this is a program which im trying for sum of a harmonic series, the value of n should be given by the keyboard.im confused import java.io.DataInputStream; class harmonic { public static void main(String args[]) { DataInputStream in=new DataInputStream(System.in); int n=0; int i; float sum=1; try { System.out.println("Enter an interger: "); n=Integer.parseInt(in.readLine()); } catch(Exception e){} for(i=1;i<=n;i++) { sum=sum+(1/i); } System.out.println("sum of harmonic series ="+sum); } } the answer i always get is 2

Welcome to JavaRanch! The result of dividing an int by an int is an int; after the first one, your division always comes out to zero, as fractional parts are truncated.

Instead do something like

By making one of the operands a float, the result becomes a float.