Sum of Series coderinme

Sum of Series coderinme

Write Java program to compute the sum of the 2+4+6+———+10.

Mathematically, This is an an Arithmetic Sequence because we can clearly see that the difference between one term and the next is a constant (difference 2). In General we could write an arithmetic sequence like this:
{a, a+d, a+2d, a+3d, … }
where:
a is the first term, and
d is the difference between the terms (called the “common difference”)
To sum up the terms of this arithmetic sequence:
a + (a+d) + (a+2d) + (a+3d) + …
use this formula:
Sum = n/2 * { 2a + (n-1) * d }
In Java, it is quiet simple:
Program:

import java.io.*;
public class Q10 
{
public static void main(String[] args) 
{
int sum=0,i;
for(i=2;i<=10;i=i+2)
sum=sum+i;
System.out.println(" The sum is :"+sum);
}
}

For more programs on Java, visit our Java Archives

Sum of Series coderinme

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