OOP JAVA Unit 1 Handwritten Notes AKTU (BCS403)

AKTU · BTECH · Semester 4 · Object Oriented Programming with Java · Unit 1 · Handwritten Notes

AKTU Object Oriented Programming with Java (BCS403) Unit 1 handwritten notes for B.Tech Semester 4 – Introduction, Programming Structures, OOP and Packages…

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Unit 1: Introduction, Programming Structures, OOP and Packages – AKTU syllabus topics

  • Introduction to Java: JVM JRE Java Environment, Java Source File Structure
  • Java Programming Fundamentals: Data Types Variables Operators, Control Flow Statements, Arrays and Strings
  • Classes and Objects: Defining Classes Constructors Methods, Access Specifiers Static Final Members
  • Object Oriented Programming Concepts: Inheritance Super Sub Class, Polymorphism Overriding Overloading, Abstraction and Encapsulation, Interfaces and Abstract Class
  • Packages in Java: Defining and Importing Packages, JAR Files CLASSPATH Setting

Most asked AKTU PYQ questions from Unit 1

  1. Q3b. Explain the concept of Java Virtual Machine and Java Runtime Environment. (7 marks, 2024-25)
  2. Q2a. Discuss the different data types and control structures in Java with examples. (7 marks, 2024-25)
  3. Q3a. Write a Java program to take user input and display the reverse of a string. (7 marks, 2024-25)
  4. Q2a. Explain abstraction and abstract classes in Java. Describe abstract method. With a suitable example demonstrate the application of abstract classes. (7 marks, 2023-24)
  5. Q3a. Illustrate polymorphism and its types in Java. Differentiate between run-time and compile-time polymorphism. Write super class Shape with method displayArea() and sub class Rectangle. Demonstrate method overriding with this example. (7 marks, 2023-24)
  6. Q3b. Illustrate Constructors and their applications in Java. Describe the types of constructors used in Java. Write a class with name Student with attributes roll_number, name, branch and email. Write all argument constructor for class Student and create two objects with this constructor. (7 marks, 2023-24)
  7. Q1a. Why is Java platform-independent? (2 marks, 2024-25)
  8. Q1b. What is the role of a constructor in a Java class? (2 marks, 2024-25)
  9. Q1a. Describe JVM and byte code in Java Architecture. (2 marks, 2023-24)
  10. Q1b. Define the concept of classes and object in Java with a suitable example. (2 marks, 2023-24)

AKTU paper codes: BCS403

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