Quizzes – Java Primitive Data Types

Written By Sar Maroof - Sarmaroof.com

The following Java exercise(s) are designed to help you understand the article to which it belongs. If the following quizzes are too hard, then I recommend to read the article first, which offers a theoretical explanation including examples and exercises.

Java Primitive Data Types: Article Quizzes

Quiz 1: The values of the uninitialized primitive data types in Java.

What happens when the following program is compiled and run?

public class Employee {

	// Primitive data types
	double salary;
	int age;
	boolean isPaid;
	char gender = 'm'; // m = male, f = female

	public static void main(String[] args){
		Employee emp = new Employee();
		System.out.print(" " + emp.salary + ",");
		System.out.print(" " + emp.age + ",");
		System.out.print(" " + emp.isPaid + ",");
		System.out.print(" " + emp.gender);
	}
}

Quiz 2: An example of Java primitive data types.

What happens when the following program is compiled and run?


public class MyData {

	String name;
	int i;
	int i2 = 4;
	int i3 = i2 / i;

	public static void main(String[] args){
		MyData md = new MyData();
		System.out.print(md.i3);
	}
}

Please, leave your questions, feedback and suggestions in the comments below! If you need more explanation by any of the answers, just let me know to update it for you!

Java Primitive Data Types: Article Quizzes

Megisoft.com offers a practical method to learn and improve your Java skills. It avoids unnecessary long boring theoretical explanations, but it uses many exercises and quizzes. The author of Megisoft is Sar Maroof who has more than a decade of experience with web development mainly with Java, MySql, HTML and more..