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I am trying to figure out an effective way of getting a random class from my project. There are nine different classes(ten including the startup), each one with a different behavior(which extend a declaratoid class that is used in the main function). I need to be able to have the function to run differently on each startup. What do I need to do? Edit:Thanks for the answer, but I am now running into another problem. I have to pass the result as the first parameter in another the function now.

Aaron Cottrill
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2 Answers2

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Create a factory method that gets a random number and creates an object based on that, in a switch:

public static YourInterfaceType createRandom() {
   Random r = new Random();
   switch(r.nextInt(10)) {
       case 1: return new FirstType();
       case 2: return new SecondType();
       // etc
       default: return new LastType();
   } 
}

Edit More exact definition of words. :)

Todd
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  • Technically speaking you're not creating classes. – aioobe Jan 17 '15 at 23:33
  • @aioobe I took the intent to mean instances of already defined classes. If OP provides more detail and this is off the mark, I'm happy to remove it. – Todd Jan 17 '15 at 23:34
  • He was referring to your statement `and creates a class based on that` - not true. It's creating an instance of an existing class, not creating a class. – gknicker Jan 17 '15 at 23:36
  • Thank you for the answer Todd. It looks exactly like what I need. – Aaron Cottrill Jan 18 '15 at 16:32
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you could generate a random number from 1 - 9 and use a switch statement where each case calls a different class

Lance
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