How do I use generics in methods?

How do I use generics in methods?

Generics allow you to create methods that can operate on different data types while providing type safety. Would you like an example?

Yes, please provide an example of a generic method.

Sure! Here's a simple example in Java:

public <T> void printArray(T[] array) {
    for (T element : array) {
        System.out.println(element);
    }
}

This method can print arrays of any type.

How does the type parameter <T> work in that example?

The type parameter <T> acts as a placeholder for the actual type that will be passed when the method is called. It ensures type safety.

Can I use multiple type parameters in a generic method?

Yes, you can! You can define multiple type parameters like this:

public <T, U> void printPair(T first, U second) {
    System.out.println(first + " and " + second);
}