Question

Challenge for Programmers!!
Write a program in Java to print the series
0,3,8,15,24.n,upto n terms without using logic :-
${a}^{2} - 1$
Don't use the logic square of number-1,use other logic.
​

Answer 1

Answer:

The given co‎de is written in Java.

import java.util.*;

public class Series {

   public static void main(String args[])  {

       int i,n,a=0,b=3;

       System.out.print("Enter limit - ");

       n=(new Scanner(System.in)).nextInt();

       for(i=1;i<=n;i++,a+=b,b+=2)

           System.out.print(a+" ");

   }

}

Logic ?

• Logic for the series is very easy. The difference between each term in this series is - 3,5,7,9 and so on. Also, the difference between each term is in an A.P.
• So, here, I have declared two variables a and b. a is the term of the series and b is the difference between each term.
• Initially, a = 0 as first term is 0 and b = 3 as first difference is 3.
• After each iteration of for-loop, b is added to a and value of b is incremented by 2 so as to get the desired result.

Variable Description:

$\boxed{\begin{array}{c|c|c}\tt\underline{{N}ame}:&\tt \underline{Type}:&\tt\underline{Function}:\\ \tt i&\tt int&\tt {L}oop\: Variable.\\ \tt n&\tt int&\tt Stores\: limit.\\ \tt a&\tt int&\tt Term\:of\:the\:series.\\ \tt b&\tt int&\tt Difference\: between\:terms.\\\end{array}}$

Refer to the attachment for output.

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