[Question 7] ICSE 2016 Computer Application Solved - Sum Series

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Question 7.


Design a class to overload a function SumSeries() as follows:

(i) void SumSeries(int n, double x) - with one integer argument and one double
     argument to find and display the sum of the series given below:

            s = x/1 - x/2 + x/3 - x/4 + x/5... ... ... to n terms

(ii) void SumSeries() - To find and display the sum of the following series:

           s=1 + (1*2)  + (1*2*3) + ... ... ... +  (1*2*3*4... ... ...*20)



SOURCE CODE

import java.io.*;
import java.util.*;
public class ICSE2016_Ques7_Series
{
    double sum;
    void SumSeries(int n,double x)
    {
        for(int i=1;i<=n;i++)
        {
            if(i%2!=0)
            {
                sum=sum+(x/i);
            }
            else if(i%2==0)
            {
                sum=sum-(x/i);
            }
        }
        System.out.println("OUTPUT for first series ");
        System.out.println("Sum when x=6, n=6 : "+sum);
    }

    void SumSeries()
    {
        for(int i=1;i<=20;i++)
        {
            int f=1;
            for(int j=1;j<=i;j++)
            {
                f=f*j;
            }
            sum=sum+f;
        }
        System.out.println("OUTPUT for second series ");
        System.out.println("Sum = "+sum);
    }
}


OUTPUT




If you have any question then leave a comment below I will do my best to answer that question.


Comments

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