package com.leo;

import java.util.Arrays;

public class ArraysTest {
    public static void main(String[] args) {
        int[] arr1 = new int[]{1, 2, 3, 4};
        int[] arr2 = new int[]{1, 3, 2, 4};
        // 判断两个数组是否相等
        boolean isEquals = Arrays.equals(arr1, arr2);
        System.out.println(isEquals);

        // 输出数组信息
        System.out.println(Arrays.toString(arr1));

        // 将指定值填充到数组中
        Arrays.fill(arr1, 10);
        System.out.println(Arrays.toString(arr1));

        // 对数组进行排序
        Arrays.sort(arr2);
        System.out.println(Arrays.toString(arr2));

        // 二分查找
        int[] arr3 = new int[]{-98, -34, 2, 34, 54, 66, 79, 321};
        int index = Arrays.binarySearch(arr3, 2);
        if (index >= 0) {
            System.out.println(index);
        } else {
            System.out.println("未找到");
        }
    }
}