Computer Applications
Write Java program to find the sum of the given series:
1 + 1 / (1+2) + 1 / (1+2+3) + ………. + 1 / (1+2+3+…..+n)
Answer
import java.util.Scanner;
public class KboatSeriesSum
{
public static void main(String args[]) {
Scanner in = new Scanner(System.in);
System.out.print("Enter n: ");
int n = in.nextInt();
double sum = 0.0;
for (int i = 1; i <= n; i++) {
long term = 0;
for (int j = 1; j <= i; j++) {
term += j;
}
sum += (1.0 / term);
}
System.out.println("Sum=" + sum);
}
}
Variable Description Table
Program Explanation
Output
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