What are some examples of function overloading in different programming languages?

What are some examples of function overloading in different programming languages?

Function overloading allows multiple functions with the same name but different parameters. For example, in C++, you can have:

1. void display(int a);
2. void display(double b);
3. void display(string c);

Each function performs a different task based on the parameter type.

Can you give me an example in Java?

Sure! In Java, you can overload methods like this:

class Example {
    void show(int a) {
        System.out.println("Integer: " + a);
    }
    void show(String b) {
        System.out.println("String: " + b);
    }
}

Here, the show method is overloaded with different parameter types.

What about Python? Does it support function overloading?

Python does not support function overloading in the traditional sense, but you can achieve similar behavior using default arguments or variable-length arguments. For example:

def display(a, b=None):
    if b is not None:
        print(f'Both: {a}, {b}')
    else:
        print(f'One: {a}')

This function can handle one or two arguments.

Are there any languages that don't support function overloading?

Yes, some languages like Go and JavaScript do not support function overloading directly. In JavaScript, you typically use a single function and check the types of arguments within it.