From 92b6cb11140c196dbf659735cc20a0a34b0d4cf6 Mon Sep 17 00:00:00 2001
From: xuxin <840198532@qq.com>
Date: Sat, 25 Jul 2026 09:55:15 +0800
Subject: [PATCH] =?UTF-8?q?day08-static=E5=BA=94=E7=94=A8-Arrays-=E6=93=8D?=
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 =?UTF-8?q?=5FtoString=5Fsort?=
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---
 day08/src/com/inmind/arrays03/Demo13.java | 37 +++++++++++++++++++++++
 1 file changed, 37 insertions(+)
 create mode 100644 day08/src/com/inmind/arrays03/Demo13.java

diff --git a/day08/src/com/inmind/arrays03/Demo13.java b/day08/src/com/inmind/arrays03/Demo13.java
new file mode 100644
index 0000000..3beae10
--- /dev/null
+++ b/day08/src/com/inmind/arrays03/Demo13.java
@@ -0,0 +1,37 @@
+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 Demo13 {
+    public static void main(String[] args) {
+        //public static String toString(int[] a) ：返回指定数组内容的字符串表示形式。
+        int[] arr = {10, 20, 30, 40, 50};
+        System.out.println(arr);//[I@4eec7777
+        /*for (int i = 0; i < arr.length; i++) {
+            System.out.println(arr[i]);
+        }*/
+        //工具类arrays，展示数组的内容
+        /*String result = Arrays.toString(arr);
+        System.out.println(result);*/
+        System.out.println(Arrays.toString(arr));
+        System.out.println("-----------------------------------");
+        int[] arr1 = {1,22,333,44,5,666,77};
+        //public static void sort(int[] a) ：对指定的 int 型数组按数字升序进行排序。
+        System.out.println(Arrays.toString(arr1));
+        //排序
+        Arrays.sort(arr1);
+        System.out.println(Arrays.toString(arr1));
+        //降序获取，（反向遍历获取数据即可）
+        for (int i = arr1.length - 1; i >= 0; i--) {
+            System.out.println(arr1[i]);
+        }
+    }
+}