In this java program, we have to generate harmonic series and print the sum of harmonic series till N terms.

**Harmonic Progression Series**

**Harmonic series**is a sequence of terms formed by taking the reciprocals of an arithmetic progression.

Let A, A+D, A+2D, A+3D .... A+nD be Arithmetic progression series till N+1 terms with A and D as first term and common difference respectively. Then corresponding Harmonic series will be

1/A, 1/(A+D), 1/(A+2D), 1/(A+3D) .... 1/(A+nD).

## Java Program to generate Harmonic Series and find it's sum till N terms

To generate a harmonic series, we first ask user to enter the number of terms in harmonic series. Using a for loop, we generate and print the harmonic series till N terms and at the same time calculate the sum series elements.

package com.tcc.java.programs; import java.util.Scanner; class HarmonicSeries { public static void main(String args[]) { int terms, i; double sum = 0.0; Scanner scanner = new Scanner(System.in); System.out.println("Enter the number of terms in series"); terms = scanner.nextInt(); System.out.println("Harmonic Series"); // Printing harmonic series for (i = 1; i <= terms; i++) { System.out.print("1/" + i + " "); sum += (double) 1 / i; } System.out.format("\nSum of Harmonic Series is %f", sum); } }Output

Enter the number of terms in series 7 Harmonic Series 1/1 1/2 1/3 1/4 1/5 1/6 1/7 Sum of Harmonic Series is 2.592857