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+# java
+
+## 变量
+
+1. 字符
+
+```java
+char sex = '男';
+```
+
+
+
+1. 整数
+
+```java
+byte short int[默认] long 
+```
+
+
+
+1. 小数
+
+```java
+float double[默认]
+```
+
+
+
+1. 字符串
+
+```java
+String 
+```
+
+
+
+1. 布尔
+
+   ```java
+   boolean
+   ```
+
+   
+
+## 作业
+
+```java
+public class a {
+    public static void main(String[] args) {
+        System.out.println("代瑞你是帅的");
+    }
+}
+
+```
+