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Programming in Java

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Prof. Debasis Samanta IIT Kharagpur

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Prerequisites, industry support, about the instructor.

Debasis Samanta  holds a Ph.D. in Computer Science and Engineering from Indian Institute of Technology Kharagpur. His research interests and work experience spans the areas of Computational Intelligence, Data Analytics, Human Computer Interaction, Brain Computing and Biometric Systems. Dr. Samanta currently works as a faculty member at the Department of Computer Science & Engineering at IIT Kharagpur.

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Assignment score = Score more than 50% in at least 9/12 assignments.

Programming Assignment score  = Score more than 50% in at least 30/46 assignments. Exam score = 50% of the proctored certification exam score out of 100 Only the e-certificate will be made available. Hard copies will not be dispatched.”

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Programming in Java | Week 9

Session: JAN-APR 2024

Course name: Programming In Java

Course Link: Click Here

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These are NPTEL Programming In Java Week 9 Assignment 9 Answers

Q1. What is the parent class of all AWT components? a. java.awt.Panel b. java.awt.Component c. java.awt.Container d. java.awt.Frame

Answer: b. java.awt.Component

Q2. Which event is generated when a user clicks a button in AWT? a. MouseEvent b. ActionListener c. KeyEvent d. WindowEvent

Answer: b. ActionListener

Q3. Which of the following architecture does the Swing framework use? a. MVC b. MVP c. Layered architecture d. Master-Slave architecture

Answer: a. MVC

Q4. A __________ is the basic class for all SWING UI components? a. Container b. JComponent c. Component d. Jbox

Answer: b. JComponent

Q5. Which event is generated when a window is resized in AWT? a. WindowEvent b. ComponentEvent c. ResizeEvent d. ContainerEvent

Answer: b. ComponentEvent

Q6. Which method is used to remove a component from a container in AWT? a. remove() b. deleteComponent() c. removeComponent() d. destroy()

Answer: a. remove()

Q7. What is true about the following code. a. Both “OK” and “Cancel” button is added, but only “Cancel” button is visble. b. Only “OK” button is added and visible, “Cancel” button is not added. c. Only “Cancel” button will be added and visible, “OK” button is not added. d. Code throws an ERROR.

Answer: a. Both “OK” and “Cancel” button is added, but only “Cancel” button is visble.

Q8. Which of the following function is used to generate the application’s top-level window? a. JPanel b. JFrame c. JCombo d. JBox

Answer: b. JFrame

Q9. In Java, what is the primary purpose of a layout manager? a. To manage memory allocation b. To arrange GUI components within a container c. To handle exception handling d. To control database connections

Answer: b. To arrange GUI components within a container

Q10. Which layout manager divides the container into five regions: North, South, East, West, and Center? a. Border Layout b. Grid Layout c. Flow Layout d. Card Layout

Answer: a. Border Layout

Programming Assignment

Question 1 Write a Java program that utilizes multithreading to calculate and print the squares of numbers from a specified begin to a specified end. The main method is already created. You need to design a SquareThread class that has two members, int begin; int end;

Each thread should sequentially print the squares of numbers from begin to end (both inclusive). The same code will be used to create another thread that prints the sqaure of numbers from end to begin in reverse order. (if begin is greater than end, print the square of each number in reverse order first) The main method will first call SquareThread with begin and end and then in reverse order. The class you create should be able to handle such case and print as required in the correct order. HINT: use the keyword synchronized in the run method.

Question 2 Complete the code segment to catch the exception in the following, if any. On the occurrence of such an exception, your program should print § Please enter valid data If there is no such exception, it will print the square of the number entered.

Question 3 The program given below stores characters in a byte array named byte_array, which means ‘A’ is stored as 65. Your task is the following: § Given a user input n , print the output in the given format, if n = 1, print: o byte_array[1] = ‘P’ § If the value of n is negative or is out of bound, then use TRY_CATCH to print the following: o Array index is out of range

Question 4 Define a class Point with members § private double x; § private double y; and methods: § public Point(double x, double y){} // Constructor to create a new point? § public double distance(Point p2){} // Function to return the distance of this Point from another Point

Question 5 Complete the code below with a catch statement to print the following if the denominator (b) is zero § Cannot Divide by ZERO

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Session: JULY-DEC 2023

Course Name: Programming In Java

Question 1 Problem statement: Complete the code to develop a BASIC CALCULATOR that can perform operations like Addition, Subtraction, Multiplication and Division.

Question 2 Complete the code to develop an ADVANCED CALCULATOR that emulates all the functions of the GUI Calculator as shown in the image.

Question 3 Complete the code to perform a 45 degree anti clock wise rotation with respect to the center of a 5 × 5 2D Array as shown below: INPUT: 00100 00100 11111 00100 00100 OUTPUT: 10001 01010 00100 01010 10001

Question 4 Problem statement: A program needs to be developed which can mirror reflect any 5 × 5 2D character array into its side-by-side reflection. Write suitable code to achieve this transformation as shown below: INPUT: OUTPUT: OOXOO OOXOO OOXOO OOXOO XXXOO OOXXX OOOOO OOOOO XOABC CBAOX

Question 5 Write suitable code to develop a 2D Flip-Flop Array with dimension 5 × 5, which replaces all input elements with values 0 by 1 and 1 by 0. An example is shown below: INPUT: 00001 00001 00001 00001 00001 OUTPUT: 11110 11110 11110 11110 11110

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Session: JAN-APR 2023

Course Name: Programming in Java

Q1. Which of the following is/are correct regarding events in Java? a. EventObject is super class of all the events. b. AdjustmentEvent will be notified if scroll bar is manipulated. c. All the classes and methods required for even handling in Java is in java.io package. d. getID() method can be used to determine the name of an event.

Answer: a, b

Q2. Which of the following classes is used to display a message dialog in Java Swing? a. JOptionPane b. IDialog c. JMessageDialog d. JFrame

Answer: a. JOptionPane

Q3. Which of the following event is occurred when a button is pressed, a list item is double-clicked or a menu item is selected? a. AdjustmentEvent b. ActionEvent c. ContainerEvent d. ComponentEvent

Answer: b. ActionEvent

Q4. Which of the statements are correct about Swing programming? a. AWT is a heavyweight programming. b. Swing is heavyweight programming. c. Swing is lightweight programming. d. Both AWT and Swing are lightweight programming.

Answer: c. Swing is lightweight programming.

Q5. Event class is defined in which of the following libraries? a. java.io b. javalang c. java.net d. java.util

Answer: d. java.util

Q6. Which of the following is/are class(es) in javax.swing package? a. BoxLayout b. MenuElement c. JComponent d. Scrollable

Answer: a, c

Q7. Which of the following statement(s) is/are true? a. Swing component frame does not support Window Listner. b. Swing component combobox does not support Window Listner. c. Swing component checkbox does not support Window Listner. d. Swing component dialog does not support Window Listner.

Answer: b, c

Q8. A class which implements the ActionListener interface, also it must implement which of the following methods? a. void handle( ActionEvent e ) b. void actionPerformed( ActionEvent e ) c. void eventDispatched( AWTEvent e ) d. String getActionCommand( ActionEvent e )

Answer: b. void actionPerformed( ActionEvent e )

Q9. When a component is added or removed, which of the following events is generated? a. ComponentEvent b. ContainerEvent c. FocusEvent d. InputEvent

Answer: b. ContainerEvent

Q10. Which of these packages contains all the event handling interfaces? a. java.lang b. java.awt c. java.awt.event d. java.event

Answer: c. java.awt.event

Programming Assignment of Programming in Java

Write suitable code to develop a 2D Flip-Flop Array with dimension 5 × 5, which replaces all input elements with values 0 by 1 and 1 by 0. An example is shown below: INPUT: 00001 00001 00001 00001 00001 OUTPUT: 11110 11110 11110 11110 11110

A program needs to be developed which can mirror reflect any 5 × 5 2D character array into its side-by-side reflection. Write suitable code to achieve this transformation as shown below: INPUT: OUTPUT: OOXOO OOXOO OOXOO OOXOO XXXOO OOXXX OOOOO OOOOO XOABC CBAOX

Complete the code to perform a 45 degree anti clock wise rotation with respect to the center of a 5 × 5 2D Array as shown below: INPUT: 00100 00100 11111 00100 00100 OUTPUT: 10001 01010 00100 01010 10001

Complete the code to develop an ADVANCED CALCULATOR that emulates all the functions of the GUI Calculator as shown in the image.

Note the following points carefully : 1. Use only double datatype to store all numeric values. 2. Each button on the calculator should be operated by typing the characters from ‘a’ to ‘p’. 3. To calculate 25-6, User should input fjhkc (where, f for 2, j for 5, h for ‘-‘, k for 6 and c for ‘=’ ). 3. You may use the already defined function gui_map(char). 4. Without ‘=’, operations won’t give output as shown in Input_2 and Output_2 example below. 5. The calculator should be able to perform required operations on two operands as shown in the below example: Input_1: klgc Output_1: 18.0

Complete the code to develop a BASIC CALCULATOR that can perform operations like Addition, Subtraction, Multiplication and Division. Note the following points carefully : 1. Use only double datatype to store calculated numeric values. 2. Assume input to be of integer datatype. 3. The output should be rounded using Math.round() method. 4. Take care of the spaces during formatting output (e.g., single space each before and after =). 5. The calculator should be able to perform required operations on a minimum of two operands as shown in the below example: Input: 5+6 Output: 5+6 = 11

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Session: JULY-DEC 2022

Course Name: Programming in Java NPTEL

Q1) Which of the following Listener(s) is/are supported by button Swing component ? a. Action Listner b. Change Listner c. Item Listner d. Window Listner

Answer: a, b, c

Q2) Which of the following is/are NOT interface(s) in javax.swing package? a. MenuElement b. BoxLayout c. JComponent d. Scrollable

Q3) Which of the following statement(s) is/are false? a. Swing component frame support Window Listner b. Swing component combo box support Window Listner. c. Swing component check box support Window Listner. d. Swing component dialog support Window Listner.

Q4) Which package provides many event classes and Listener interfaces for event handling? a. java.awt.activeevent b. java.awt.event c. java.awt.listener d. none of these

Answer: b. java.awt.event

Q5) Select the correct information a. JTextField cannot be used as a JLabel. b. JLabel cannot be used as a JTextField. c. Button grouped radio button cannot be used instead of JComboBox. d. JPassword Field extends JLabel.

Answer: b. JLabel cannot be used as a JTextField.

Q6) Which of the following is/are incorrect regarding events in Java? a. EventClass is super class of all the events. b. AdjustmentEvent will be notified if scroll bar is manipulated. c. All the classes and methods required for even handling in Java is in java.awt package. d. getID() method can be used to determine the type of event.

Answer: a. EventClass is super class of all the events.

Q7) Which of the following is/are interface(s) of java.awt package? a. Button b. Choice c. Dialog d. Paint

Answer: d. Paint

Q8) Which of the following displays components row-by-row in the order in which they were added to the JFrame? a. CardLayout b. FlowLayout c. BorderLayout d. GridLayout

Answer: b. FlowLayout

Q9) Which of the following statements are true? a. Java AWT components are platform-dependent. b. Java Swing componets are platform-independent. c. MVC pattern is not supported by AWT. d. MVC pattern is supported by Swing.

Answer: a, b, c, d

Q10) Which of the following method is used to set a frame, say f with size 300 × 200 pixels? JFrame f = new JFrame (); a. f.setsize (300, 200); b. f.setSize (300, 200); c. f.paint (300, 200); d. f.setVisible (300, 200);

Answer: b. f.setSize (300, 200);

Question 1 Complete the code to develop a BASIC CALCULATOR that can perform operations like Addition, Subtraction, Multiplication and Division. Input: 5+6 Output: 5+6 = 11

Question 2 Complete the code to develop an ADVANCED CALCULATOR that emulates all the functions of the GUI Calculator as shown in the image. Input: klgc Output: 18.0

Question 4 A program needs to be developed which can mirror reflect any 5 × 5 2D character array into its side-by-side reflection. Write suitable code to achieve this transformation as shown below: INPUT: OOXOO OOXOO XXXOO OOOOO XOABC OUTPUT: OOXOO OOXOO OOXXX OOOOO CBAOX

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Programming_In_Java_NPTEL

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Week 1 Week 2 Week 3 Week 4 Week 5 Week 6 Week 7 Week 8 Week 9 Week 10 Week 11 Week 12

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.

Java Week 4:Q1 To execute the following program successfully. You should import the correct package(s) and/or class(s) to complete the code.

Java Week 4:Q2 To print the current year.

Java Week 4:Q3 The program in this assignment is attempted to print the following output:

Java Week 4:Q4 To call the default method in the interface First and Second.

Java Week 4:Q5 To print the following output.

Java Week 5:Q1 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.

Java Week 5:Q2 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).

Java Week 5:Q3 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.

Java Week 5:Q4 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.

Java Week 5:Q5 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“.

Java Week 6:Q1 Complete the code segment to print the following using the concept of extending the Thread class in Java:

Java Week 6:Q2 In the following program, a thread class ThreadRun is created using the Runnable interface which prints “Thread using Runnable interface”. Complete the main class to create a thread object of the class ThreadRun and run the thread,

Java Week 6:Q3 A part of the Java program is given, which can be completed in many ways, for example using the concept of thread, etc. Follow the given code and complete the program so that your program prints the message “NPTEL Java”. Your program should utilize the given interface/ class.

Java Week 6:Q4 Execution of two or more threads occurs in a random order. The keyword ‘synchronized’ in Java is used to control the execution of thread in a strict sequence. In the following, the program is expected to print some numbers. Do the necessary use of ‘synchronized’ keyword, so that, the program prints the output in the following order:

Java Week 6:Q5 Add necessary codes to print the following:

Java Week 7:Q1 Complete the following code fragment to read three integer values from the keyboard and find the sum of the values. Declare a variable “sum” of type int and store the result in it.

Java Week 7:Q2 Complete the code segment to catch the exception in the following, if any. On the occurrence of such an exception, your program should print “Please enter valid data” .If there is no such exception, it will print the “square of the number”.

Java Week 7:Q3 A byte char array is initialized. You have to enter an index value”n”. According to index your program will print the byte and its corresponding char value. Complete the code segment to catch the exception in the following, if any. On the occurrence of such an exception, your program should print “exception occur” .If there is no such exception, it will print the required output.

Java Week 7:Q4 The following program reads a string from the keyboard and is stored in the String variable “s1”. You have to complete the program so that it should should print the number of vowels in s1 . If your input data doesn’t have any vowel it will print “0”.

Java Week 7:Q5 A string “s1” is already initialized. You have to read the index “n” from the keyboard. Complete the code segment to catch the exception in the following, if any. On the occurrence of such an exception, your program should print “exception occur” .If there is no such exception, your program should replace the char “a” at the index value “n” of the “s1” ,then it will print the modified string.

Java Week 8:Q1 Write a program which will print a pyramid of “ ” ‘s of height “n” and print the number of “ ” ‘s in the pyramid.

Java Week 8:Q2 Write a program which will print a pascal pyramid of “*” ‘s of height “l” .

Java Week 8:Q3 Write a program which will print a pyramid of “numbers” ‘s of height “n” and print the sum of all number’s in the pyramid.

Java Week 8:Q4 Write a program to print symmetric Pascal’s triangle of “*” ‘s of height “l” of odd length . If input “l” is even then your program will print “Invalid line number”.

Java Week 8:Q5 Write a program to display any digit(n) from 0-9 using “7 segment display”.

Java Week 9:Q1 Complete the code to develop a BASIC CALCULATOR that can perform operations like Addition, Subtraction, Multiplication and Division.

Java Week 9:Q2 Complete the code to develop an ADVANCED CALCULATOR that emulates all the functions of the GUI Calculator as shown in the image.

Java Week 9:Q3 Complete the code to perform a 45 degree anti clock wise rotation with respect to the center of a 5 × 5 2D Array as shown below:

Java Week 9:Q4 A program needs to be developed which can mirror reflect any 5 × 5 2D character array into its side-by-side reflection. Write suitable code to achieve this transformation as shown below:

Java Week 9:Q5 Write suitable code to develop a 2D Flip-Flop Array with dimension 5 × 5, which replaces all input elements with values 0 by 1 and 1 by 0. An example is shown below:

Java Week 10:Q1 The following code needs some package to work properly. Write appropriate code to import the required package(s) in order to make the program compile and execute successfully.

Java Week 10:Q2 Write the JDBC codes needed to create a Connection interface using the DriverManager class and the variable DB_URL. Check whether the connection is successful using ‘isAlive(timeout)’ method to generate the output, which is either ‘true’ or ‘false’.

Java Week 10:Q3 Due to some mistakes in the below code, the code is not compiled/executable. Modify and debug the JDBC code to make it execute successfully.

Java Week 10:Q4 Complete the code segment to create a new table named ‘PLAYERS’ in SQL database using the following information.

Coulmn	UID	First_Name	Last_Name	Age
Type	Integer	Varchar(45)	Varchar(45)	Integer

Java Week 10:Q5 Complete the code segment to rename an already created table named ‘PLAYERS’ into ‘SPORTS’.

Java Week 11:Q1 Complete the code segment to insert the following data using prepared statement in the existing table ‘PLAYERS’.

Coulmn	UID	First_Name	Last_Name	Age
Row 1	1	Ram	Gopal	26
Row 2	2	John	Mayer	22

Java Week 11:Q2 Write the required code in order to update the following data in the table ‘PLAYERS’.

Coulmn	UID	First_Name	Last_Name	Age
From	1	Ram	Gopal	26
To	1	Rama	Gopala	24

Java Week 11:Q3 Write the appropriate code in order to delete the following data in the table ‘PLAYERS’.

Coulmn	UID	First_Name	Last_Name	Age
Delete	1	Rama	Gopala	24

Java Week 11:Q4 Complete the following program to calculate the average age of the players in the table ‘PLAYERS’.

Structure of Table ‘PLAYERS’ is given below: | Coulmn | UID | First_Name | Last_Name | Age | |——–|———|————-|————-|———| | Type | Integer | Varchar(45) | Varchar(45) | Integer | | | | | | |

Java Week 11:Q5 Complete the code segment to drop the table named ‘PLAYERS’.

Java Week 12:Q1 Complete the code to develop an extended version of the ADVANCED CALCULATOR with added special functions that emulates all the functions of the GUI Calculator as shown in the image.

Java Week 12:Q2 A partial code fragment is given. The URL class object is created in try block.You should write appropriate method( ) to print the protocol name and host name from the given url string.

Java Week 12:Q3 Write a program to create a record by taking inputs using Scanner class as first name as string ,last name as string ,roll number as integer ,subject1 mark as float,subject2 mark as float. Your program should print in the format

Java Week 12:Q4 A program code is given to call the parent class static method and instance method in derive class without creating object of parent class. You should write the appropriate code so that the program print the contents of static method() and instance method () of parent class.

Java Week 12:Q5 Write a recursive function to print the sum of first n odd integer numbers. The recursive function should have the prototype

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NPTEL Programming in Java Jan 2024 Week 12

Week 12 : programming assignment 1.

Write a program that calculates the letter grade based on a numerical score entered by the user.

§   >=80 - A

§   70-79 - B

§   60-69 - C

§   50-59 - D

§   40-49 - P

§   <40 - F

Follow the naming convention as given in the main method of the suffix code.

Public Test Cases	Input	Expected Output	Actual Output	Status

Week 12 : Programming Assignment 2

Write a program that validates a user's password based on the following criteria (in the following order):

§   1. The password must be at least 8 characters long.

§   2. The password must contain at least one uppercase letter (A-Z).

§   3. The password must contain at least one lowercase letter (a-z).

§   4. The password must contain at least one digit (0-9).

Take the following assumptions regarding the input:

§   The input will not contain any spaces

Your output should print the rule that it violates  exactly  as defined above.

If the password violates multiple rules then the  first rule it violates should take priority .

For example:

Input:          

Output:      

Your password is invalid. The password must be at least 8 characters long.

Week 12 : Programming Assignment 3

Write a program that analyzes a given text and provides the following information:

§   Number of words:  The total number of words in the text.

§   Longest word:  The longest word found in the text.

§   Vowel count:  The total number of vowels (a, e, i, o, u) in the text.

§   The input will only contain lowerspace characters[a-z] and spaces.

§   The last word will not end with a space nor with any special character.

You need to print exactly as shown in the test case.

Do not print anyting else while taking input.

Private Test cases used for Evaluation	Status
Test Case 1
Test Case 2

Week 12 : Programming Assignment 4

Write a Java program to calculate the area of different shapes using inheritance.

Each shape should  extend   the  abstact class Shape

Your task is to make the following classes by extending the  Shape   class:

§   Circle   (use  Math.PI  for area calculation)

§   Rectangle

§   Square

Each Shape subclass should have these  private   variables apart from the  private   variables for storing  sides   or  radius .

private String shapeType ; private double area ;

Public Test Cases	Input	Expected Output	Actual Output	Status

Week 12 : Programming Assignment 5

Implement two classes,  Car   and  Bike , that implement the  Vehicle   interface. Each class should have appropriate attributes and constructors. Ensure that the  start ,  accelerate , and  brake  methods are implemented correctly for each vehicle.

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Programming In Java

Exercise1_1 - Complete the code segment to find the perimeter and area of a circle given a value of radius. Exercise1_2 - Complete the code segment to find the largest among three numbers x,y, and z. You should use if-then-else construct in Java. Exercise1_3 - Consider First n even numbers starting from zero(0).Complete the code segment to calculate sum of all the numbers divisible by 3 from 0 to n. Print the sum. Exercise1_4 - Complete the code segment to check whether the number is an Armstrong number or not. Exercise1_5 - Complete the code segment to help Ragav , find the highest mark and average mark secured by him in "s" number of subjects.

Exercise2_1 - Complete the code segment to call the method print() of class Student first and then call print() method of class School. Exercise2_2 - Complete the code segment to call the method print() of class given class Printer to print the following. Exercise2_3 - Complete the code segment to call print() method of class Question by creating a method named ‘studentMethod()’. Exercise2_4 - Complete the code segment to call default constructor first and then any other constructor in the class. Exercise2_5 - Complete the code segment to debug / complete the program which is intended to print 'NPTEL JAVA'.

Excercise3_1 - This program is related to the generation of Fibonacci numbers.>For example: 0,1, 1,2, 3,5, 8, 13,… is a Fibonacci sequence where 13 is the 8th Fibonacci number. Exercise3_2 - 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. Exercise3_3 - A class Shape is defined with two overloading constructors in it. Another class Test1 is partially defined which inherits the class Shape. The ..., Exercise3_4 - 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......, Exercise3_5 - Complete the code segment to swap two numbers using call by object reference.

Exercise4_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. Exercise4_2 - Complete the code segment to print the current year. Your code should compile successfully. Exercise4_3 - The program in this assignment is attempted to print the following output: Exercise4_4 - Complete the code segment to call the default method in the interface First and Second. Exercise4_5 - Modify the code segment to print the following output.

Exercise5_1 - 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. Exercise5_2 - 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. Exercise5_3 - 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. Exercise5_4 - 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.., Exercise5_5 - 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.

Exercise6_1 - Complete the code segment to print the following using the concept of extending the Thread class in Java: Exercise6_2 - In the following program, a thread class Question62 is created using the Runnable interface Complete the main() to create a thread object of the class Question62 and run the thread. It should print the output as given below. Exercise6_3 - Given a snippet of code, add necessary codes to print the following: -----------------OUTPUT------------------- Name of thread 't1':Thread-0 Name of thread 't2':Thread-1 New name of thread 't1':Week 6 Assignment Q5 New name of thread 't2':Week 6 Assignment Q5 New ------------------------------------------------- Exercise6_4 - Execution of two or more threads occurs in a random order. The keyword 'synchronized' in Java is used to control the execution of thread .., Exercise6_5 - In the following program, a thread class Question62 is created using the Runnable interface Complete the main() to create a thread object of the class Question62 and run the thread. It should print the output as given below.

Exercise7_1 - Complete the following code fragment to read three integer values from the keyboard and find the sum of the values. Declare a variable "sum" of type int and store the result in it. Exercise7_2 - Complete the code segment to catch the exception in the following, if any. On the occurrence of such an exception, your program should print “Please enter valid data” .If there is no such exception, it will print the "square of the number". Exercise7_3 - A byte char array is initialized. You have to enter an index value"n". According to index your program will print the byte and its corresponding char value. Complete the code segment to catch the exception in the.., Exercise7_4 - The following program reads a string from the keyboard and is stored in the String variable "s1".., Exercise7_5 -A string "s1" is already initialized. You have to read the index "n" from..,

Exercise8_1 - Write a program which will print a pyramid of " " 's of height "n" and print the number of " " 's in the pyramid. Exercise8_2 - Write a program which will print a pascal pyramid of " " 's of height "l" . Exercise8_3 - Write a program which will print a pyramid of "numbers" 's of height "n" and print the sum of all number's in the pyramid. Exercise8_4 - Write a program to print symmetric Pascal's triangle of " " 's of height "l" of odd length . If input "l" is even then your program will print "Invalid line number". Exercise8_5 - Write a program to display any digit(n) from 0-9 represented as a "7 segment display".

Exercise9_1 - Complete the code to develop a BASIC CALCULATOR that can perform operations like Addition, Subtraction, Multiplication and Division. Exercise9_2 - Complete the code to develop an ADVANCED CALCULATOR that emulates all the functions of the GUI Calculator as shown in the image. Exercise9_3 - Complete the code to perform a 45 degree anti clock wise rotation with respect to the center of a 5 × 5 2D Array as shown below: Exercise9_4 - A program needs to be developed which can mirror reflect any 5 × 5 2D character array into its side-by-side reflection. Write suitable code to achieve this transformation as shown below: Exercise9_5 - Write suitable code to develop a 2D Flip-Flop Array with dimension 5 × 5, which replaces all input elements with values 0 by 1 and 1 by 0. An example is shown below:

Exercise10_1 - The following code needs some package to work properly. Write appropriate code to import the required package(s) in order to make the program compile and execute successfully. Exercise10_2 - Write the JDBC codes needed to create a Connection interface using the DriverManager class and the variable DB_URL. Check whether the connection is successful using 'isAlive(timeout) Exercise10_3 - Due to some mistakes in the below code, the code is not compiled/executable. Modify and debug the JDBC code to make it execute successfully. Exercise10_4 - Complete the code segment to rename an already created table named ‘PLAYERS’ into ‘SPORTS’. Exercise10_5 - Complete the code segment to rename an already created table named ‘PLAYERS’ into ‘SPORTS’.

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• Java 100.0%

Programming in Java

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• Assignment score = 25% of average of best 8 assignments out of the total 12 assignments given in the course. 
• ( All assignments in a particular week will be counted towards final scoring - quizzes and programming assignments). 
• Unproctored programming exam score = 25% of the average scores obtained as part of Unproctored programming exam - out of 100
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Course Status :	Completed
Course Type :	Elective
Duration :	12 weeks
Category :
Credit Points :	3
Undergraduate
Start Date :	27 Jan 2020
End Date :	17 Apr 2020
Enrollment Ends :	03 Feb 2020
Exam Date :	26 Apr 2020 IST