CS 106A: Programming Methodology (Java), Spring 2016

Suggested optional pre-section practice problem:

1. a variation of Exercise 11.2 (p451) - "In statistics, a collection of data values is ..."

   The book says to test your method by incorporating it into a GymnasticsJudge program; you don't need to do that. If you want to test your code, download our ZIP file below.

• section05-presection.zip

Suggested optional pre-section practice problem:

1. Exercise 8.6 (p287) - "A palindrome is a word that ..." Just write the method itself; you don't need to write the test program mentioned in the problem statement. Consider any one-letter or empty string to be a palindrome. If you want to extend the code to work for full sentences with spaces and punctuation as described in Exercise 8.7, feel free to do so, but that is up to you.

• section04-presection.zip

Suggested optional pre-section practice problem:

1. Exercise 5.4 (p172) - "Write a method countDigits(n) that ..." (See book Figure 4-6 for a helpful example to get you started. Can you write a version that handles negative numbers?)

• section03-presection.zip

Suggested optional pre-section practice problem:

1. a variation of Exercise 4.4 (p128) - "Write a program that displays the integers between ..."

   Write a variation of the book's exercise where you print all of the numbers in the range, separated by spaces. Use a loop to print the numbers. But for multiples of three print "Fizz" instead of the number, and for the multiples of five print "Buzz". For numbers which are multiples of both three and five print "FizzBuzz". The output would be:

   1 2 Fizz 4 Buzz Fizz 7 8 Fizz Buzz 11 Fizz 13 14 FizzBuzz 16 17 Fizz 19 Buzz
   Fizz 22 23 Fizz Buzz 26 Fizz 28 29 FizzBuzz 31 32 Fizz 34 Buzz Fizz 37 38 Fizz
   Buzz 41 Fizz 43 44 FizzBuzz 46 47 Fizz 49 Buzz Fizz 52 53 Fizz Buzz 56 Fizz 58
   59 FizzBuzz 61 62 Fizz 64 Buzz Fizz 67 68 Fizz Buzz 71 Fizz 73 74 FizzBuzz 76
   77 Fizz 79 Buzz Fizz 82 83 Fizz Buzz 86 Fizz 88 89 FizzBuzz 91 92 Fizz 94 Buzz
   Fizz 97 98 Fizz Buzz 
   

   ("FizzBuzz" is a commonly known problem. Many companies actually ask their interview candidates to solve it, and surprisingly a large number of applicants are unable to do so. It's considered a good "weed-out" problem because anybody with a CS degree ought to know how to solve a problem like this.)

• section02-presection.zip

Suggested optional pre-section practice problem: If you want to try a practice exercise to help you be ready for section, check out this one. Once again, this is optional and not required; you do not have to do it and receive no points for doing it.

1. Review question 3.7 (p90) - "By applying the appropriate precedence rules, calculate the result of each of the following expressions: ..." Solve all of parts a) - d). Show your work by writing out each expression part that is evaluated in order. For example:

   1 + 2 * 3 + 4
       -----
   1 +   6   + 4
   -------
      7      + 4
      ----------
          11
   

(The "Section 1 Handout" problems from the PDF document above are the problems that you'll work on in your section this week with the section leader. You don't need to work on any of those before your section, though you can optionally read them ahead of time if you like.)

• section01-code.zip