这段代码转成GBK编码： public BookAdd(){ setTitle("添加新书"); setLayout(null); setSize(700,250); setResizable(false); //this.setOpaque(false); this.setForeground(Color.BLACK); int lx=50,ly=50; booktype.add("程序设计"); booktype.add("图形设计"); booktype.add("其他"); booktype.add("科技"); booktype.add("文学"); booktype.add("历史"); booktype.add("百科"); booktype.add("英语"); booktype.add("计算机"); booktype.add("Internet"); booktype.add("数学"); String str=getInsertOrderedList(); for(int i=0;i<booklb.length;i++){ if(lx>240){ lx=50; ly=ly+30; } booklb[i]=new JLabel(lbname[i]); booklb[i].setBounds(lx-10,ly,70,20); booktxt[i]=new TextField(); booktxt[i].setBounds(lx+60,ly,100,20); lx=lx+190; add(booklb[i]);add(booktxt[i]); } booktxt[0].setEditable(false); booktxt[0].setText(str); booktxt[9].setVisible(false); savebtn.setFont(new Font("楷体",Font.BOLD,12)); closebtn.setFont(new Font("楷体",Font.BOLD,12)); //下拉框选项设置 booktype.setBounds(300,170,100,20); savebtn.setBounds(130,210,80,25); closebtn.setBounds(280,210,80,25); add(booktype); add(savebtn); add(closebtn); addWindowListener(new WindowAdapter(){ public void windowClosing(WindowEvent e){ dispose(); ShowMain cMain=new ShowMain(); cMain.setRights(GlobalVar.manage); } }); savebtn.addActionListener(this); closebtn.addActionListener(this); setLocationRelativeTo(null); setVisible(true); }

这段代码是Java代码，没有被转换为GBK编码。该代码实现了一个图形界面，用于添加新书，它设置了窗口的标题、布局、大小和可调整性。在窗口中添加了标签、文本字段、按钮、下拉框等组件，并为这些组件设置了位置和功能。窗口关闭时会释放资源并显示主界面。

相关问题

将下列代码改错import java.swing.* import iava.art.* public class MyThread extends JFrane implements Thread JTextField output; public llyThreadO int i=0: TLabelnote; setTitle(”多线程示例” JTextField(10) output.setFont(new Font output=new Font. PLAIN, 20)) note-ner JLabel(”自增的数字： 虽体” setLayout(new FlovLayoutO) add(note add(output setSize(380.150) setVisible(true runner= new Thread( ) runner.RunO; Thread public rruno while(true try Thread.sleep(500);//休眠0.5秒 output.setText( if(i=10) +(1++)) JoptionPane.showDialog(nul1，“线程执行了“+i+"次”，“时间提醒”，JOptionPane.INFORMATION_MESScatch(IOException e) public static void nain(string arg[]) new lyThreadO

Sure, here's the corrected code:

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

public class MyThread extends JFrame implements Runnable {
    private int i = 0;
    private JTextField output;
    private JLabel note;

    public MyThread() {
        setTitle("多线程示例");
        output = new JTextField(10);
        output.setFont(new Font(Font.PLAIN, 20));
        note = new JLabel("自增的数字：");
        setLayout(new FlowLayout());
        add(note);
        add(output);
        setSize(380, 150);
        setVisible(true);
        Thread runner = new Thread(this);
        runner.start();
    }

    public void run() {
        while (true) {
            try {
                Thread.sleep(500);
                i++;
                output.setText(String.valueOf(i));
                if (i == 10) {
                    JOptionPane.showMessageDialog(null, "线程执行了" + i + "次", "时间提醒", JOptionPane.INFORMATION_MESSAGE);
                }
            } catch (InterruptedException e) {
                e.printStackTrace();
            }
        }
    }

    public static void main(String[] args) {
        new MyThread();
    }
}

The corrections include:

- Fixing the import statements to use `javax.swing` instead of `java.swing` and `java.awt` instead of `iava.art`.
- Implementing the `Runnable` interface instead of extending `Thread`.
- Removing the `Thread` declaration inside the class.
- Changing `llyThreadO` to `MyThread`.
- Fixing the syntax of the font creation line.
- Fixing the syntax of the `if` statement inside the `run` method.
- Changing the `catch` block from `IOException` to `InterruptedException`.
- Adding a call to `String.valueOf()` when setting the text of the `output` field.

import javax.swing.*; import java.awt.*; import java.awt.event.*; class LoginFrame extends JFrame implements ActionListener { private JTextField usernameField; private JPasswordField passwordField; private JButton loginButton; public LoginFrame() { setTitle("登录"); setLayout(new GridLayout(3, 2, 10, 10)); // 添加用户名和密码输入框 JLabel usernameLabel = new JLabel("用户名："); usernameField = new JTextField(); JLabel passwordLabel = new JLabel("密码："); passwordField = new JPasswordField(); add(usernameLabel); add(usernameField); add(passwordLabel); add(passwordField); // 添加登录按钮 loginButton = new JButton("登录"); loginButton.addActionListener(this); add(new JLabel()); // 空白占位符 add(loginButton); setSize(300, 150); setLocationRelativeTo(null); // 窗口居中 setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE); setVisible(true); } @Override public void actionPerformed(ActionEvent e) { if (e.getSource() == loginButton) { String username = usernameField.getText(); String password = new String(passwordField.getPassword()); // 在这里编写登录验证逻辑，比如查询数据库等 // 如果验证通过，则关闭登录窗口，打开主窗口 dispose(); new MainFrame(); } } public static void main(String[] args) { new LoginFrame(); } } class MainFrame extends JFrame { public MainFrame() { setTitle("欢迎"); setSize(300, 200); setLocationRelativeTo(null); // 窗口居中 setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE); setVisible(true); } }

这段代码是一个简单的 Java Swing 窗口程序，实现了一个简单的登录界面和一个欢迎界面。其中 LoginFrame 类继承了 JFrame 类，并实现了 ActionListener 接口，用于监听登录按钮的点击事件。在点击登录按钮后，会获取用户名和密码的输入，然后在 actionPerformed 方法中编写登录验证逻辑，比如查询数据库等。如果验证通过，则关闭登录窗口，打开主窗口。MainFrame 类同样继承了 JFrame 类，用于显示欢迎界面。在 main 方法中，创建一个 LoginFrame 对象，即可显示登录窗口。