Method Overriding

title: Method Overriding description: Java mein method overriding ka concept

Child class parent class ke method ko apne according redefine karta hai.

Rules

Same method name
Same parameters
Same return type (ya covariant)
IS-A relationship hona chahiye
private, static, final methods override nahi hote

java exampleWoHoTech

class Animal {
    String name;
    void makeSound() { System.out.println("Koi awaaz..."); }
    void eat() { System.out.println("Kha raha hai"); }
}

class Dog extends Animal {
    @Override
    void makeSound() { System.out.println("Bhow Bhow!"); }
    // eat() override nahi kiya — parent wala use hoga
}

class Cat extends Animal {
    @Override
    void makeSound() { System.out.println("Meow!"); }
}

@Override Annotation

Optional hai but strongly recommended
Compiler galtiyan pakad leta hai
Readability badhti hai

Covariant Return Type

Child class override mein narrower return type return kar sakta hai.

java exampleWoHoTech

class Parent {
    Parent getInstance() { return new Parent(); }
}
class Child extends Parent {
    @Override
    Child getInstance() { return new Child(); } // OK — covariant
}

super se Parent Method Call

java exampleWoHoTech

class Child extends Parent {
    @Override
    void display() {
        super.display(); // Parent method bhi chalao
        System.out.println("Child display");
    }
}

Overloading vs Overriding

	Overloading	Overriding
--	--	--
Class	Same class	Different classes
Parameters	Different	Same
Resolved at	Compile time	Runtime
Inheritance	Not required	Required

title: Method Overriding description: Java mein method overriding ka concept

Child class parent class ke method ko apne according redefine karta hai.

Rules

Same method name
Same parameters
Same return type (ya covariant)
IS-A relationship hona chahiye
private, static, final methods override nahi hote

java exampleWoHoTech

class Animal {
    String name;
    void makeSound() { System.out.println("Koi awaaz..."); }
    void eat() { System.out.println("Kha raha hai"); }
}

class Dog extends Animal {
    @Override
    void makeSound() { System.out.println("Bhow Bhow!"); }
    // eat() override nahi kiya — parent wala use hoga
}

class Cat extends Animal {
    @Override
    void makeSound() { System.out.println("Meow!"); }
}

@Override Annotation

Optional hai but strongly recommended
Compiler galtiyan pakad leta hai
Readability badhti hai

Covariant Return Type

Child class override mein narrower return type return kar sakta hai.

java exampleWoHoTech

class Parent {
    Parent getInstance() { return new Parent(); }
}
class Child extends Parent {
    @Override
    Child getInstance() { return new Child(); } // OK — covariant
}

super se Parent Method Call

java exampleWoHoTech

class Child extends Parent {
    @Override
    void display() {
        super.display(); // Parent method bhi chalao
        System.out.println("Child display");
    }
}

Overloading vs Overriding

	Overloading	Overriding
--	--	--
Class	Same class	Different classes
Parameters	Different	Same
Resolved at	Compile time	Runtime
Inheritance	Not required	Required

Method Overriding

Rules

@Override Annotation

Covariant Return Type

super se Parent Method Call

Overloading vs Overriding

Continue learning this concept

Method Overriding

Rules

@Override Annotation

Covariant Return Type

super se Parent Method Call

Overloading vs Overriding

Continue learning this concept