将数据文件中的整数存储到数组Java中

import java.io.BufferedReader;
import java.io.FileReader;
import java.io.IOException;
import java.util.ArrayList;
import java.util.List;

public class IntegerArrayFromFile {
    public static void main(String[] args) {
        String filePath = "data.txt"; // 数据文件路径

        List<Integer> integerList = new ArrayList<>();

        try (BufferedReader reader = new BufferedReader(new FileReader(filePath))) {
            String line;
            while ((line = reader.readLine()) != null) {
                int number = Integer.parseInt(line);
                integerList.add(number);
            }
        } catch (IOException e) {
            e.printStackTrace();
        }

        // 将List转换为数组
        Integer[] integerArray = integerList.toArray(new Integer[0]);

        // 打印数组内容
        for (int i = 0; i < integerArray.length; i++) {
            System.out.println("Element at index " + i + ": " + integerArray[i]);
        }
    }
}