保存Object[][]并加载它

import java.io.*;

public class ObjectArraySerialization {
    public static void main(String[] args) {
        Object[][] data = {{"John", 25}, {"Jane", 30}, {"Tom", 35}};

        // 保存Object[][]到文件
        try {
            FileOutputStream fileOut = new FileOutputStream("data.ser");
            ObjectOutputStream out = new ObjectOutputStream(fileOut);
            out.writeObject(data);
            out.close();
            fileOut.close();
            System.out.println("Object[][] saved successfully.");
        } catch (IOException e) {
            e.printStackTrace();
        }

        // 加载保存的Object[][]
        Object[][] loadedData = null;
        try {
            FileInputStream fileIn = new FileInputStream("data.ser");
            ObjectInputStream in = new ObjectInputStream(fileIn);
            loadedData = (Object[][]) in.readObject();
            in.close();
            fileIn.close();
            System.out.println("Object[][] loaded successfully.");
        } catch (IOException | ClassNotFoundException e) {
            e.printStackTrace();
        }

        // 打印加载的Object[][]
        if (loadedData != null) {
            for (Object[] row : loadedData) {
                for (Object item : row) {
                    System.out.print(item + " ");
                }
                System.out.println();
            }
        }
    }
}