BlueJ Program To Display Sum of Series: x – x^3 + x^5 – x^7 + ….. x^n

This is a BlueJ program which displays the sum of a series using pow function of Math class.

import java.util.*;

class Max

{

Scanner sc=new Scanner(System.in);

int n,i,x,c=1;

double sum=0;

public void take()

{

System.out.print("\nValue of 'n': ");

n=sc.nextInt();

System.out.print("\nValue of 'x': ");

x=sc.nextInt();

for(i=1;i< =n;i=i+2)

{

  sum=sum + Math.pow(x,i)*c;

  c=c*-1;

}

System.out.println("\nSum of the series: "+sum);

}

public static void main(String args[])

{

Max ob=new Max();

ob.take();

}

}

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