What are some examples of constructor overloading in programming?

What are some examples of constructor overloading in programming?

Constructor overloading allows a class to have multiple constructors with different parameters. For example, in Java, you might have a class Point with two constructors: one that takes no arguments and initializes the point at the origin, and another that takes two arguments to set the x and y coordinates.

Can you show me the code for that?

Sure! Here's a simple example in Java:

class Point {
    int x, y;

    // Constructor with no parameters
    Point() {
        this.x = 0;
        this.y = 0;
    }

    // Constructor with parameters
    Point(int x, int y) {
        this.x = x;
        this.y = y;
    }
}

This class has two constructors, allowing you to create a Point object in different ways.

What happens if I try to call a constructor with the wrong parameters?

If you try to call a constructor with the wrong parameters, you'll get a compile-time error in statically typed languages like Java. The compiler checks the number and types of arguments you provide against the defined constructors.

Are there any limitations to constructor overloading?

Yes, one limitation is that constructors must have different parameter lists. You cannot overload constructors based solely on return types, and if you don't provide any constructors, the compiler will generate a default one for you.