Enquiries for if-else statement structure

Question

I want to design an choice program for user. I have designed something like this, there is no last "else" because ans D is to exit the loop without printing anything.
do
{
If ( ans == A)
{}
else if ( ans == B)
{}
else if (ans == C)
{}
} while ( ans != D);
Is my design very weird ? Or there is any suggestion in terms of design. (please take note option D is just exit)

Answer 1

No, it just fine if you use equals() method
https://www.sololearn.com/Discuss/3016658/?ref=app
https://www.sololearn.com/discuss/3016143/?ref=app

Answer 2

Use switch cases..