Update java-basic-questions-01.md

Snailclimb · web-flow · commit 4e10294d597f · 2022-03-24T11:08:09.000+08:00
diff --git a/docs/java/basis/java-basic-questions-01.md b/docs/java/basis/java-basic-questions-01.md
@@ -549,7 +549,7 @@ Java 中有 8 种基本数据类型，分别为：
 
 ```java
 class BasicTypeVar{
-				private int x;
+  private int x;
 }
 ```
 
