This week's book giveaway is in the OO, Patterns, UML and Refactoring forum.
We're giving away four copies of Refactoring for Software Design Smells: Managing Technical Debt and have Girish Suryanarayana, Ganesh Samarthyam & Tushar Sharma on-line!
See this thread for details.
The moose likes Programmer Certification (SCJP/OCPJP) and the fly likes Rounding Big Moose Saloon
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Drew Lane
Ranch Hand

Joined: May 13, 2001
Posts: 296
OK, I thought this would be an easy question, but I got it wrong:
What is the value of the following expression:
Math.round(Math.random() + 2.50001);
Answer: 3
Isn't it possible the value of Math.random() could be 0.99999 ?
If it was then the value of the expression would be 3.5 which would be rounded to 4, no?
Junilu Lacar

Joined: Feb 26, 2001
Posts: 6287

Drew, if this is coming from the RHE mock exam, the answer given is wrong. You are right about round() and random(), so the correct answer to that question would be "impossible to say"

Junilu - [How to Ask Questions] [How to Answer Questions]
Drew Lane
Ranch Hand

Joined: May 13, 2001
Posts: 296
I agree. Here's the link:
subject: Rounding
It's not a secret anymore!