setLayout(groupLayout);
    }
    /**
     * 重置事件处理（监听器）
     * @param e
     */
    protected void resetValueActionPerFormed(ActionEvent e) {
        // TODO Auto-generated method stub
        this.resetValue();
    }

    /**
     * 重置表单
     */
    private void resetValue() {
        this.bookTypeNameTxt.setText("");
        this.bookTypeDescTxt.setText("");
    }
}


```运行结果一直是

请大神帮忙！！！！！

看看这篇博客，看能不能解决你的问题
https://blog.csdn.net/qq_38617531/article/details/103199349