创建一个包含数据的数组并将其写入文件，然后从文件中读取数据并将其存储在另一个数组中。

示例代码：

创建数组并写入文件：

import java.io.*;
import java.util.*;

public class ArrayToFile {

    public static void main(String[] args) {
        int[] arr = {1, 2, 3, 4, 5};
        try {
            FileOutputStream fos = new FileOutputStream("array.txt");
            ObjectOutputStream oos = new ObjectOutputStream(fos);
            oos.writeObject(arr);
            oos.close();
            fos.close();
            System.out.printf("Array %s has been written to file array.txt", Arrays.toString(arr));
        } catch (IOException e) {
            e.printStackTrace();
        }
    }
}

从文件中读取数据并存储在数组中：

import java.io.*;
import java.util.*;

public class FileToArray {

    public static void main(String[] args) {
        int[] arr = null;
        try {
            FileInputStream fis = new FileInputStream("array.txt");
            ObjectInputStream ois = new ObjectInputStream(fis);
            arr = (int[]) ois.readObject();
            ois.close();
            fis.close();
            System.out.printf("Array %s has been read from file array.txt", Arrays.toString(arr));
        } catch (IOException e) {
            e.printStackTrace();
        } catch (ClassNotFoundException e) {
            e.printStackTrace();
        }
    }
}