Question

C# Question

You've landed a job with a brokerage firm (Dewy, Hewy and Howe, Inc.). You've been asked to review the code that determines the discount on trades. The company wants to charge a 5% fee on transactions of more than 1 million dollars, 7% on transactions between $999,999.99 and %500,000, 10% on transactions less than $50,000 and 8% on all other transactions.

Does anyone know how to go about using a switch statement to create this? I believe I have done this correctly with the if-else statement, but am struggling with the switch statement.

Answer 1

I'm not sure how to create this without millions of lines of code for the switch statement, but the instructor said it can be done.

Answer 2

if (transaction > 999999.99)
{
Fee = transaction * 0.05;
}
else if (transaction > 500000.00)
{
Fee = transaction * 0.07;
}
else if (transaction < 50000.00)
{
Fee = transaction* 0.10;
}
else
{
Fee = transaction * 0.08;
}


This is my current if-else code. I'm stuck after this.

Answer 3

Your if statement is good, for your switch you will need to set a variable and then set a case for each possible value, very cumbersome. The alternative will be to use your if to set a variable to one of 4 possible values and then switch. So far as I know you cannot switch a conditional expression.

Answer 4

Thanks for the response. This is where I get confused. So I use my previous code, and create four different variables to store the ranges in the if statement in? Then, I somehow use it in the switch statement? Sorry, I'm pretty poor at programming.

Answer 5

Yes, you could create an int variable 'rate' and inside your if, rather than having Fee = transaction * 0.05;, you have rate = 1; etc. etc.
Then you will switch rate and put a case for 1 through 4.

Answer 6

You could also make rate a char, it is not really significant which you choose.

Answer 7

Okay, thank you. One sec, lemme see if I got this correct.

Answer 8

if (transaction > 999999.99)
{
rate = 1;
}
else if (transaction > 500000.00)
{
rate = 2;
}
else if (transaction < 50000.00)
{
rate = 3;
}
else
{
rate = 4;
}

Answer 9

something like this?

Answer 10

Exactly.

Answer 11

Hmmm I see. That was tricky at first.Thank you!

Answer 12

You're welcome.