Java Quiz Online – Prepare Your Interview

Java is one of the most popular programming languages in use today, with applications ranging from web development to mobile app development and beyond. As such, many companies are looking for talented Java developers to join their teams.

If you’re interviewing for a Java developer position, it’s important to be prepared to showcase your knowledge and expertise in the language. One way to do that is by taking a Java quiz to test your understanding of the language’s key concepts and features. In this article, we’ll provide a set of Java quiz questions that can help you prepare for your next Java developer interview.

These questions cover a range of topics, including syntax, data types, control structures, classes, and more. By practicing these questions, you’ll be able to strengthen your understanding of Java and increase your chances of acing your next interview.

{"question":"1. What is Java?","answers":["A type of coffee","A programming language","A type of car"],"correctAnswer":1}

Explanation: Java is a high-level programming language that is used to develop applications for various platforms.

{"question":"2. Who created Java?","answers":["Bill Gates","James Gosling","Steve Jobs"],"correctAnswer":1}

Explanation: James Gosling is a Canadian computer scientist who created Java while working at Sun Microsystems.

{"question":"3. What is the difference between JDK, JRE, and JVM?","answers":["JDK is the Java Development Kit, JRE is the Java Runtime Environment, and JVM is the Java Virtual Machine.","JDK is the Java Debugger Kit, JRE is the Java Runtime Environment, and JVM is the Java Virtual Machine.","JDK is the Java Development Kit, JRE is the Java Runtime Environment, and JVM is the Java Visual Machine."],"correctAnswer":0}

Explanation: The JDK includes the JRE, which provides the runtime environment for Java applications. The JVM is the engine that runs the Java code.

{"question":"4. What is an object in Java?","answers":["A variable","A data type","An instance of a class"],"correctAnswer":2}

Explanation: In Java, an object is an instance of a class. It contains data and behavior that can be accessed and modified by invoking methods.