JAVA
Java Mastery Quiz
Test your knowledge of Java with our interactive quiz designed for programmers of all levels! This quiz covers a wide range of topics, ensuring a comprehensive assessment of your Java skills.
- 10 engaging multiple-choice questions
- Instant feedback on your choices
- Perfect for students and professionals alike!
1. Which class cannot be a subclass in java?
A. Abstract class
B. Parent class
C. Final class
D. None of the above
2. A Suspended thread can be revived by using?
A. start() method
B. Suspend() method
C. resume() method
D. yield() method
3. Which collection class associates values with keys, and orders the keys according to their natural order?
A. java.util.HashSet
B. java.util.LinkedList
C. java.util.TreeMap
D. java.util.SortedSet
4. Which methods are utilized to control the access to an object in multi-threaded programming?
A. Asynchronized methods
B. Synchronized methods
C. Serialized methods
D. None of above
5. In Runnable, many threads share the same object instance. True or False?
A. True
B. False
6. Java beans have no types. True or False?
A. True
B. False
7. Which of these operators is used to allocate memory to array variable in Java?
A. malloc
B. New malloc
C. new
D. calloc
8. Which statement is static and synchronized in JDBC API?
A. executeQuery()
B. executeUpdate()
C. getConnection()
D. prepareCall()
9. All raw data types should be read and uploaded to the database as an array of?
A. int
B. char
C. boolean
D. byte
10. The class java.sql.Timestamp is associated with?
A. java.util.Time
B. java.sql.Time
C. java.util.Date
D. None of the above
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