Compsci 100e, Spring 2011, Classwork 4

Name: __________________________   NetID: _____________

Name: __________________________   NetID: _____________

Name: __________________________   NetID: _____________

Problem: Skier Class

We will take a look at three related classes: Skier, SkiRace and RunSkiRace classes, to run a simulation on a ski race.

• Skier.java
• SkiRace.java
• RunSkiRace.java
• skidata.txt

  Problems

  1. First modify the Skier class, all methods are missing code. Start with the constructor, what needs to be initialized here? Then continue writing code for all the methods. You'll need to read the comment for each method to see its purpose. For the method generateRaceTime, This method should generate a random number from 15 to 26 and return it.

  2. Next we will modify the SkiRace class.
     1. Finish the constructor. Assume the scanner is ready to read from the file skidata.txt. This file has a skiers' name on a line by itself (one word), followed by the skier's number, an integer, on a line by itself; followed by other pairs of lines representing names of skier and skiers' numbers.

     2. Write the method skiRound that generates a random race time for each skier and changes their best time to this time if it is faster.

     3. Write the method printResults which prints the name, number and best time for each skier. If a skier has not skied yet, it's best time should be printed as 0.

  3. Last, we will modify the method RunSkiRace which contains the main method.
     1. Read in data from the file skidata.txt which contains the name of a skier (one word) and the number of a skier for many skiers. Note that you want to create a SkiRace. Also note, where have you done some of this work already?

     2. Run three rounds of a ski race (each skier skies three times).

     3. Print the results for each skier.

     4. Print a message "Best skier(s) is:" followed by the name(s) of the best skier(s).