Building Java Programs
Chapters 1-5
Lecture 13: Midterm Review
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Midterm Tips
 Bring Husky Card, know your section and TA
 Open book
 No notes, calculators, phones, digital textbooks (Kindle, etc)
 10 point penalty for violating this rule
 When instructor calls time, close your test
 10 point penalty for violating this rule
 Seriously…nothing you write in a few seconds is worth 10
points
 You must turn in a test to leave the room
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Midterm Tips
 The only acceptable abbreviations
 S.o.p (System.out.print)
 S.o.pln (System.out.println)
 S.o.pf (System.out.printf)
 A (ALWAYS)
 N (NEVER)
 S (SOMETIMES)

If you write A, N, or S and we can’t tell what it is, it is wrong
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Midterm Tips
 Test format
 5 mechanical questions (60 points total)
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Expressions
Parameter Mystery
If/Else Mystery
While Mystery
Assertions
 2 programming questions (15 points each)
 1 programming question (10 points)
 1 extra credit question (1 point)
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Midterm Tips
 Not covered:
 Graphics, DrawingPanel, Color, Random
 Expressions (question 1) resulting in boolean values
 No writing methods that return boolean values
 Programming Questions
 Not graded on style unless specifically mentioned in problem

If it works, full credit
 Method header is worth 1 or 2 points
 Look for words that suggest different concepts
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Repetition  loops
Conditions  if/else
 If we tell you not to do something in your solution…don’t do it
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isPowerOfTwo
 Write a static method isPowerOfTwo that takes an
integer n as an argument, and that returns true if n is a
power of two, and otherwise false. If n is zero or negative,
return false. Note that isPowerOfTwo(1) should
return true, since 20=1.
 Practice-It
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speedingTicket
 Write a method speedingTicket that decides whether a given driver should be given a
speeding ticket from a police officer. The method accepts three parameters: the driver's
car speed in miles per hour, as an integer; the current speed limit, as an integer; and
whether or not the police officer has eaten a donut today, as a true/false value. (A
police officer that has eaten a donut is happy, so he/she is less likely to give the driver
a ticket.) Your method should return true if the driver should receive a speeding ticket,
and false if not. A driver should be given a speeding ticket if any of the following
conditions are met:
 The officer has eaten a donut (true) and the driver's speed is at least 10 mph over
the speeding limit.
 The officer has not eaten a donut (false) and the driver's speed is at least 5 mph
over or under the limit.
 The driver is going 100 mph or faster, regardless of the speed limit or donut status.
 You may assume that the integers passed as parameters will be non-negative.
 Practice-It
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firstNotIncluded
 Write a method called firstNotIncluded that accepts two
Strings as parameters. It should return the index of the
first character in the second String that is not found in the
first String. It should return -1 if all of the characters in
the second String are found in the first String. Your
method should ignore case.
 For example, the call firstNotIncluded("aNt", "tan")
should return -1 because all of the letters in "tan" can be
found in "aNt" if we ignore case. The call
firstNotIncluded("section", "tonsils") should return
5 because 'l' is the first character in "tonsils" that
cannot be found in "section" and 'l' is at index 5 in
"tonsils".
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