Understanding Encapsulation in Java | This Keyword | Static | Core Java Full Course For Beginners

Welcome to Session 13 of our Core Java tutorial series! This video explores three important concepts in Java: this keyword, Encapsulation, and the Static keyword. These are crucial for writing clean, efficient, and object-oriented Java code.

✔️ this Keyword in Java:
Used to differentiate between class variables and local variables when they have the same name.
Example: this.variableName.

✔️ Encapsulation:
Wrapping data (variables) and methods into a single unit called a class.
Key Features:
1️⃣ Data Hiding: Keep internal states private and expose only methods to interact with the data.
2️⃣ Access Modifiers: Use private for data fields.
3️⃣ Getter and Setter Methods: Access and update private fields securely.

✔️ Static Keyword:
• Static Methods:
- Can directly access static variables and other static methods without an object.
- Access non-static variables and methods through objects.
• Non-Static Methods:
- Can directly access both static and non-static members.
✔️ Examples:
Using this to resolve variable name conflicts.

• Implementing encapsulation with private variables, getters, and setters.
• Working with static methods and variables in classes like System.out.println().

By the end of this video, you’ll have a solid understanding of these concepts and know how to apply them in your Java programs.

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