如何使用JTextArea输入字符串的字符计算单词的平均值

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

public class WordCountCalculator {
    public static void main(String[] args) {
        JFrame frame = new JFrame("Word Count Calculator");
        frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
        
        JTextArea textArea = new JTextArea(10, 30);
        JButton calculateButton = new JButton("Calculate");
        JLabel resultLabel = new JLabel("Average word length: ");
        
        calculateButton.addActionListener(new ActionListener() {
            @Override
            public void actionPerformed(ActionEvent e) {
                String text = textArea.getText();
                String[] words = text.split("\\s+"); // 使用空白字符作为分隔符，包括空格、制表符、换行符等
                
                int wordCount = words.length;
                int charCount = 0;
                for (String word : words) {
                    charCount += word.length();
                }
                
                double averageLength = (double) charCount / wordCount;
                resultLabel.setText("Average word length: " + averageLength);
            }
        });
        
        JPanel panel = new JPanel();
        panel.add(new JScrollPane(textArea));
        panel.add(calculateButton);
        panel.add(resultLabel);
        
        frame.getContentPane().add(panel);
        frame.pack();
        frame.setVisible(true);
    }
}