One 、Lambda Expressions make it easy to create anonymous inner class objects

1、 Unwanted new XXX(){} This kind of tedious code .

2、 There is no need to indicate the name of the overridden method .

3、 Don't give the return value type of the overridden method .

4、Lambda Equivalent to an anonymous method .

Lambda The expression consists of the following three parts :

1、 Parameter list : Parameter types are allowed to be omitted , If there is only one parameter in the list , Even parentheses in parameter lists can be omitted .

2、 arrow ->: English characters .

3、 Code block : If the code block has only one sentence , It's allowed to omit curly braces for code blocks , There is only one sentence return sentence , It can be omitted return keyword .

The following procedure will be a simple demonstration :

【Java】Java8 Newly added Lambda expression _ Learn more about notes

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