Скачать или смотреть Episode 9 - Constructors & this Keyword in Java 21 | Default, Parameterized, Chaining & More

In this video, we explore everything about constructors in Java 21 - from basic to advanced. You’ll learn how objects are initialized, how constructor overloading works, how to chain constructors using this(), and how the this keyword helps manage object data cleanly.

💡 What You’ll Learn:

What is a Constructor and how it works in memory
Default Constructor vs Parameterized Constructor
Constructor Overloading in Java
Constructor Chaining using this()
this keyword explained in detail
Calling parent constructors using super()
Private Constructors & Singleton pattern
Compact Constructors in Java 21 Records
Common mistakes with constructors

⚙️ Code Examples Covered:

Default constructor initialization
Parameterized constructors
Chained constructors (this())
Parent-child constructor call with super()
Record compact constructor