Elevens lab: Activity 3 Ex 1 and 2

Lab

The Elevens Game
Screen Shot 2015-02-23 at 11.00.25 PM

Activity 3: Exercise 1
Use the file Shuffler.java, found in the Activity3 Starter Code, to implement the perfect shuffle and the efficient selection shuffle methods as described in the Exploration section of this activity. You will be shuffling arrays of integers.

Activity 3: Exercise 2
Shuffle.java also provides a main method that calls the shuffling methods. Execute the main method and inspect the output to see how well each shuffle method actually randomizes the array elements. You should execute main with different values of SHUFFLE_COUNT and VALUE_COUNT.

Teacher’s Comments:
1. If you run the two methods with VALUE_COUNT = 10, how often would there be duplicate results?
2. Can the number of duplicate results show the efficiency of the two different shuffles?

https://www.youtube.com/watch?v=hPNRtbbf-Jg