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This article mainly introduces the relevant knowledge of "how to quote the four methods in java8". The editor shows you the operation process through an actual case. The operation method is simple, fast and practical. I hope this article "how to quote four methods in java8" can help you solve the problem.

1. Constructor reference

Test test = Test.create (Test::new)

2. Static method reference

Test.operate (1, 2, Test::add)

3. Instance method reference of object

Test.operate (1, 2, test::sub)

4. The instance method reference of the class first satisfies the instance method rather than the static method.

The first parameter of the Lambda expression will be the object that invokes the instance.

What are the collection classes in test.test (Test::testM); what are the collection classes in Java? the collections in Java fall into four main categories:

1. List list: ordered and repeatable

2. Queue queue: orderly and repeatable

3. Set collection: non-repeatable

4. Map mapping: unordered, key unique, value not unique.

This is the end of the introduction to "how to quote four methods in java8". Thank you for reading. If you want to know more about the industry, you can follow the industry information channel. The editor will update different knowledge points for you every day.

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