Week 12 : Programming Assignments - NPTEL >> Programming In Java - 2025

Week 12 : Programming Assignment 1

Solution :

  import java.util.Scanner;

public class W12_P1 {

    // Declare Student class
    static class Student {
        String name;
        int roll;

		// Answer
		public Student(String name,int roll) {
			this.name = name;
			this.roll = roll;
		}
		//End
		

	}

    public static void main(String[] args) {
        Scanner sc = new Scanner(System.in);

        String name = sc.nextLine();
        int roll = sc.nextInt();

        // Create object of Student class with given values
        Student s = new Student(name, roll);

        // Print student details
        System.out.println("Student Name: " + s.name);
        System.out.println("Roll Number: " + s.roll);

        sc.close();
    }
}

Week 12 : Programming Assignment 2

Solution :

 import java.util.Scanner;

public class W12_P2 {

    // Calculator class with overloaded add methods
    static class Calculator {

        public int add(int a, int b) {
            return a + b;
        }

		// Answer
		public int add(int a, int b, int c) {
            return a + b + c;
        }
		//End
		

		}

    public static void main(String[] args) {
        Scanner sc = new Scanner(System.in);

        int a = sc.nextInt();
        int b = sc.nextInt();

        int x = sc.nextInt();
        int y = sc.nextInt();
        int z = sc.nextInt();

        Calculator c = new Calculator();

        int sumTwo = c.add(a, b);
        System.out.println("Sum of two numbers: " + sumTwo);

        int sumThree = c.add(x, y, z);
        System.out.println("Sum of three numbers: " + sumThree);

        sc.close();
    }
}

Week 12 : Programming Assignment 3

Solution :

		// Answer
		int number = 10;
if(number > 0) {
  System.out.print("Positive Number");
}
else if( number < 0){
  System.out.print("Negative Number");
}
else {
  System.out.print("Zero");
}
		//End
		

		sc.close();
    }
}

Week 12 : Programming Assignment 4

Solution :

  import java.util.Scanner;

public class W12_P4 {
    public static void main(String[] args) {
        Scanner sc = new Scanner(System.in);

        int n = sc.nextInt();
        int sum = 0;

		// Answer
		for( int i = 1; i<=n;i++)
			{
			  sum = sum + i;
			}
		//End
		

		System.out.println("Sum is: " + sum);

        sc.close();
    }
}

Week 12 : Programming Assignment 5

Solution :

import java.util.Scanner;

public class W12_P5 {
    public static void main(String[] args) {
        Scanner sc = new Scanner(System.in);

        int n = sc.nextInt();
        int[] arr = new int[n];

        // Read n numbers into array
        for (int i = 0; i < n; i++) {
            arr[i] = sc.nextInt();
        }

        int sum = 0;
        int negativeCount = 0;

		// Answer
		for (int number : arr) {
            
            if (number > 0) {
                sum += number; 
            } 
            else if (number < 0) {
                negativeCount++; 
            }
          }


		//End
		

		System.out.println("Sum of positive numbers: " + sum);
        System.out.println("Count of negative numbers: " + negativeCount);

        sc.close();
    }
}