nptel swayam programming in java assignment answers 2023

Programming in Java | NPTEL 2023 | Week 2 quiz solutions

This set of MCQ(multiple choice questions) focuses on the  Programming in Java NPTEL 2023 Week 2 Quiz Solutions .

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

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Programming in Java NPTEL 2022 Week 2 Quiz Solutions

Q1. Consider the following code segment:

Identify the line number(s) where there is/are error(s) in the above code.

a) 1 b) 2 c) 3 d) 4 and 5

Answer: b) 2

Q2. Consider the following code segment:

Identify the line number(s) where there is error in the above code.

Answer: d) 4 and 5

Q3. Consider the following code segment:

Select the correct output description for the above code.

a) Prints first n natural numbers in a single line. b) Prints first n natural numbers, one number in a single line. c) Prints first 10 natural numbers in a single line. d) Prints first 10 natural numbers in a single line with no spaces.

Answer: c) Prints first 10 natural numbers in a single line.

Q4. Consider the following code segment:

Modify the above code such that it prints all the even numbers till 100.

a) Replace line 3 with for(int n=2; n<=100; n++) b) Replace line 3 with for(int n=1; n<=100; n+=2){ c) Replace line 4 with System.out.print(++n + ” “); d) Both option a and c

Q5. What will be the output of the above program?

a) 22221018 b) 22222018 c) 22101018 d) 22221218

Answer: b) 22222018

Q6. How to correct the above code segment?

a) Change line 4 as x = (short) (x * 5); b) Change line 4 as x = (short) x * 5; c) Change line 4 as x = (short) x * (short) 5; d) Change line 4 as (short) x = x * 5;

Q7. What is the output of the following program?

a) 210 b) 120 c) 012 d) 000

Answer: d) 000

Q8. Which of the following option is the output of the above program?

a) java b) npteljava c) nptel java d) nptel

Answer: d) nptel

Q9. What is the output of the following program?

a) 60 b) 117 c) 33 d) Compilation error

Answer: d) Compilation error

Q10. What will be the output of the program if it is executed?

a) 50 b) 10 c) Compiler error d) 5

Answer: a) 50

Programming in Java NPTEL 2023 Week 2 Quiz Solutions

Q1. Following is a program given for this question. What will be the output of the above program?

a) 22221010 b) 12222101 c) 22101010 d) 22221012

Answer: a) 22221010

Q2. When an array is passed to a method, what value does the method receive?

a) Reference of the array b) Copy of the array c) First element in the array d) Length of the array

Answer: a) Reference of the array

Q3. What will be the output of the above program?

a) 28 b) -29 c) 30 d) -31

Answer: c) 30

Q4. How many bits are needed for float and double in Java, respectively?

a) 32 and 64 b) 32 and 32 c) 64 and 64 d) 64 and 32

Answer: a) 32 and 64

Q5. Which of the following is a valid automatic type conversion in Java?

a) short to byte b) float to long c) int to short d) int to long

Answer: d) int to long

Q6. Consider the following program and identify the output.

a) 5 b) 10 c) 50 d) Compilation error

Q7. Which of the following is a valid declaration of an object of class say, Student?

a) Student obj = new Student; b) Student obj = new Student(); c) obj = new Student(); d) new Student obj;

Answer: b) Student obj = new Student();

Q8. What is the output of the following program?

a) 210 b) 120 c) 012 d) 201

Answer: c) 012

Q9. Which of the following option is the output of the above program?

Q10. What is the output of the following program?

a) 60 b) 3011 c) 33 d) Compilation error

Q1. What is the output of the following program?

a) 88 b) 8010 c) 64 d) 810

Answer: c) 64

Q2. Which of the following is generate API documentation in HTML format from Java source code?

a) javac b) javadoc c) javap d) java

Answer: b) javadoc

Q3. Following is a program given for this question.

What will be the output of the above program?

a) javanptel b) npteljava c) janjavanptel d) jannpteljava

Answer: b) npteljava

Q4. What will happen during the execution of the following code for the command line input?

Consider the following input on command line and select the options with the correct output(s).

Input: A: “jan java nptel” B: 1 2 3

a) A : jannptel javanptel nptelnptel b) A : jan java nptel jan java nptel c) B : 11 21 31 d) B : 1 2 3 1

Answer: b), c)

Q5. Which of the following is/are TRUE about print() and println() methods?

a) print() prints in a single line only and multiple lines cannot be printed in any way. b) print() prints and then appends a line break. c) println() prints in a single line only and multiple lines cannot be printed. d) println() prints and then appends a line break.

Answer: d) println() prints and then appends a line break.

Programming in Java NPTEL 2022 Week 2 quiz Solutions

Q6. What was the initial name of Java when it was first developed for embedded systems?

a) Greentalk b) Oak c) Java d) Javac

Answer: a) Greentalk

Q7. Which of the following is a valid declaration of an object of class, say Foo?

a) Foo obj = new Foo; b) obj = new Foo(); c) Foo obj = new Foo(); d) new Foo obj;

Answer: c) Foo obj = new Foo();

Programming in Java NPTEL 2022 Week 2 Quiz solutions

Q8. Following is a program given for this question.

a) 0 b) 1 c) false d) true

Answer: c) false

Q9. Which of the following can be used to take input from user during the execution of a program?

a) Using the string array provided as a parameter to the main method. b) getText() method can be used to get user input from the command line. c) Scanner class can be used by passing the predefined object System.in d) Once the execution starts, there is no way to provide user input.

Answer: c) Scanner class can be used by passing the predefined object System.in

a) 14 b) 12 c) 15 d) 17

Answer: d) 17

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Java Week 1:Q1 To find the perimeter and area of a circle given a value of radius.

Java Week 1:Q2 To find the largest among three numbers x, y, and z.

Java Week 1:Q3 Consider First n even numbers starting from zero(0) and calculate sum of all the numbers divisible by 3 from 0 to n. Print the sum.

Java Week 1:Q4 To check whether the number is an Armstrong number or not.

Java Week 1:Q5 To help Ram , find the highest mark and average mark secured by him in "s" number of subjects.

Java Week 2:Q1 To call the method print() in class Student following the concept of inner class.

Java Week 2:Q2 To call the method print() of class Student first and then call print() method of class School.

Java Week 2:Q3 To call print() method of class Question by creating a method named ‘studentMethod()’.

Java Week 2:Q4 To call default constructor first and then any other constructor in the class Answer.

Java Week 2:Q5 To debug the program which is intended to print 'NPTEL JAVA'.

Java Week 3:Q1 To the generation of Fibonacci numbers.

Java Week 3:Q2 Define a class Point with two fields x and y each of type double. Also , define a method distance(Point p1, Point p2) to calculate the distance between points p1 and p2 and return the value in double. Complete the code segment given below. Use Math.sqrt( ) to calculate the square root.

Java Week 3:Q3 A class Shape is defined with two overloading constructors in it. Another class Test1 is partially defined which inherits the class Shape. The class Test1 should include two overloading constructors as appropriate for some object instantiation shown in main( ) method. You should define the constructors using the super class constructors. Also, override the method calculate( ) in Test1 to calculate the volume of a Shape.

Java Week 3:Q4 This program to exercise the call of static and non-static methods. A partial code is given defining two methods, namely sum( ) and multiply ( ). You have to call these methods to find the sum and product of two numbers.

Java Week 3:Q5 To swap two numbers using call by object reference.

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NPTEL Programming in Java Week 5 Assignment Solution 2023

NPTEL Programming in Java Week 5 All Programming Assignment Solutions – January 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 catch the ArithmeticException  in the following, if any. On the occurrence of such an exception, your program should print “ Exception caught: Division by zero. ” If there is no such exception, it will print the result of division operation on two integer values.

Question : 2 In the following program, an array of integer data to be initialized. During the initialization, if a user enters a value other than integer value, then it will throw InputMismatchException exception. On the occurrence of such an exception, your program should print “ You entered bad data .” If there is no such exception it will print the total sum of the array.

Question : 3  In the following program, there may be multiple exceptions. You have to complete the code using only one try-catch block to handle all the possible exceptions.

For example, if user’s input is 1, then it will throw and catch “ java.lang.NullPointerException “.

Question : 4 An interface Number is defined in the following program. You have to declare a class A, which will implement the interface Number. Note that the method findSqr(n) will return the square of the number n.

Question : 5 This program is to find the GCD (greatest common divisor) of two integers writing a recursive function  findGCD(n1,n2) . Your function should return -1 , if the argument(s) is(are) other than positive number(s).

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NPTEL Exam Experience for Business Intelligence and Analytics

At MAKAUT University, West Bengal, as MCA students near the end of their academic journey, they encounter a significant milestone: the NPTEL (National Programme on Technology Enhanced Learning) exam. For many, myself included, this exam marks the culmination of years of dedication to mastering our chosen fields. In my case, that field is Business Intelligence and Analytics , a domain brimming with potential.

NPTEL Learning Experience

The NPTEL exam is a joint effort between the university and NPTEL, providing a platform for online courses and rigorous assessments. The process begins with students logging into the Swayam Central portal using their email credentials. After selecting their desired course, such as Business Intelligence and Analytics, they proceed to register and complete the payment process.

Preparing for the Exam

Step 1: Course Registration and Payment: Log in to the Swayam Central portal, select the Business Intelligence and Analytics course, register, and complete the payment process.

Step 2: Access Course Materials: Once payment is confirmed, students gain access to course materials, including preloaded videos and lectures by renowned professors from institutions like IIT Bombay, Delhi, Kanpur, Kharagpur, Madras, Guwahati, and Roorkee.

Step 3: Live Sessions and Guidance: Participate in live doubt-clearing sessions conducted by professors, who offer valuable insights and guidance throughout the course duration.

Step 4: Weekly Assignments: Each week of the 12-week course is packed with new lessons, ranging from basic Business Intelligence and Analytics concepts to advanced data manipulation techniques. Completing weekly assignments is crucial, as they reinforce learning and prepare students for the exam.

Step 5: Self-Study and Practice: In addition to watching videos and attending live sessions, dedicate time to self-study. Take detailed notes, read them carefully, and practice solving assignments diligently. Previous year’s exam questions and weekly assignment questions are valuable resources for practice.

Step 6: Exam Criteria: Understand the criteria for obtaining the certificate. In the case of Business Intelligence and Analytics, it may involve achieving an average assignment score of at least 10 out of 25 and an exam score of at least 30 out of 75.

Facing the Exam

Exam Schedule: The exam date is announced well in advance, allowing students to prepare accordingly.

Hall Ticket: Download and print the hall ticket from the portal, ensuring it is brought to the exam center along with a valid photo ID on the day of the exam.

Exam Day: Arrive at the exam center on time, feeling prepared and confident. Utilize the full duration of the exam to carefully answer the questions.

Exam Experience: The exam experience is often a culmination of the learning journey, where students can demonstrate their understanding and application of Business Intelligence and Analytics concepts.

My Exam Experience

On the day of the NPTEL exam for Business Intelligence and Analytics, I arrived at the exam center well before the reporting time of 8:30 am. Anticipation filled the air as I mentally prepared for the challenge ahead. The exam was scheduled to begin at 9:00 am and last for three hours.

Entering the examination hall, I ensured I had my hall ticket and a valid photo ID ready for verification. As the clock struck 9:00 am, I opened the question paper with determination, ready to tackle the challenges it presented.

The questions were indeed tough, testing the depth of my understanding of Business Intelligence and Analytics concepts. Despite the initial difficulty, I remained focused and determined to give my best effort. With each question, I carefully analyzed the problem and applied the knowledge I had acquired throughout the course.

As time flew by, I immersed myself in solving the challenging questions, refusing to give up despite the pressure. With persistence and determination, I tackled each question with confidence, drawing upon every bit of knowledge and problem-solving skills at my disposal.

As the clock neared 12:00 pm, I made a final push to complete the exam, ensuring that I had given each question the attention it deserved. Despite the tough nature of the questions, I left the exam hall with a sense of satisfaction, knowing that I had given it my all.

In Conclusion

The NPTEL exam experience is a journey filled with learning and growth. From registering for courses to facing the exam, each step offers valuable lessons and opportunities for improvement. With the support of teachers, access to online resources, and dedication to self-study, students can navigate this milestone with confidence, paving the way for future success in their chosen field of Business Intelligence and Analytics and beyond.

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