IGNOU PGDCA MCS 206 Object Oriented Programming using Java Previous Years Unsolved Papers E-Book

Manish Soni

• Herausgeber: Poorav Publications
• Kategorie: Wissenschaft und neue Technologien
• Serie: IGNOU PGDCA Unsolved Paper Books Series
• Sprache: Englisch

Seitenzahl: 53

Veröffentlichungsjahr: 2024

Beschreibung

Welcome to the comprehensive collection of solved papers for the Post Graduate Diploma in Computer Applications (PGDCA) program offered by the Indira Gandhi National Open University (IGNOU). This book is meticulously crafted to assist students in their preparation for the Object Oriented Programming using Java examination, a fundamental and integral part of the PGDCA curriculum. As technology continues to evolve, Java remains a cornerstone of computer science, playing a pivotal role in software development across diverse platforms. Recognizing the significance of a strong foundation in Java programming, this compilation brings together years of previous exam papers with detailed solutions, providing a valuable resource for students to enhance their understanding and excel in their academic pursuits.
Each solved paper within this book is designed to serve as more than just an answer key. Beyond the correct responses, you will find thorough explanations, strategic insights, and helpful tips aimed at aiding your comprehension of Java concepts. Whether you are a novice programmer or a seasoned learner, this collection offers a structured approach to mastering Object Oriented Programming using Java, covering topics ranging from basic syntax to advanced features. The inclusion of previous years' papers ensures that you are well-acquainted with the examination patterns and can approach your assessments with confidence.
As you embark on your journey through the PGDCA program, we hope this book proves to be a valuable companion, aiding you in your quest for proficiency in Java. It is our sincere desire that this resource contributes significantly to your academic success, fostering a deeper appreciation for Java programming and its applications in the dynamic world of computer science. Best of luck in your studies and may this book serve as a stepping stone towards a rewarding and fulfilling career in the realm of computer applications.

Leseprobe

IGNOU PGDCA MCS 206 Object Oriented Programming using Java Previous Years Unsolved Papers

Manish Soni

Preface

Welcome to the comprehensive collection of solved papers for the Post Graduate Diploma in Computer Applications (PGDCA) program offered by the Indira Gandhi National Open University (IGNOU). This book is meticulously crafted to assist students in their preparation for the Object Oriented Programming using Java examination, a fundamental and integral part of the PGDCA curriculum. As technology continues to evolve, Java remains a cornerstone of computer science, playing a pivotal role in software development across diverse platforms. Recognizing the significance of a strong foundation in Java programming, this compilation brings together years of previous exam papers with detailed solutions, providing a valuable resource for students to enhance their understanding and excel in their academic pursuits.

Each solved paper within this book is designed to serve as more than just an answer key. Beyond the correct responses, you will find thorough explanations, strategic insights, and helpful tips aimed at aiding your comprehension of Java concepts. Whether you are a novice programmer or a seasoned learner, this collection offers a structured approach to mastering Object Oriented Programming using Java, covering topics ranging from basic syntax to advanced features. The inclusion of previous years' papers ensures that you are well-acquainted with the examination patterns and can approach your assessments with confidence.

As you embark on your journey through the PGDCA program, we hope this book proves to be a valuable companion, aiding you in your quest for proficiency in Java. It is our sincere desire that this resource contributes significantly to your academic success, fostering a deeper appreciation for Java programming and its applications in the dynamic world of computer science. Best of luck in your studies and may this book serve as a stepping stone towards a rewarding and fulfilling career in the realm of computer applications.

Table of Contents

Preface

Chapter 1: Term-End Examination, December, 2021

Chapter 2: Term-End Examination, June, 2022

Chapter 3: Term-End Examination, December, 2022

Chapter 4: Mostly Asked Important Questions – Part A

Chapter 5: Mostly Asked Important Questions – Part B

Chapter 6: Mostly Asked Important Questions – Part C

Chapter 7: Mostly Asked Important Questions – Part D

Chapter 9: Mostly Asked Important Questions – Part E

Chapter 10: Mostly Asked Important Questions – Part F

Chapter 11: Mostly Asked Important Questions – Part G

Chapter 12: Mostly Asked Important Questions – Part H

Chapter 13: Mostly Asked Important Questions – Part I

Chapter 14: Mostly Asked Important Questions – Part J

Chapter 15: Mostly Asked Important Questions – Part K

Chapter 16: Mostly Asked Important Questions – Part L

Chapter 17: Mostly Asked Important Questions – Part M

Chapter 18: Mostly Asked Important Questions – Part N

Chapter 19: Mostly Asked Important Questions – Part O

Chapter 20: Mostly Asked Important Questions – Part P

Post Graduate Diploma in Computer Application (PGDCA)

Chapter 1: Term-End Examination, December, 2021

MCS-206: Object Oriented Programming Using Java

1. (a) What is Object Oriented Programming? What is an object? How is it created in Java? Explain with the help of an example.

(b) Explain use of “super” keyword in Java programming with the help of an example.

c) Write a Java program to demonstrate how a thread is created in Java. Also set the priority of created thread to 8.

2. (a) What is an Abstract Class? Explain advantages of abstract class with the help of a program.

(b) Explain the use of the following classes in Java programming with the help of example :

(i) Date

(ii) List

3. (a) What is Exception? Why proper exception handling is necessary in Java Programming? Write a program to demonstrate use of multiple “catch” clauses in exception handling.

(b) What is “File” class in Java? List any two methods of “file” class. Also explain use of these methods with the help of a program.

4. (a) What is Polymorphism? What are the different types of polymorphism? Explain how polymorphism helps in code reuse in Java programming with the help of a program.

(b) Write a Java program which takes three numbers as input and displays the largest among these.

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(c) Explain why main method in Java is always static

Ans- In Java, the main method is the entry point of a Java program. It serves as the starting point for the execution of the

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(d) Differentiate between String and String- Buffer classes in Java.

(e) What is Package in Java? Explain, with example, how a user defined package is created in Java

(f) What is JDBC? Explain use of Driver- Manager class in the context of JDBC.

(g) What is Multithreading? Explain Java thread model with the help of a diagram.

5. (a) What is JavaFX? Explain the features of JavaFX.

(b) What is JDBC batch processing? Explain with the help of a program.

Post Graduate Diploma in Computer Applications (PGDCA)

Chapter 2: Term-End Examination, June, 2022

MCS-206: Object Oriented Programming Using Java

1. (a) What are access specifiers? Explain the difference between public and private access specifiers in Java, with the help of an example.

(b) Write a Java program which takes a string as input and displays its length.

(c) Write a Java program to find the sum of two matrices of dimension 3 3.

(d) What is a package in Java? Explain accessibility rules for packages.

(e) Explain the use of Map class in Java, with the help of a program.

(f) What is object serialization? Explain the working and use of object serialization.

(g) Explain event handling in JavaFX, with the help of a program.

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2. (a) What is inheritance? Explain the advantages of inheritance. Explain order of calling of constructors in the case of multilevel inheritance, with the help of a program.

3. (a) What is multithreading? Explain how thread synchronization is achieved in Java, with the help of a

program.

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(b) What is polymorphism? Explain the different types of polymorphism that are supported by Java, with the help of examples.

4. (a) Explain how Java provides platform independence, with the help of a diagram.

(b) Explain the use of ‘‘final’’ and ‘‘super’’ keywords of Java.

(c)