Completed Program

public class HarmonicTester
{
  public static void main ( String[] args )
  {
    int term=1, lastTerm = 6;
    double sum = 0.0;
    
    while ( term <= lastTerm )
    {
       sum += 1.0/term;           // add the next term to sum
       term++ ;                   // increment term
    }
    
    System.out.println("Sum of 6 terms:" + sum ) ;
  }
}

You might wish to copy this program to your editor and run it. If you do, you will see something like:

C:\users>java HarmonicTester

Sum of 6 terms:2.4499999999999997

The inaccuracy of floating point resulted in the tail of 9's.