• Post Reply Bookmark Topic Watch Topic
  • New Topic
programming forums Java Mobile Certification Databases Caching Books Engineering Micro Controllers OS Languages Paradigms IDEs Build Tools Frameworks Application Servers Open Source This Site Careers Other Pie Elite all forums
this forum made possible by our volunteer staff, including ...
Marshals:
  • Campbell Ritchie
  • Jeanne Boyarsky
  • Ron McLeod
  • Paul Clapham
  • Liutauras Vilda
Sheriffs:
  • paul wheaton
  • Rob Spoor
  • Devaka Cooray
Saloon Keepers:
  • Stephan van Hulst
  • Tim Holloway
  • Carey Brown
  • Frits Walraven
  • Tim Moores
Bartenders:
  • Mikalai Zaikin

Keep track of how many times each number comes up (Dice).

 
Ranch Hand
Posts: 36
  • Mark post as helpful
  • send pies
    Number of slices to send:
    Optional 'thank-you' note:
  • Quote
  • Report post to moderator
Hi everyone,

I apologize in advance for the length. This is such a nit-picky question I'm rolling my eyes at it as I'm writing it.

The directions for this assignment are:


1. Create a class called Dice to represent a single cube. It should have a method called roll() that randomly selects a number from 1 to 6 for the value of the dice.
2. Create a test main method for the Dice class that creates a Dice, and rolls it many times.
3. Can you keep track of how many times each number comes up? Describe how in a three or fewer sentences, or implement it in your main program.
4. Describe which number comes up the most often in a sentence. Back your answer up with your statistics if possible.


The pieces I've highlighted in red are what I'm having trouble with. I've created a Dice program as follows.




My issues:

1) The output for the Dice program is showing 10,000 random #'s between 1 and 6.

(I.e. --

run:
3
1
6
4
3
2..............)

Shouldn't it look something like "Dice with 6 sides is showing 1, Dice with 6 sides is showing 4, .....etc.)?


And 2)

The only way I can figure out how to get instruction #3 correct is by adding a separate Dice Statistics class to my program, which I did here:




This gives me the output I need, but clearly the instructor wants this all lumped into the main Dice program. Am I right? Any help would be greatly appreciated.

Thanks
 
Marshal
Posts: 79177
377
  • Mark post as helpful
  • send pies
    Number of slices to send:
    Optional 'thank-you' note:
  • Quote
  • Report post to moderator
So, you have a roll() method. Have you got a DiceStatistics class with a count method? I think the class you have written looks too complicated, and you should think again. These things are actually simpler than you think, but having a computer screen in your vision obscures things.

Start by turning your computer off. Do some counting on a piece of paper. The sort of counting where you write |||| for 4 then a line across them for 5. Then get another sheet of paper a pencil and (important) an eraser, and write down how you counted the numbers. If you have difficulty, try counting with a real die. When you have got how you do that process written down really simply, you will find it easy to turn to code.
I think your stats class will require some data structure to do the counting, a count(int i) method and a toString() method which returns a report of counting to date.
 
reply
    Bookmark Topic Watch Topic
  • New Topic