提取数组中的前3项

const arr = [1, 2, 3, 4, 5, 6, 7, 8, 9, 10];
const extractedItems = arr.slice(0, 3);
console.log(extractedItems);

arr = [1, 2, 3, 4, 5, 6, 7, 8, 9, 10]
extracted_items = arr[:3]
print(extracted_items)

import java.util.Arrays;

public class Main {
    public static void main(String[] args) {
        int[] arr = {1, 2, 3, 4, 5, 6, 7, 8, 9, 10};
        int[] extractedItems = Arrays.copyOfRange(arr, 0, 3);
        System.out.println(Arrays.toString(extractedItems));
    }
}