From 4eb64048bf3c0dcdb30419c7199873ba5a540d46 Mon Sep 17 00:00:00 2001
From: xuxin <840198532@qq.com>
Date: Wed, 20 May 2026 09:59:50 +0800
Subject: [PATCH] =?UTF-8?q?day08-static=E5=BA=94=E7=94=A8-Arrays-=E6=93=8D?=
 =?UTF-8?q?=E4=BD=9C=E6=95=B0=E7=BB=84=E7=9A=84=E5=B7=A5=E5=85=B7=E7=B1=BB?=
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---
 day08/src/com/inmind/arrays03/Demo14.java | 33 +++++++++++++++++++++++
 1 file changed, 33 insertions(+)
 create mode 100644 day08/src/com/inmind/arrays03/Demo14.java

diff --git a/day08/src/com/inmind/arrays03/Demo14.java b/day08/src/com/inmind/arrays03/Demo14.java
new file mode 100644
index 0000000..2b125ee
--- /dev/null
+++ b/day08/src/com/inmind/arrays03/Demo14.java
@@ -0,0 +1,33 @@
+package com.inmind.arrays03;
+
+import java.util.Arrays;
+
+/*
+arrays类的2个工具类方法
+
+public static String toString(int[] a) ：返回指定数组内容的字符串表示形式。
+
+public static void sort(int[] a) ：对指定的 int 型数组按数字升序进行排序。
+
+
+ */
+public class Demo14 {
+    //public static String toString(int[] a) ：返回指定数组内容的字符串表示形式。
+    public static void method1(String[] args) {
+        int[] arr1 = {1,2,3};
+        System.out.println(arr1);//[I@4eec7777
+        System.out.println(Arrays.toString(arr1));
+        double[] arr2 = {1.0,2.0,3.0};
+        System.out.println(arr2);//[D@3b07d329
+        System.out.println(Arrays.toString(arr2));
+    }
+
+    //public static void sort(int[] a) ：对指定的 int 型数组按数字升序进行排序。
+    public static void main(String[] args) {
+        int[] arr = {1, 22, 3, 4, 44, 66, 22, 31, 5};
+        System.out.println(Arrays.toString(arr));
+        Arrays.sort(arr);
+        System.out.println("排序之后：");
+        System.out.println(Arrays.toString(arr));
+    }
+}