....... a) Find the sum of 1 + 1/2 + 1/3+1/4 + 1/5 + 1/100. Save your program as SumFraction.java. b) Request a number in the range 3 to 20 and display a hollow square of stars with that number of rows and columns. Save your program as HollowStars.java. For example, entering the number 5 should display the following square. ***** * * * * *****