Java this Keyword: Calling Default Constructor | Java Tutorial

Welcome to our Java tutorial on using the `this` keyword to call a default constructor! In Java programming, the `this` keyword is used to refer to the current object instance. One of its capabilities is to invoke other constructors within the same class, including the default constructor. In this video, we'll explore how to leverage the `this` keyword to call a default constructor effectively.

**Understanding the `this` Keyword in Java:**
- The `this` keyword refers to the current object instance.
- It can be used to differentiate between instance variables and method parameters that share the same name.
- `this()` is a special use of the `this` keyword to call other constructors within the same class.

**How to Use `this` to Call Default Constructor:**
- Invoke the default constructor using `this()` within another constructor in the same class.
- Ensure that `this()` is the first statement in the constructor body to invoke the default constructor properly.

By using the `this` keyword to call the default constructor, we can initialize objects conveniently and ensure code reusability within Java classes.

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Let's explore the capabilities of the `this` keyword for invoking default constructors in Java together! Feel free to leave a comment below if you have any questions or feedback. Happy coding!

Java this Keyword: Calling Default Constructor | Java Tutorial

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[NeerajBhasin]

why this() should be the first call in constructor ?