Java MCQ: Which of the following is not a primitive data type in Java?
Answer:
Explanation:
In Java, void is not a primitive data type; it is a keyword used to specify that a method does not return a value. Primitive data types in Java are predefined by the language and represent simple values such as numbers, characters, and boolean values. These types include byte, short, int, long, float, double, char, and boolean. Each of these types is used to store specific types of data, such as whole numbers or floating-point numbers.
The void keyword, however, is used in method declarations to indicate that the method does not return any data. For instance, if you have a method that simply performs an action but does not produce any result that needs to be returned to the caller, you would declare it with a void return type:
public void printMessage() {
System.out.println("Hello, World!");
}
In this example, printMessage() is a method that prints a message to the console but does not return any value, hence it is declared with the void return type. Understanding the difference between primitive data types and other keywords like void is fundamental to mastering Java programming, as it directly impacts how you design methods and handle data within your applications.
It’s also important to note that while void indicates the absence of a return type, it is not a data type in itself. It cannot be used to declare variables or store values, distinguishing it from the actual primitive data types that can be used to declare variables and hold specific types of data.
Reference links:
https://www.javaguides.net/p/java-tutorial-learn-java-programming.html