NPTEL Programming In Java Assignment 1 Answers 2023

NPTEL Programming In Java All Programming Assignment  Answers 2023

Programming Assignment 1

import java.util.Scanner;
public class Exercise1_1 {
       public static void main(String[] args) {
       Scanner s = new Scanner(System.in);
       double radius= s.nextDouble();
       double perimeter;
       double area;
if(radius<=0)
 {
  System.out.println("please enter non zero positive number ");
 }
else
{
 perimeter = 2 * Math.PI * radius;
 area = Math.PI * radius * radius;
 System.out.println(perimeter);
 System.out.println(area);
}
 }
}

Programming Assignment 2

import java.util.Scanner;
public class Exercise1_2 {
       public static void main(String[] args) {
        Scanner s = new Scanner(System.in);
        int x = s.nextInt();
        int y = s.nextInt();
        int z = s.nextInt();
        int result = 0;
if(x >= y && x >= z)
        {
            result=x;
        }
        else if(y >= z)
        {
            result=y;
        }
        else
        {
            result=z;
        }
System.out.print(result);
 }
}

Programming Assignment 3

import java.util.Scanner;
public class Exercise1_3 {
       public static void main(String[] args) {
	   Scanner sc = new Scanner(System.in);
	   int n=sc.nextInt();
	   int sum=0;
int result=1;
int i=0;
while(result<=n)
	 {
	  if(i%2==0)
	  {
		 if(i%3==0)
		 {
			 sum=sum+i;

         }
		 result=result+1;
	  }
	  i=i+1;
	 }
      System.out.println(sum);
 }
}

Programming Assignment 4

import java.util.Scanner;
public class Exercise1_4 {
    public static void main(String[] args) {
	   Scanner sc = new Scanner(System.in);
	   int n=sc.nextInt();
           int result=0;
int temp=n;
int c=0,t;
//Use while loop to check the number is Armstrong or not.
    while(n>0)
	{
		t=n%10;
		n=n/10;
		c=c+(t*t*t);
	}
	if(temp==c)
		result=1;
	else
		result=0;
    //Evaluation code
    System.out.println(result);
 }
}

Programming Assignment 5

import java.util.Scanner;
public class Exercise1_5{
    public static void main(String[] args) {
	 Scanner input = new Scanner(System.in);
         double mark_avg;
         int result;
         int i;
         int s;
      //define size of array
       s = input.nextInt();
     //The array is defined "arr" and inserted marks into it of integer type.
      int[] arr = new int[s];

	  for(i=0;i<arr.length;i++)
	  {
        	arr[i]=input.nextInt();
	  }
      //initialise maximum element as first element of array.
	  int max=arr[0];
      double sum=arr[0];
	  //traverse array elements to get the current max
      for(i=1;i<arr.length;i++)
	  {
         sum=sum+arr[i];
         if(arr[i]>max)
            max =arr[i];
	  }

    //Store the highest mark in the variable max
    //Store average mark in avgMarks
    result=max;
    mark_avg=sum/(arr.length);
    //Evaluation code
    System.out.println(result);
    System.out.println(mark_avg);
 }
}