diff --git a/day05/src/com/inmind/array01/Demo07.java b/day05/src/com/inmind/array01/Demo07.java
new file mode 100644
index 0000000..8662c54
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+++ b/day05/src/com/inmind/array01/Demo07.java
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+package com.inmind.array01;
+//数组的操作_获取数组中的最大值
+public class Demo07 {
+    public static void main(String[] args) {
+        //定义一个数组
+        int[] arr = {100, 120, 30, 404, 150};
+        //数组中的最大值:直接与数组中每个元素比较，谁大，就记录谁
+        //定义一个最大值
+        int max = arr[0];
+        //遍历数组，依次判断谁大
+        for (int i = 1; i < arr.length; i++) {
+            //获取当前的元素值
+            int current = arr[i];
+            if (current > max) {
+                max = current;
+            }
+        }
+        System.out.println("数组中最大的值为："+max);
+
+    }
+}