In this article, we will provide you the PDF of 50+ MCQs with Answers on Advance Java. This MCQ will help you score good marks in the final exam. These all Advance Java MCQs are prepared by experts at heavycoding.com.
Multiple Choice Questions on Advance Java with Answers
Advanced Java refers to advanced concepts and techniques used in Java programming beyond the basics. It includes topics such as server-side programming, web development, enterprise application development, and distributed computing.
Looking for comprehensive study materials on Python, Data Structures and Algorithms (DSA), Object-Oriented Programming (OOPs), Java, Software Testing, and more?
What is the full form of JDBC?
A. Java Database Connectivity
B. Java Database Collection
C. Java Data Collection
D. Java Database Component
Answer: A
What is the purpose of a PreparedStatement in JDBC?
A. To execute a parameterized SQL query
B. To execute a stored procedure
C. To execute a batch of SQL statements
D. To execute a dynamic SQL query
Answer: A
Which interface in Java is used to define the behavior of servlets?
A. ServletContext
B. ServletConfig
C. Servlet
D. HttpServlet
Answer: C
Which HTTP method is used to retrieve data from a web server?
A. GET
B. POST
C. PUT
D. DELETE
Answer: A
What is the purpose of JSP?
A. To create dynamic web pages
B. To create static web pages
C. To create server-side applications
D. To create client-side applications
Answer: A
What is the purpose of a JAR file?
A. To package Java class files and associated metadata into a single file
B. To package HTML, CSS, and JavaScript files into a single file
C. To package images and other media files into a single file
D. To package database files into a single file
Answer: A
Which interface is used to handle events in Java?
A. ActionListener
B. EventListener
C. MouseListener
D. KeyListener
Answer: B
What is the purpose of the finally block in a try-catch-finally statement?
A. To execute code that must be executed regardless of whether an exception occurs
B. To execute code that must be executed if an exception occurs
C. To execute code that must be executed if no exception occurs
D. To execute code that must be executed before any other code
Answer: A
What is the difference between == and equals() method in Java?
A. == compares the object references, while equals() compares the object content
B. equals() compares the object references, while == compares the object content
C. Both compare the object references
D. Both compare the object content
Answer: A
What is the purpose of the synchronized keyword in Java?
A. To prevent multiple threads from accessing the same code block simultaneously
B. To allow multiple threads to access the same code block simultaneously
C. To prevent multiple threads from accessing the same variable simultaneously
D. To allow multiple threads to access the same variable simultaneously
Answer: A
Which keyword is used to create an interface in Java?
A. class
B. interface
C. abstract
D. implements
Answer: B
What is the purpose of the super keyword in Java?
A. To refer to the superclass of a class
B. To refer to the current instance of a class
C. To refer to a static method of a class
D. To refer to a static variable of a class
Answer: A
What is the purpose of the static keyword in Java?
A. To create a class-level variable or method
B. To create an instance-level variable or method
C. To prevent a variable or method from being modified
D. To allow a variable or method to be modified
Answer: A
Which keyword is used to declare a method that does not return a value?
A. void
B. int
C. boolean
D. double
Answer: A
Which data structure in Java is used to implement a stack?
A. LinkedList
B. ArrayList
C. Stack
D. HashSet
Answer: C
Which data structure in Java is used to implement a binary search tree?
A. LinkedList
B. ArrayList
C. TreeMap
D. HashSet
Answer: C
What is the difference between an abstract class and an interface in Java?
A. An abstract class can have method implementations while an interface can only have method signatures.
B. An interface can have method implementations while an abstract class can only have method signatures.
C. Both abstract classes and interfaces can have method implementations.
D. An abstract class is a blueprint for creating objects while an interface is not.
Answer: A
What is the purpose of the finalize() method in Java?
A. To free system resources before an object is garbage collected
B. To free system resources after an object is garbage collected
C. To create a new object before an object is garbage collected
D. To create a new object after an object is garbage collected
Answer: A
Which class in Java is used to create and manage threads?
A. Thread
B. Runnable
C. Executor
D. Timer
Answer: A
Which exception is thrown when a method is called with illegal arguments?
A. IllegalAccessException
B. IllegalArgumentException
C. InvocationTargetException
D. ClassNotFoundException
Answer: B
Which exception is thrown when a method or class is not found?
A. IllegalAccessException
B. IllegalArgumentException
C. InvocationTargetException
D. ClassNotFoundException
Answer: D
What is the purpose of the assert keyword in Java?
A. To test whether a condition is true and throw an exception if it is false
B. To test whether a condition is false and throw an exception if it is true
C. To test whether a variable is null and throw an exception if it is not
D. To test whether a variable is not null and throw an exception if it is
Answer: A
What is the purpose of the getClass() method in Java?
A. To return the runtime class of an object
B. To return the superclass of a class
C. To return the interface of a class
D. To return the package of a class
Answer: A
What is the purpose of the clone() method in Java?
A. To create a copy of an object
B. To create a new instance of a class
C. To create a new instance of an interface
D. To create a new instance of an abstract class
Answer: A
Which method is used to read data from a file in Java?
A. read()
B. write()
C. readLine()
D. writeLine()
Answer: A
Which class is used to create a server socket in Java?
A. Socket
B. ServerSocket
C. DatagramSocket
D. MulticastSocket
Answer: B
Which class in Java is used to handle date and time?
A. Date
B. Time
C. Calendar
D. Timestamp
Answer: C
What is the purpose of the java.lang package in Java?
A. To provide fundamental classes and interfaces
B. To provide network-related classes and interfaces
C. To provide GUI-related classes and interfaces
D. To provide database-related classes and interfaces
Answer: A
Which keyword is used to prevent a method or variable from being inherited in Java?
A. final
B. static
C. private
D. protected
Answer: A
![Read more about the article What public static void main(String [] args){} means?](https://heavycoding.com/wp-content/uploads/2024/01/Hoghest-Paying-Companies-in-Banglore-2-300x169.png)