Exercise 5 – Reynolds again: overflow without exception

The 5th of Prashant’s 15 Exercises for Learning a new Programming Language builds directly onto the 4th:

Modify the above program such that it will ask for 'Do you want to calculate again (y/n),
if you say 'y', it'll again ask the parameters. If 'n', it'll exit. (Do while loop)

While running the program give value mu = 0. See what happens. Does it give 'DIVIDE BY ZERO' error?
Does it give 'Segmentation fault..core dump?'. How to handle this situation. Is there something built
in the language itself? (Exception Handling)

The first bit is easy, the second bit may be surprising.  First thing I’ll do is show you what happens when I run the program from last time with mu = 0.

Exercise 4 – Reynold’s Number: a basic class

The fourth of Prashant's exercises is:

Reynolds number is calculated using formula (D*v*rho)/mu Where D = Diameter, V= velocity, rho = density mu = viscosity
Write a program that will accept all values in appropriate units (Don't worry about unit conversion)
If number is < 2100, display Laminar flow,
If it’s between 2100 and 4000 display 'Transient flow' and
if more than '4000', display 'Turbulent Flow' (If, else, then...)

In working this solution I decided to declare a class to help in the calculation.  The solution also shows some details of reading input from the console.

More learning references

As I’ve been working on learning C# and .NET in the last couple of weeks, I’ve come across a number of useful references beyond the tutorials and other things I list in my second post.  They range from books, to posters, to podcasts, and I’ll briefly look at them in this post.

Exercise 3 - Collections and Sorting

The third exercise in 15 Exercises for Learning a new Programming Language is:

Accepting series of numbers, strings from keyboard and sorting them ascending, descending order.

The naive solution would be to build an array of entered strings/numbers and then write a method that will sort that array - a simple bubble sort would do.  Of course, .NET offers a better way…