Method overloading in Java

 

🔷 Method Overloading

✅ What is Method Overloading?

Method Overloading is a feature in Java where a class can have multiple methods with the same name but different parameter lists (type, number, or order).

It is a form of compile-time polymorphism.

---

🧠 Why Use Method Overloading?

• To perform similar operations in different ways.

• Improves code readability and reusability.

---

✅ Rules for Overloading

• Methods must have different parameter lists.

• Can have different return types, but return type alone is not enough to overload a method.

---

🧪 Example:

class Calculator {
    int add(int a, int b) {
        return a + b;
    }

    double add(double a, double b) {
        return a + b;
    }

    int add(int a, int b, int c) {
        return a + b + c;
    }
}

public class Main {
    public static void main(String[] args) {
        Calculator c = new Calculator();
        System.out.println(c.add(2, 3));         // 5
        System.out.println(c.add(2.5, 3.5));     // 6.0
        System.out.println(c.add(1, 2, 3));      // 6
    }
}