WAP to print the sum of harmonic progression series

In this tutorial we are going learn about printing the sum of harmonic progression series.

Let’s take the user input n with the scanner(system.in) and pass it on to a method as an argument and using a for loop we will run the loop till n and returns the sum of the series.

Note: Harmonic progression can be denoted as 1/a, 1/(a + d), 1/(a + 2d), 1/(a + 3d) …. 1/(a + nd).

Sample input:
n=5

Output:
2.283333

Sample Code Snippet:

public class HarmonicProgression {
	public double printHpSum(int n)
	{
		double sum=0.0,i;
		for(i=1;i<=n;i++)
		{
			sum=sum+1/i;
		}
		return sum;
	}
	public static void main(String args[])
	{
		Scanner sc=new Scanner(System.in);
		int n=sc.nextInt();
		HarmonicProgression hp=new HarmonicProgression();
		System.out.println(hp.printHpSum(n));	
	}
}

Output:
8
2.7178571428571425