diff --git "a/37\346\217\255\351\230\263\344\270\275/jyl.md" "b/37\346\217\255\351\230\263\344\270\275/jyl.md"
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+## Java
+
+1.字符
+
+```java
+char sex ="男"；
+```
+
+2.整数
+
+```java
+byte short int[默认] long
+```
+
+3.字符串
+
+```java
+String 
+```
+
+4.布尔
+
+```java
+boolean
+```
+
+5.小数
+
+```java
+float double
+```
+
+
+
+## 作业
+
+```java
+public class pass {
+    public static void main(String[] args) {
+        String name ="念哥";
+        int age=18;
+        String text="班班主任";
+        String ll="他";
+        System.out.println("2"+text+"是"+name);
+        System.out.println(ll+"温文儒雅，博学多才，气宇轩昂，聪明绝顶，风流倜傥");
+        System.out.println(ll+"是宇宙超级无敌大帅哥");
+        System.out.println("知道恐龙为什么灭绝吗，因为它们前肢太短，无法为"+name+"的帅气鼓掌");
+        System.out.println("要是我有你这颜值，出门都得横着走");
+        System.out.println("祝念哥永远18，");
+        System.out.println("麻烦大家动动小手，为我点个赞再走");
+
+    }
+}
+```
+
diff --git "a/37\346\217\255\351\230\263\344\270\275/jyl2.md.md" "b/37\346\217\255\351\230\263\344\270\275/jyl2.md.md"
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+```java
+import java.util.Scanner;
+
+public class java {
+    public static void main(String[] args) {
+        Scanner sc = new Scanner(System.in);
+        System.out.println("请输入四字数字");
+        int number = sc.nextInt();
+                int ge =number %10;
+                        int shi =number/10%10;
+                        int bai =number/100%10;
+                        int qian=number/1000;
+        System.out.println("这个数的千位数是："+qian+"百位数是："+bai+"十位数是"+shi+"个位数是："+ge);
+
+    }
+}
+```
+
+```java
+import java.util.Scanner;
+
+public class java2 {
+    public static void main(String[] args) {
+        Scanner sc =new Scanner(System.in);
+        System.out.println("请输入华氏温度");
+        int number =sc.nextInt();
+        int she =(number-32)*5/9;
+        System.out.println("摄氏温度"+she);
+        System.out.println("请输入摄氏温度");
+        int ggg=sc.nextInt();
+        int hua=(ggg*9/5+32);
+        System.out.println("华氏温度"+hua);
+    }
+}
+```
+
diff --git a/README.md b/README.md.md
similarity index 100%
rename from README.md
rename to README.md.md