用JAVA编写一段哈希表数据结构GUI代码

以下是一个简单的哈希表数据结构的GUI代码，使用Java Swing库：

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

public class HashTableGUI extends JFrame implements ActionListener {

    private JTextField keyField, valueField;
    private JButton insertButton, removeButton, searchButton;
    private JTextArea outputArea;

    private HashTable<String, String> hashTable;

    public HashTableGUI() {
        super("Hash Table GUI");

        hashTable = new HashTable<String, String>(10);

        JPanel inputPanel = new JPanel(new GridLayout(2, 2));
        inputPanel.add(new JLabel("Key:"));
        keyField = new JTextField();
        inputPanel.add(keyField);
        inputPanel.add(new JLabel("Value:"));
        valueField = new JTextField();
        inputPanel.add(valueField);

        insertButton = new JButton("Insert");
        insertButton.addActionListener(this);
        removeButton = new JButton("Remove");
        removeButton.addActionListener(this);
        searchButton = new JButton("Search");
        searchButton.addActionListener(this);

        JPanel buttonPanel = new JPanel(new GridLayout(1, 3));
        buttonPanel.add(insertButton);
        buttonPanel.add(removeButton);
        buttonPanel.add(searchButton);

        outputArea = new JTextArea(15, 40);
        outputArea.setEditable(false);

        JPanel mainPanel = new JPanel(new BorderLayout());
        mainPanel.add(inputPanel, BorderLayout.NORTH);
        mainPanel.add(buttonPanel, BorderLayout.CENTER);
        mainPanel.add(outputArea, BorderLayout.SOUTH);

        setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
        getContentPane().add(mainPanel);
        pack();
        setVisible(true);
    }

    public void actionPerformed(ActionEvent e) {
        if (e.getSource() == insertButton) {
            String key = keyField.getText();
            String value = valueField.getText();
            hashTable.insert(key, value);
            outputArea.append("Inserted: (" + key + ", " + value + ")\n");
            keyField.setText("");
            valueField.setText("");
        } else if (e.getSource() == removeButton) {
            String key = keyField.getText();
            String value = hashTable.remove(key);
            if (value != null) {
                outputArea.append("Removed: (" + key + ", " + value + ")\n");
            } else {
                outputArea.append("Key not found: " + key + "\n");
            }
            keyField.setText("");
            valueField.setText("");
        } else if (e.getSource() == searchButton) {
            String key = keyField.getText();
            String value = hashTable.search(key);
            if (value != null) {
                outputArea.append("Found: (" + key + ", " + value + ")\n");
            } else {
                outputArea.append("Key not found: " + key + "\n");
            }
            keyField.setText("");
            valueField.setText("");
        }
    }

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

此代码使用了 `HashTable` 类，该类实现了哈希表数据结构。GUI界面包括一个输入面板用于输入键和值，一个按钮面板用于插入、删除和搜索操作，以及一个文本区域用于输出结果。每个按钮都注册了一个 `ActionListener`，以便在用户单击按钮时执行适当的操作。