diff --git a/day07/src/com/inmind/scanner01/Demo02.java b/day07/src/com/inmind/scanner01/Demo02.java
index 04a31df..094d866 100644
--- a/day07/src/com/inmind/scanner01/Demo02.java
+++ b/day07/src/com/inmind/scanner01/Demo02.java
@@ -1,5 +1,18 @@
 package com.inmind.scanner01;
+
+import java.util.Scanner;
+
 //键盘录入两个整数求和
 public class Demo02 {
+    public static void main(String[] args) {
+        Scanner sc = new Scanner(System.in);
+        //接收2个整数
+        System.out.println("请输入一个整数：");
+        int a  = sc.nextInt();
+        System.out.println("请输入第二个整数：");
+        int b  = sc.nextInt();
+        //求和
+        System.out.println("和值："+(a+b));
+    }
 
 }
diff --git a/day07/src/com/inmind/scanner01/Demo03.java b/day07/src/com/inmind/scanner01/Demo03.java
index 11bbc33..64c65c6 100644
--- a/day07/src/com/inmind/scanner01/Demo03.java
+++ b/day07/src/com/inmind/scanner01/Demo03.java
@@ -1,4 +1,30 @@
 package com.inmind.scanner01;
+
+import java.util.Scanner;
+
 //键盘录入三个整数求最大值(可以动态地创建数组，来接收输入的内容,使用for来简化重新的代码)
 public class Demo03 {
+    public static void main(String[] args) {
+        //创建Scanner对象
+        Scanner sc = new Scanner(System.in);
+        System.out.println("请您输入要比较大小的整数的个数：");
+
+        int num = sc.nextInt();//由用户决定
+        //动态初始化创建长度为3的数组
+        int[] arr = new int[num];
+        //for循环遍历，获取用户输入的整数
+        for (int i = 0; i < num; i++) {
+            System.out.println("请输入第"+(i+1)+"个整数：");
+            arr[i]  = sc.nextInt();
+        }
+        //计算数组中哪个值最大
+        int max = arr[0];
+        for (int i = 0; i < arr.length; i++) {
+            if (arr[i] > max) {
+                max = arr[i];
+            }
+        }
+        System.out.println("您输入的最大值为："+max);
+
+    }
 }