nptel week 4 assignment answers programming in java

Programming in Java Nptel Week 4 Assignment Answers

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Programming in Java Nptel Week 4 Assignment Answers (July-Dec 2024)

1. Which of these access specifiers must be used for main() method? a) private b) public c) protected d) default

Answer:b) public

2. What is the output of the below Java Code Snippet with protected access modifier?

a) 100 marks b) No output c) Compiler error d) None of the above

Answer:a) 100 marks

3. What is the process by which we can control what parts of a program can access the members of a class? a) Polymorphism b) Augmentation c) Encapsulation d) Recursion

Answer : c) Encapsulation

4. Consider the 2 programs:

a) Both pre-increment and post-increment operators become pre-increment during print. b) Both pre-increment and post-increment operators become post-increment during print. c) Both Main1 and Main2 classes give the same output. d) Pre-increment and post-increment operators don’t work during print.

Answer: c) Both Main1 and Main2 classes give the same output.

5. Which is the least restrictive access modifier in Java? a) public b) private c) protected d) default

Answer: a) public

6. Choose the correct syntax of a Java Package below. a) package PACKAGE_NAME; b) package PACKAGE_NAME. ;

c) pkg PACKAGE_NAME;

d) pkg PACKAGE_NAME. ;

Answer: a) package PACKAGE_NAME;

7. What is the default package in Java? a) It is a package that contains all built-in classes. b) It is a package that needs to be defined as default. c) It is a package that does not have a name. d) It is a package used for importing external libraries.

Answer: c) It is a package that does not have a name.

8. A package is a collection of: a) classes b) interfaces c) editing tools d) classes and interfaces

Answer: d) classes and interfaces

9. In Java, can a subclass in a different package access a superclass’s protected method? a) Yes, without any restrictions. b) Yes, but only if they are in the same package. c) No, protected methods are not accessible by subclasses. d) No, protected methods are only accessible within the same class.

Answer: a) Yes, without any restrictions.

10. Consider the program given below. What will be the output if the program is executed?

a) It will give compile-time error b) It will give run-time error c) 1.0 d) 3.14

Answer: c) 1.0

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Programming in Java Nptel Week 4 Assignment Answers (Jan-Apr 2024)

Course name: Programming In Java

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Q1. Which is the keyword used to specify the default access modifier in java? a. default b. DEFAULT c. package d. “There is no keyword”

Answer: d. “There is no keyword”

Q2. What is the output of the Java program with access modifiers? a. FOUR b. Runtime Error c. null d. Compiler Error

Answer: d. Compiler Error

Q3. What is the output of the below Java Code Snippet with access modifiers? a. Weeks = 0 b. Weeks = 12 c. No Error, blank output d. Compiler error

Answer: b. Weeks = 12

These are Programming in Java Nptel Week 4 Assignment Answers

Q4. Which of the following is the correct representation of access modifiers in order of increasing visibility? a. private < default < protected < public b. private < protected < default < public c. public < protected < default < private d. protected < default < private < public

Answer: a. private < default < protected < public

Q5. Which of the following package stores all the standard java classes? a. java.util b. java.lang c. java.java d. java.packages

Answer: b. java.lang

Q6. Which of the following is/are true about packages in Java? 1. Every class is part of some package. 2. All classes in a file are part of the same package. 3. If no package is specified, the classes in the file go into a special unnamed package. 4. If no package is specified, a new package is created with folder name of class and the class is put in this package. a. Only 1, 2 and 3 b. Only 1, 2 and 4 c. Only 4 d. Only 1 and 3

Answer: a. Only 1, 2 and 3

Q7. What is the output of following Java program? a. Compiler Error b. Runtime Error c. Welcome! d. None of the above

Answer: c. Welcome!

Q8. Which of these access specifiers can be used for an interface? a. Public b. Protected c. private d. All of the mentioned

Answer: a. Public

Q9. Which of the following is the correct way of implementing an interface salary by class manager? a. class Java extends NPTEL {} b. class Java implements NPTEL {} c. class Java imports NPTEL {} d. none of the mentioned

Answer: b. class Java implements NPTEL {}

Q10. What will be the output of the following Java program? a. 0 b. 2 c. 4 d. Compiler Error

Answer: c. 4

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Programming in Java Nptel Week 4 Assignment Answers (July-Dec 2023)

Course Name: Programming In Java

Programming Assignment

Question 1 Complete the code segment to execute the following program successfully. You should import the correct package(s) and/or class(s) to complete the code.

Question 2 Complete the code segment to print the current year. Your code should compile successfully.

Question 3 The program in this assignment is attempted to print the following output: —————– OUTPUT ——————- This is large This is medium This is small This is extra-large ————————————————- However, the code is intentionally injected with some bugs. Debug the code to execute the program successfully.

Question 4 Complete the code segment to call the default method in the interface First and Second.

Question 5 Modify the code segment to print the following output. —————–OUTPUT——————- Circle: This is Shape1 Circle: This is Shape2 ————————————————-

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Programming in Java Nptel Week 4 Assignment Answers (Jan-Apr 2023 )

Course Name: Programming in Java

Q1. Which of the following is the correct statement for creating a package? a. < package name > package; b. package < package name >; c. package; d. < package name >;

Answer: b. package < package name >;

Q2. Which of the following source files cannot be included in a package? a. classes b. interfaces c. enumerations d. data

Answer: d. data

Q3. Which of the following is/are used to access a public package? a. Refer to the member by its fully qualified name b. Import the package member c. Import the member’s entire package d. Import is not mandatory

Answer: a, b, c

Q4. Which of the following statement(s) is/are false? a. Java packages are hierarchical. b. System.out.println() is a predefined java function. c. Java can have a nested class structure. d. The Java static keyword is a non-access modifier.

Answer: a. Java packages are hierarchical.

Q5. Consider the program given below. What will be the output if the above program is executed? a. It will give compile-time error b. It will give run-time error c. 1.0 d. 3.14

Answer: a. It will give compile-time error

Q6. Which of the following is the minimum requirement for executing a Java program? a. JDK b. JRE c. JDK without JRE d. JRE without JDK

Answer: b, d

Q7. Which of the following is required for developing a Java program? a. JDK b. JRE c. JDK without JRE d. JRE without JDK

Answer: a. JDK

Q8. Which of the following statement(s) is/are correct? a. Java byte code is machine dependent. b. Java byte code is generated by the compiler. c. Java byte code is generated by the interpreter. d. Java byte code is machine independent.

Q9. Which of the following is an advantage of methods? a. Code re-usability b. Platform independence. c. Fast execution of codes. d. Removes compilation error.

Answer: a. Code re-usability

Q10. Consider the following programs: Choose correct statement about the output of this code segment. a. Both pre-increment and post-increment operators becomes pre-increment during print. b. Both pre-increment and post-increment operators becomes post-increment during print. c. Both Mainl and Main2 classes give the same output. d. Pre-increment and post-increment operators don’t work during print.

Answer: c. Both Mainl and Main2 classes give the same output.

Complete the code segment to execute the following program successfully. You should import the correct package(s) and/or class(s) to complete the code.

Complete the code segment to print the current year. Your code should compile successfully.

The program in this assignment is attempted to print the following output: —————–OUTPUT——————- This is small This is medium This is large This is extra-large ————————————————- However, the code is intentionally injected with some bugs. Debug the code to execute the program successfully.

Complete the code segment to call the default method in the interface Second then First.

Modify the code segment to print the following output. —————–OUTPUT——————- Circle: This is Shape1 Circle: This is Shape2 ————————————————-

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Programming in Java Nptel Week 4 Assignment Answers (July-Dec 2022)

Course Name: Programming in Java NPTEL

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Q1. Which of these is a mechanism for naming and visibility control of a class and its content? a. Objects. b. Intertaces. c. Packages. d. Both a and b

Answer: c. Packages.

Q2. Which of the following is false statement about packages in java? a. Packages are used to organize a set of related classes and interfaces. b. Packages are used for preventing naming conflicts. c. Packages provide code reusabilty. d. Packages cannot be considered as data encapsulation.

Answer: d. Packages cannot be considered as data encapsulation.

Q3. Which of the following is/are interface(s) of java.awt package? a. CardLayout b. Checkbox c. Choice d. MeuContainer

Answer: d. MeuContainer

Q4. Which of the following statement(s) is/are false? a. The default package in the Java language is java.lang. b. String is a final class and it is present in java.lang package. c. Cloneable is a class present in java.lang package. d. Thread is a class present in java.lang package.

Answer: c. Cloneable is a class present in java.lang package.

Q5. Consider the program given below.

What will be the output if the above program is executed? a. It will give compile-time error b. It will give run-time error c. 1.0 d. 3.14

Answer: c. 1.0

Q6. Which of the following packages is used to includes utility classes like Calendar, Collections, Date? a. java.lang b. java.util c. java.net d. java.awt

Answer: b. java.util

Q7. Which of the following statement(s) is/are false? a. Comparable interface is present in java.lang package b. Iterator interface is present in java.util package. c. Compare() is a method used in Comparable interface. d. Serializable interface is present in java.io package.

Answer: c. Compare() is a method used in Comparable interface.

Q8. Image size is too small for OCR Engine 2. Please use Engine 1. a. public interface Question { void method(int value){ System.out.println(“Nptel”); } b. public interface Question { void method(int value){} c. public interface Question { } d. public interface Question { default void method(int value){ System.out.println(“Nptel”);}

Answer: b, c, d

Q9. Which of the following is false statement about interface in java? a. An interface can extend other interfaces. b. The interface body can contain abstract methods, default methods, and static methods. c. All constant values defined in an interface are implicitly public, static, and final. d. A static method in an interface are implicitly private.

Answer: d. A static method in an interface are implicitly private.

Q10. Which of these access specifier(s) can be used for an interface? a. Public b. Protected c. Private d. Both b and c

Question 3 The program in this assignment is attempted to print the following output: OUTPUT This is large This is medium This is small This is extra-large However, the code is intentionally injected with some bugs. Debug the code to execute the program successfully.

Question 4 Complete the code segment to call the default method in the interface First and Second.

Question 5 Modify the code segment to print the following output. OUTPUT Circle: This is Shape1 Circle: This is Shape2

Programming in Java | NPTEL 2022 | Week 4 Programming Assignments Solutions

This article will help you with the answers of  Programming in Java NPTEL 2022 Week 4 Programming Assignment Solutions .

Programming in Java NPTEL Week 4 Programming Assignment 1 Solutions

Complete the code segment to execute the following program successfully.  You should import the correct package(s) and/or class(s) to complete the code.

Programming Assignment 2 Solution

Complete the code segment  to print the current year . Your code should compile successfully.

Programming Assignment 3 Solution

The program in this assignment is attempted to print the following output:  —————– OUTPUT ——————- This is large This is medium This is small This is extra-large ————————————————- However, the code is intentionally injected with some bugs.  Debug the code to execute the program successfully.

Correct Code:

Week 4: Programming Assignment 4 Solution

Complete the code segment to  call the default method in the interface First and Second .

Week 4: Programming Assignment 5 Solution

Modify the code segment  to print the following output. —————– OUTPUT ——————- Circle: This is Shape1 Circle: This is Shape2 ————————————————-

The above question set contains all the correct answers. But in any case, you find any typographical, grammatical or any other error in our site then kindly  inform us . Don’t forget to provide the appropriate URL along with error description. So that we can easily correct it.

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Programming in Java NPTEL Assignment Answers of Week 4(2023)

1 ] Which of the following is the correct statement for creating a package?

a] < package name > package;

b]   package < package name >;

c] package;

d] < package name >;

2] Which of the following source files cannot be included in a package?

b] interfaces

c] enumerations

3] Which of the following is/are used to access a public package?

a] Refer to the member by its fully qualified name

b] Import the package member

c] Import the member’s entire package

d] Import is not mandatory

4] Which of the following statement(s) is/are false?

a] Java packages are hierarchical.

b] System.out.println() is a predefined java function.

c] Java can have a nested class structure.

d] The Java static keyword is a non-access modifier.

5] Consider the program given below.

a]   It will give compile-time error

b] It will give run-time error

6] Which of the following is the minimum requirement for executing a Java program?

c] JDK without JRE

d] JRE without JDK

7] Which of the following is required for developing a Java program?

8]  Which of the following statement(s) is/are correct?

a] Java byte code is machine dependent.

b] Java byte code is generated by the compiler.

c] Java byte code is generated by the interpreter.

d] Java byte code is machine independent.

9] Which of the following is an advantage of methods?

a] Code re-usability

b] Platform independence.

c] Fast execution of codes.

d]  Removes compilation error.

10] Consider the following programs:

Choose correct statement about the output of this code segment.

a]  Both pre-increment and post-increment operators becomes pre-increment during print.

b] Both pre-increment and post-increment operators becomes post-increment during print.

c] Both Main1 and Main2 classes give the same output.

d] Pre-increment and post-increment operators don’t work during print.

Week 4: Programming Assignments

1] Complete the code segment to execute the following program successfully. You should import the correct package(s) and/or class(s) to complete the code.

2] Complete the code segment to print the current year. Your code should compile successfully.

3] The program in this assignment is attempted to print the following output:

—————–OUTPUT——————- This is small This is medium This is large This is extra-large ————————————————- However, the code is intentionally injected with some bugs. Debug the code to execute the program successfully.

4] Complete the code segment to call the default method in the interface Second then First.

5] Modify the code segment to print the following output.

————–OUTPUT—————– Circle: This is Shape1 Circle: This is Shape2 —————————————–

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Welcome to the NPTEL "Programming in Java" course repository! This repository hosts a comprehensive collection of programming assignments, quizzes, and test solutions for the NPTEL "Programming in Java" course offered in the years 2024, 2022, and 2020.

iamrudhresh/NPTEL-JAVA-PROGRAMMING

Folders and files, repository files navigation, nptel "programming in java" course repository, course overview.

This repository contains a wealth of resources designed to supplement your learning journey in Java programming. Whether you're a beginner seeking to grasp the fundamentals or an experienced developer looking to enhance your skills, you'll find a variety of materials tailored to your needs.

Programming Assignments : Dive into hands-on coding exercises that reinforce key concepts covered in the course. Each assignment presents unique challenges to sharpen your Java programming skills.

Quizzes : Test your understanding of Java programming with quizzes designed to assess your knowledge and comprehension of course topics. Challenge yourself and track your progress as you advance through the course.

Test Solutions : Access solutions to course tests to compare your answers, gain insights into problem-solving strategies, and reinforce your learning. These solutions serve as valuable resources for self-assessment and improvement.

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2024 : Access the latest course materials and stay updated with the most recent advancements in Java programming.

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Learn : Analyze test solutions to gain insights into effective problem-solving techniques and improve your proficiency in Java programming.

Get Started

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NPTEL Programming in Java Week 4 Assignment Solution 2023

NPTEL Programming in Java Week 4 All Programming Assignment Solutions – Jan 2023 | Swayam. With the growth of Information and Communication Technology, there is a need to develop large and complex software.

Further, those software should be platform independent, Internet enabled, easy to modify, secure, and robust. To meet this requirement object-oriented paradigm has been developed and based on this paradigm the Java programming language emerges as the best programming environment.

Now, Java programming language is being used for mobile programming, Internet programming, and many other applications compatible to distributed systems.

This course aims to cover the essential topics of Java programming so that the participants can improve their skills to cope with the current demand of IT industries and solve many problems in their own filed of studies.

COURSE LAYOUT

• Week 1 : Overview of Object-Oriented Programming and Java
• Week 2 : Java Programming Elements
• Week 3 : Input-Output Handling in Java
• Week 4 : Encapsulation
• Week 5 : Inheritance
• Week 6 : Exception Handling
• Week 7 : Multithreaded Programming
• Week 8 : Java Applets and Servlets
• Week 9 : Java Swing and Abstract Windowing Toolkit (AWT)
• Week 10 : Networking with Java
• Week 11: Java Object Database Connectivity (ODBC)
• Week 12: Interface and Packages for Software Development

Course Name : “Programming in Java 2023”

Question : 1 Complete the code segment to execute the following program successfully.  You should import the correct package(s) and/or class(s) to complete the code.

Question : 2  Complete the code segment  to print the current year . Your code should compile successfully.

Question : 3 The program in this assignment is attempted to print the following output:

Question : 4 Complete the code segment to  call the default method in the interface Second then First.

Question : 5 Modify the code segment  to print the following output.