Commit 4164f04

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代码排版、修改错别字

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Lines changed: 3 additions & 2 deletions

Original file line number	Diff line number	Diff line change
`@@ -75,7 +75,8 @@ if (parser == null) {`
`75`	`75`	`}`
`76`	`76`	`Action action = parser.findAction(someInput);`
`77`	`77`	`if (action == null) {`
`78`		`- // do nothing} else {`
	`78`	`+ // do nothing}`
	`79`	`+else {`
`79`	`80`	`action.doSomething();}`
`80`	`81`	```
`81`	`82`
`@@ -95,7 +96,7 @@ ParserFactory.getParser().findAction(someInput).doSomething();`
`95`	`96`	`而不是`
`96`	`97`	`foo.equals("bar") `
`97`	`98`	`- Java8或者guava lib中,提供了Optional类,这是一个元素容器,通过它来封装对象,可以减少判空。不过代码量还是不少。不爽。`
`98`		`-- 如果你想返回null,请挺下来想一想,这个地方是否更应该抛出一个异常`
	`99`	`+- 如果你想返回null,请停下来想一想,这个地方是否更应该抛出一个异常`
`99`	`100`
`100`	`101`	`stackoverflow链接:`
`101`	`102`	`http://stackoverflow.com/questions/271526/avoiding-null-statements-in-java?page=2&tab=votes#tab-top`

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