Java Method Reference & Stream API : Learn to Write Clean Code

Veröffentlicht am: 03 August 2024
auf dem Kanal: Selenium Express

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In this video, We will learn about the method reference in java 8 and how it really works.

Method references are introduced first in Java 8 and they can substitute a Single line lambda where within a lambda we just call a method.

Method reference in java are very readable helps to write clean code.

In this video We will learn the following :
1. what are Method references in Java ?
2. Need of Method references in Java
3. Using existing functional interfaces to create method reference
4. What are the different types of method reference we have in java 8
5.How to use method reference with Stream API

We will talk about all the types of method reference with example.

Type 1 : Reference to a static method
Type 2 : Reference to an instance method of a particular object
Type 3 : Reference to an instance method of an arbitrary object of a particular type
Type 4 : Reference to a constructor

timestamp
-------------------
00:00 - Method Reference : Up Next
02:56 - What is method reference in Java ?
08:17 - Type 1 : Static Method Reference
11:51 - Type 2 : Reference to an instance method of a particular object
12:47 - Difference between Direct Method call vs Method Reference
17:52 - Type 3 : Reference to an instance method of an arbitrary object
32:16 - String::Concat and BiFunction
39:31 - String::toUpperCase
50:25 - System.out::println vs PrintStream::println
59:49- ArrayList::add
01:09:41 - Reference to a constructor
01:13:54 - Employee::New
01:15:16 - Referring to a one arg constructor
01:20:01 - Stream API & Method Reference

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