CS3391 Object Oriented Programming Previous Year Question Papers - Anna University

UNIT I: INTRODUCTION TO OOP AND JAVA

Part A (2 Marks)

• Define JVM and its importance in platform independence.
• List the core OOP concepts (Abstraction, Encapsulation, Inheritance, Polymorphism).
• What are Java Buzzwords?
• Difference between static and instance variables.

Part B (13/15 Marks)

• Explain the internal architecture of JVM with a neat sketch.
• Discuss the various access specifiers in Java with examples.
• Explain different types of constructors and constructor overloading.
• Write a Java program to perform matrix multiplication using 2D arrays.

UNIT II: INHERITANCE, PACKAGES, AND INTERFACES

Part A (2 Marks)

• What is the use of super and final keywords?
• Differentiate between Method Overloading and Method Overriding.
• Define an Interface and its purpose.
• What is Dynamic Method Dispatch?

Part B (13/15 Marks)

• Explain the different types of inheritance supported by Java with examples.
• Discuss the concept of Abstract Classes and methods with a sample program.
• Explain how to create, import, and implement Packages in Java.
• Write a program to illustrate the use of Interfaces for multiple inheritance.

UNIT III: EXCEPTION HANDLING AND MULTITHREADING

Part A (2 Marks)

• Define Exception Hierarchy in Java.
• Differentiate between throw and throws keywords.
• What is the purpose of the finally block?
• State the thread priorities available in Java.

Part B (13/15 Marks)

• Explain the Thread Life Cycle with a neat diagram.
• Describe the mechanism of Exception Handling using try-catch-finally.
• Discuss Thread Synchronization and its importance.
• Explain Inter-thread Communication using wait(), notify(), and notifyAll().

UNIT IV: I/O, GENERICS, AND STRING HANDLING

Part A (2 Marks)

• Differentiate between Byte Stream and Character Stream.
• What are Bounded Types in Generics?
• Compare String and StringBuffer.
• List any four methods of the String class.

Part B (13/15 Marks)

• Explain Generic Classes and Methods with examples.
• Write a program for file handling using streams.
• Discuss StringBuffer methods for string manipulation.
• Explain limitations of Generics.

UNIT V: JAVAFX EVENT HANDLING, CONTROLS, AND COMPONENTS

Part A (2 Marks)

• Difference between Swing and AWT (or JavaFX).
• What is an Event Listener?
• Define Layout Manager.
• What are Stage and Scene in JavaFX?

Part B (13/15 Marks)

• Explain JavaFX Event Handling with button click example.
• Discuss JavaFX Layouts (HBox, VBox, BorderPane, GridPane).
• Write a GUI program using Checkboxes, RadioButtons, ComboBoxes.
• Explain handling of Mouse and Key events in JavaFX.

Most Repeated / High-Weight Questions

Constructor overloading, method overriding vs overloading, exception handling with try-catch-finally, thread synchronization, inheritance types, generic classes and bounded types, JavaFX layouts and event handling.