Java Quiz

Take our Java Quiz Test to evaluate your programming skills. Explore a variety of Java questions and find answers to enhance your proficiency in Java programming.

Topics covered in this Java Quiz

• Introduction to Java
• Java Syntax and Language Basics
• Variables and Data Types in Java
• Control Flow in Java
• Methods and Functions in Java
• Java Object-Oriented Programming
• Exception Handling in Java
• Java Collections and Generics
• File Handling in Java
• Java Threads and Concurrency
• Java Networking and Socket Programming
• Java Database Connectivity (JDBC)
• Java GUI Programming (Swing, JavaFX)
• Java Web Development (Servlets, JSP)
• Java Spring Framework
• Java Hibernate ORM
• Java Microservices with Spring Boot
• Java Best Practices and Design Patterns
• Java Testing and JUnit
• Java Performance Optimization

Few Questions in Java Quiz

• What is Java?
• What is the output of: System.out.println(1 + 2 + "3");
• Which of the following is a valid declaration of a char array?
• Which interface does java.util.Hashtable implement?
• In Java, which keyword is used to inherit a class?
• Which of these is used to handle exceptions in Java?
• What is the output of 'System.out.println(2 + 2 + " = 4");'?
• Which of these is a correct way to declare a multi-dimensional array in Java?
• Which one is a valid declaration of a boolean?
• In Java, which of these methods is defined in Object class?
• In Java, which of these methods is used to start a thread?