*Intermediate Java Interview Questions with Answers– Part 3* *11. What is method overloading in Java?* It means having multiple methods with the same name but different parameters (type or number) in the same class. *Example:* void print(int a) { System.out.println(a); } void print(String s) { System.out.println(s); } The compiler picks the method based on the arguments at compile time. *12. What is method overriding?* It means redefining a method from a parent class in a child class with the same signature. *Example:* class Animal { void sound() { System.out.println("Some sound"); } } class Dog extends Animal { void sound() { System.out.println("Bark"); } } This enables runtime polymorphism. *13. Can we override a static method in Java?* No. Static methods belong to the class, not the object. If you declare a static method in both parent and child, it’s called method hiding, not overriding. *14. What are wrapper classes in Java?* They are used to convert primitive data types into objects. *Example:* int a = 10; Integer obj = Integer.valueOf(a); // Boxing int b = obj.intValue(); // Unboxing Common wrapper classes: Integer, Double, Float, Character, etc. *15. What is autoboxing and unboxing?* - Autoboxing: Automatic conversion of primitive → wrapper - Unboxing: Wrapper → primitive *Example:* Integer x = 10; // autoboxing int y = x; // unboxing *React ❤️ for more*