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Sep 14, 2019
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Update java-operator.md #108

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6 changes: 3 additions & 3 deletions contents/java-operator.md
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Original file line number Diff line number Diff line change
@@ -1,6 +1,6 @@
##Java += 操作符实质
## Java += 操作符实质

###问题
### 问题
我之前以为：
i += j 等同于 i = i + j;
但假设有：
Expand All @@ -11,7 +11,7 @@ long j = 8;
这时 i = i + j 不能编译，但 i += j 却可以编译。这说明两者还是有差别的
这是否意味着，i += j，实际是等同于 i= (type of i) (i + j)呢？

###回答
### 回答
这个问题，其实官方文档中已经解答了。 请看这里 [§15.26.2 Compound Assignment Operators](http://docs.oracle.com/javase/specs/jls/se8/html/jls-15.html#jls-15.26.2)


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