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authorLevi Bostian <levi.bostian@gmail.com>2015-01-19 10:03:45 -0600
committerLevi Bostian <levi.bostian@gmail.com>2015-01-19 10:03:45 -0600
commit62c47e7c3289f129e495bafb57673213fb43b0d9 (patch)
treebd8fc0be2506f2a4666e856dca4bc88b92cb0892
parentec52390c600479fc87ec0a7880f21d48a30172d4 (diff)
parentd543f672c41dd9cc377bd6b4076ed6db7c91b781 (diff)
Merge pull request #931 from geoffliu/master
[Java/zh-cn] Fix explanation for ++ and -- operators.
-rw-r--r--zh-cn/java-cn.html.markdown15
1 files changed, 9 insertions, 6 deletions
diff --git a/zh-cn/java-cn.html.markdown b/zh-cn/java-cn.html.markdown
index f7d319e6..f08d3507 100644
--- a/zh-cn/java-cn.html.markdown
+++ b/zh-cn/java-cn.html.markdown
@@ -124,7 +124,7 @@ public class LearnJava {
// HashMaps
///////////////////////////////////////
- // 操作符
+ // 操作符
///////////////////////////////////////
System.out.println("\n->Operators");
@@ -161,10 +161,13 @@ public class LearnJava {
// 自增
int i = 0;
System.out.println("\n->Inc/Dec-rementation");
- System.out.println(i++); //i = 1 后自增
- System.out.println(++i); //i = 2 前自增
- System.out.println(i--); //i = 1 后自减
- System.out.println(--i); //i = 0 前自减
+ // ++ 和 -- 操作符使变量加或减1。放在变量前面或者后面的区别是整个表达
+ // 式的返回值。操作符在前面时,先加减,后取值。操作符在后面时,先取值
+ // 后加减。
+ System.out.println(i++); // 后自增 i = 1, 输出0
+ System.out.println(++i); // 前自增 i = 2, 输出2
+ System.out.println(i--); // 后自减 i = 1, 输出2
+ System.out.println(--i); // 前自减 i = 0, 输出0
///////////////////////////////////////
// 控制结构
@@ -192,7 +195,7 @@ public class LearnJava {
}
System.out.println("fooWhile Value: " + fooWhile);
- // Do While循环
+ // Do While循环
int fooDoWhile = 0;
do
{