How do I create a generic method in Java?

How do I create a generic method in Java?

To create a generic method in Java, you need to define the method with a type parameter. For example:

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

This method can accept an array of any type.

Can you explain the type parameter in more detail?

Sure! The type parameter <T> is a placeholder for the actual type that will be passed when the method is called. It allows the method to operate on objects of various types while providing type safety.

What are some use cases for generic methods?

Generic methods are useful for creating reusable code. For instance, you can use them for sorting, searching, or processing collections of different types without duplicating code.

Are there any limitations to using generics?

Yes, there are some limitations. For example, you cannot create instances of type parameters, and you cannot use primitive types directly as type parameters. You need to use their wrapper classes instead.