Week 02 : Programming Assignment 1 to 5 NPTEL Programming In Java Programming Assignment July-2024 Swayam

 

Week 02 : Programming Assignment 1

Due on 2024-08-08, 23:59 IST

Complete the code segment to call the method  display() of class Former first and then call display() method of class Latter.

Your last recorded submission was on 2024-07-27, 11:52 IST

Select the Language for this assignment.      --                     Java               

File name for this program : 

// This is the class named Former

class Former {

    // This is a method in class Former

    public void display() {

        System.out.println("This is Former Class.");

    }

}

// This is the class named Latter

class Latter {

    // This is a method in class Latter

    public void display() {

        System.out.print("This is Latter Class.");

    }

}

public class W02_P1 {

    public static void main(String[] args) {

// Write your code to create objects and call methods

Former f = new Former();

f.display();

Latter l = new Latter();

l.display();

}

}

   

Compilation : Passed
Public Test Cases: 1 / 1 Passed

Note: These tests may not be considered while scoring. Know more.

Public Test Cases	Input	Expected Output	Actual Output	Status
Test Case 1	NA	This is Former Class.\n This is Latter Class.	This is Former Class.\n This is Latter Class.	Passed

Private Test cases used for Evaluation	Status
Test Case 1	Passed

Week 02 : Programming Assignment 2

Due on 2024-08-08, 23:59 IST

Create a class Student with private attributes for name and age.

Use a constructor to initialize these attributes and provide public getter methods to access them.

In the main method, an instance of Student is created and the student's details are printed.

 

Guideline to Solve:

§ Define the Student class with private attributes.

§ Use a constructor to initialize the attributes.

§ Implement getter methods for the attributes.

Follow the naming convetion used in the Fixed code.

Your last recorded submission was on 2024-07-27, 11:59 IST

Select the Language for this assignment.      --                     Java               

File name for this program : 

import java.util.Scanner;

class Student {

// Write the definition of the class here

// Create 2 private variables name and age

  String name;

  int age;

// Create a constructor 

  Student(String name, int age){

    this.name = name;

    this.age = age;

  }

// Create getName() and getAge() functions

  public String getName(){

    return name;

  }

  public int getAge(){

    return age;

  }

}

class W02_P2 {

  public static void main(String[] args) {

    Scanner scanner = new Scanner(System.in);

    // Read input

    // System.out.print("Enter name: ");

    String name = scanner.nextLine();

    // System.out.print("Enter age: ");

    int age = scanner.nextInt();

    // Create Student object

    Student student = new Student(name, age);

    // Print student details

    System.out.println("Student Name: " + student.getName());

    System.out.print("Student Age: " + student.getAge());

    scanner.close();

  }

}

   

Compilation : Passed
Public Test Cases: 1 / 1 Passed

Note: These tests may not be considered while scoring. Know more.

Public Test Cases	Input	Expected Output	Actual Output	Status
Test Case 1	Alice 20	Student Name: Alice\n Student Age: 20	Student Name: Alice\n Student Age: 20	Passed

Private Test cases used for Evaluation	Status
Test Case 1	Passed

Week 02 : Programming Assignment 3

Due on 2024-08-08, 23:59 IST

Create a class Rectangle with attributes length and width.

Provide two constructors: one with no parameters (default to 1) and

another with parameters to initialize the attributes.

Use the this keyword to avoid name space collision.

Create a getArea() function that returns the area of the rectangle.

 

Guideline to Solve:

§ Define the Rectangle class with attributes and constructors.

§ Define a default Rectangle constructor that inializes length and width to 1.

§ Use the this keyword in the parameterized constructor.

§ Define a getArea() funtion that returns the area of there rectangle

Follow the naming convetion used in the Fixed code.

Your last recorded submission was on 2024-07-27, 12:22 IST

Select the Language for this assignment.      --                     Java               

File name for this program : 

import java.util.Scanner;

class Rectangle {

// Write the definition of the class here

// Create 2 private variables 

  double length;

  double width;

// Create a default constructor 

  Rectangle(){

    length = 1;

    width = 1;

  }

// Create a parameterised constructor

  Rectangle( double length, double width){

    this.length = length;

    this.width = width;

  }

// Create getLength(), getWidth() and getArea() functions

  public double getLength(){

    return length;

  }

  public double getWidth(){

    return width;

  }

  public double getArea(){

    return length*width;

  }

}

class W02_P3 {

    public static void main(String[] args) {

        Scanner scanner = new Scanner(System.in);

        // Read input

        // System.out.print("Enter length: ");

        double length = scanner.nextDouble();

        // System.out.print("Enter width: ");

        double width = scanner.nextDouble();

        // Create Rectangle objects

        Rectangle rect1 = new Rectangle();

        Rectangle rect2 = new Rectangle(length, width);

        // Print rectangle dimensions

        System.out.print("Default Rectangle: L, W, A : ");

        System.out.println(rect1.getLength() + ", " + rect1.getWidth() + ", " + rect1.getArea());

        System.out.print("Parameterised Rectangle: L, W, A : ");

        System.out.print(rect2.getLength() + ", " + rect2.getWidth() + ", " + rect2.getArea());

        scanner.close();

    }

}

   

Compilation : Passed
Public Test Cases: 1 / 1 Passed

Note: These tests may not be considered while scoring. Know more.

Public Test Cases	Input	Expected Output	Actual Output	Status
Test Case 1	2.5 3.5	Default Rectangle: L, W, A : 1.0, 1.0, 1.0\n Parameterised Rectangle: L, W, A : 2.5, 3.5, 8.75	Default Rectangle: L, W, A : 1.0, 1.0, 1.0\n Parameterised Rectangle: L, W, A : 2.5, 3.5, 8.75	Passed

Private Test cases used for Evaluation	Status
Test Case 1	Passed

Week 02 : Programming Assignment 4

Due on 2024-08-08, 23:59 IST

Create a class Circle that encapsulates the properties of a circle.

The class should have a private field for the radius, a constructor to initialize the radius, and methods to calculate the area and circumference of the circle.

NOTE: use Math.PI for PI calculations (DO NOT USE 22/7)

 

Guideline to Solve:

§ Define the Circle class with attributes and constructors.

§ Use the this keyword in the parameterized constructor.

§ Define a getArea() funtion that returns the area of there Circle (use Math.PI)

§ Define a getCircumference() funtion that returns the circumference of there Circle (use Math.PI)

Follow the naming convetion used in the Fixed code.

Select the Language for this assignment.      --                     Java               

File name for this program : 

import java.util.Scanner;

// Define the circle class here

class Circle{

  private double radius;

  Circle(double radius){

    this.radius = radius;

  }

  public double calculateArea(){

    return( Math.PI * radius * radius);

  }

  public double calculateCircumference(){

    return( 2 * Math.PI * radius);

  }

}

public class W02_P4 {

    public static void main(String[] args) {

        Scanner scanner = new Scanner(System.in);

        // System.out.print("Enter radius: ");

        double radius = scanner.nextDouble();

        // Create circle object

        Circle circle = new Circle(radius);

        // Calculate and print area

        double area = circle.calculateArea();

        // Print area to 2 decimal places

        System.out.printf("Area: %.2f\n", area);

        // Calculate and print circumference

        double circumference = circle.calculateCircumference();

        // Print circumference to 2 decimal places

        System.out.printf("Circumference: %.2f", circumference);

        scanner.close();

    }

}

   

Compilation : Passed
Public Test Cases: 1 / 1 Passed

Note: These tests may not be considered while scoring. Know more.

Public Test Cases	Input	Expected Output	Actual Output	Status
Test Case 1	5.0	Area: 78.54\n Circumference: 31.42	Area: 78.54\n Circumference: 31.42	Passed

Private Test cases used for Evaluation	Status
Test Case 1	Passed

Week 02 : Programming Assignment 5

Due on 2024-08-08, 23:59 IST

Complete the code by creating the constructor and the getter functions for a class Dog as defined below.

Select the Language for this assignment.      --                     Java               

File name for this program : 

import java.util.Scanner;

// Class Declaration

public class Dog {

    // Instance Variables

    private String name;

    private String breed;

    private int age;

    private String color;

// Create the constructor

Dog( String name, String breed, int age, String color){

  this.name = name;

  this.breed = breed;

  this.age = age;

  this.color = color;

}

// Create the getter functions

public String getName(){

  return name;

}

public String getBreed(){

  return breed;

}

public int getAge(){

  return age;

}

public String getColor(){

  return color;

}

public static void main(String[] args) {

        Scanner scanner = new Scanner(System.in);

        String name = scanner.nextLine();

        String breed = scanner.nextLine();

        int age = scanner.nextInt();

        String color = scanner.next();

        Dog tommy = new Dog(name, breed, age, color);

        System.out.println("Hi my name is: " + tommy.getName());

        System.out.println("My breed is: " + tommy.getBreed());

        System.out.println("My age is: " + tommy.getAge());

        System.out.print("My color is: " + tommy.getColor());

        scanner.close();

    }

}

   

Compilation : Passed
Public Test Cases: 1 / 1 Passed

Note: These tests may not be considered while scoring. Know more.

Public Test Cases	Input	Expected Output	Actual Output	Status
Test Case 1	Tommy German Shepard 2 Black	Hi my name is: Tommy\n My breed is: German Shepard\n My age is: 2\n My color is: Black	Hi my name is: Tommy\n My breed is: German Shepard\n My age is: 2\n My color is: Black	Passed

Private Test cases used for Evaluation	Status
Test Case 1	Passed

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