What are default constructors in Java?

What are default constructors in Java?

Default constructors are constructors that do not take any parameters. They are automatically provided by Java if no other constructors are defined.

Can you give me an example of a default constructor?

Sure! Here's a simple example:

class Dog {
    Dog() { // Default constructor
        System.out.println("A dog is created!");
    }
}

In this case, when you create a new Dog object, the default constructor is called.

What happens if I define another constructor?

If you define any constructor with parameters, Java will not provide a default constructor automatically. You would need to define it explicitly if you still want one.

Can default constructors be overloaded?

Yes, you can overload constructors in Java. You can have multiple constructors with different parameters, including a default constructor.