Java Beginner Quiz
Master Java basics including syntax, data types, OOP concepts, and core APIs
Start the quizSample questions from this quiz
A preview of the style and depth. Try each one, then reveal the answer — or skip straight to the timed quiz.
1. What is the correct way to declare a main method in Java?
- static public main(String[] args)
- void main(String[] args)
- public void main(String args)
- public static void main(String[] args)
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Answer: public static void main(String[] args). The main method must be public, static, void, and accept a String array as parameter. This is the entry point for Java applications.
2. Which keyword is used to create a constant in Java?
- final
- const
- constant
- static
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Answer: final. The final keyword is used to declare constants in Java. Once assigned, a final variable cannot be reassigned.
3. What is the default value of a boolean variable in Java?
- 0
- null
- false
- true
Show answer
Answer: false. Instance variables of boolean type are initialized to false by default if not explicitly assigned a value.
Frequently asked questions
How many questions are in this Java quiz?+
30 questions, with a 45-minute time limit. Every question includes a written explanation of the correct answer.
Is this Java quiz free?+
Yes. Every quiz on CodexQuizz is free and needs no account. You only enter a name if you choose to post your score to the leaderboard.
What level is the beginner quiz aimed at?+
Master Java basics including syntax, data types, OOP concepts, and core APIs
Can I use this to prepare for a Java interview?+
Yes. The questions cover the topics that come up in Java technical screens, and the explanations are written so that a wrong answer still teaches you the underlying concept.
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