Q 24 - Constructor Overload

[AmjustGettingStarted]

Can a constructor be overloaded ⁉️🤡

[HARSHITH-MV]

🤓 Yes, a constructor can be overloaded in Java.

🔁 Constructor Overloading in Java

Constructor overloading means defining multiple constructors in the same class, each with a different parameter list.

✅ Why Overload Constructors?

• To allow different ways of initializing an object.
• To provide flexibility based on available data.

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🧪 Example

class Book {
    String title;
    int pages;

    // Default constructor
    Book() {
        title = "Unknown";
        pages = 0;
    }

    // Constructor with one parameter
    Book(String t) {
        title = t;
        pages = 100;
    }

    // Constructor with two parameters
    Book(String t, int p) {
        title = t;
        pages = p;
    }
}

🧠 How It Works

• When you create an object like new Book(), it calls the default constructor.
• new Book("Java") calls the one-parameter constructor.
• new Book("Java", 500) calls the two-parameter constructor.

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⚠️ Rules to Remember

• Constructors must differ in number or type of parameters.
• You cannot overload constructors by changing only the return type (constructors don’t have one!).

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