The Power of Generics in Java: Type Safety and Code Reusability

Java Generics provide type safety and reusability by allowing you to define classes, methods, and interfaces with placeholder types. This avoids casting and helps catch errors at compile time. Generics make your code flexible and reusable without sacrificing type safety.

Here’s an example of a generic method:

public class GenericExample {
    public static  void printArray(T[] array) {
        for (T element : array) {
            System.out.println(element);
        }
    }

    public static void main(String[] args) {
        Integer[] intArray = {1, 2, 3};
        printArray(intArray);
    }
}
            

In this example, the method `printArray` can handle arrays of any type. Generics improve code reusability and ensure that type errors are caught during compilation, which boosts code quality.