如何格式化JTable的内容

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

public class JTableFormattingExample {
    public static void main(String[] args) {
        JFrame frame = new JFrame("JTable Formatting Example");
        frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);

        // 创建表格模型
        DefaultTableModel model = new DefaultTableModel();
        model.addColumn("Name");
        model.addColumn("Age");
        model.addColumn("Salary");

        model.addRow(new Object[]{"John Doe", 30, 50000});
        model.addRow(new Object[]{"Jane Smith", 25, 60000});

        // 创建表格
        JTable table = new JTable(model);

        // 设置单元格渲染器
        DefaultTableCellRenderer renderer = new DefaultTableCellRenderer();
        renderer.setHorizontalAlignment(SwingConstants.CENTER);
        table.setDefaultRenderer(Object.class, renderer);

        // 添加表格到滚动面板
        JScrollPane scrollPane = new JScrollPane(table);
        frame.add(scrollPane);

        frame.pack();
        frame.setVisible(true);
    }
}

import javax.swing.*;
import javax.swing.table.DefaultCellEditor;
import javax.swing.JTextField;

public class JTableEditingExample {
    public static void main(String[] args) {
        JFrame frame = new JFrame("JTable Editing Example");
        frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);

        // 创建表格模型
        DefaultTableModel model = new DefaultTableModel();
        model.addColumn("Name");
        model.addColumn("Age");
        model.addColumn("Salary");

        model.addRow(new Object[]{"John Doe", 30, 50000});
        model.addRow(new Object[]{"Jane Smith", 25, 60000});

        // 创建表格
        JTable table = new JTable(model);

        // 设置单元格编辑器
        JTextField ageField = new JTextField();
        DefaultCellEditor ageEditor = new DefaultCellEditor(ageField);
        table.getColumnModel().getColumn(1).setCellEditor(ageEditor);

        // 添加表格到滚动面板
        JScrollPane scrollPane = new JScrollPane(table);
        frame.add(scrollPane);

        frame.pack();
        frame.setVisible(true);
    }
}

table.getColumnModel().getColumn(0).setPreferredWidth(150);
table.setRowHeight(25);

table.setBackground(Color.LIGHT_GRAY);
table.setForeground(Color.BLACK);
table.setBorder(BorderFactory.createLineBorder(Color.BLUE));