Declarations and Access Modifiers in Java (Part 7) | Abstract Keyword in Java Explained | Fight4Tech

🔵 Welcome to Fight4Tech!
In this video, we dive deep into the abstract keyword in Java, part of the "Declarations and Access Modifiers" series (Part 7). Whether you're preparing for interviews or strengthening your Java foundation, understanding abstract classes and abstract methods is a must!

🚀 What you'll learn in this video:
✅ What is the abstract modifier in Java
✅ Difference between abstract class and abstract method
✅ Rules for using abstract methods
✅ Why abstract classes cannot be instantiated
✅ How subclasses implement abstract methods
✅ Real-world example with Animal, Dog, and Cat classes
✅ Guidelines for method implementation in child classes

📌 Key Takeaways:

Abstract methods provide a blueprint for subclasses.

Abstract classes can contain both abstract and concrete methods.

If a class has at least one abstract method, it must be declared abstract.

code ex :
abstract class Animal {
abstract void makeSound();
}

class Dog extends Animal {
void makeSound() {
System.out.println("Dog says: Bark! Bark!");
}
}

class Cat extends Animal {
void makeSound() {
System.out.println("Cat says: Meow! Meow!");
}
}
💡 Note: Abstract classes serve as templates and cannot be instantiated directly.

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