Compare Smallest and Largest 3-Digit Numbers using Logical Operators

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ineedhelpnow
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num is a 3-digit positive integer, such as 100, 989, or 523, but not 55, 1000, or -4.

For most direct readability, your expression should compare directly with the smallest and largest 3-digit number.

Code: 
if ( (num >= 100)<STUDENT CODE> ) { 
  ...
}

so far i came up with
Code: 
((num >= 100) && (?))
but i don't know how to write something that represents a 3 digit positive number?

Edit: nevermind. i figured it out to be && (num <= 999)
 
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by doing so you only eliminate those the three numbers though, right? while in fact what needs to be eliminated is any number that's not 3 digits and not positive.
 
ineedhelpnow said:
by doing so you only eliminate those the three numbers though, right? while in fact what needs to be eliminated is any number that's not 3 digits and not positive.

You're right!
I completely missed that condition.