Which of the following is true about generic methods in Java?

Java MCQ: Which of the following is true about generic methods in Java?

Answer:

Explanation:

Generic methods in Java are methods that are defined with a type parameter, allowing them to operate on objects of various types while maintaining type safety. The type parameter is specified at the method level, making the method more flexible and reusable across different types.

For example, consider the following generic method:

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

In this method, the type parameter T is introduced before the return type (void). This indicates that the method can work with any array type, whether it’s an array of integers, strings, or any other type. When the method is called, the specific type is passed as an argument, and the compiler ensures that the type is used consistently throughout the method.

Generic methods are highly flexible because they are not limited to a specific type. They can be called with different types of arguments, making them more versatile than non-generic methods. Additionally, generic methods can be overloaded, just like regular methods, as long as the parameter types or the number of parameters differ.

In summary, generic methods in Java provide a powerful way to create flexible and reusable code that can work with different data types while maintaining type safety and avoiding the need for explicit type casting.

Reference links:

https://www.rameshfadatare.com/learn-java-programming/
https://www.javaguides.net/p/java-tutorial-learn-java-programming.html