ListNumberGenerator

java.lang.Object

org.cis1200.ListNumberGenerator

All Implemented Interfaces:: NumberGenerator

public class ListNumberGenerator extends Object implements NumberGenerator

Produces a deterministic sequence of numbers. This class is implemented for you.

Constructor Summary

Constructors

Constructor

Description

ListNumberGenerator(int[] arr)

Creates a ListNumberGenerator which generates numbers based off of an array of possible integers.

ListNumberGenerator(List<Integer> list)

Creates a ListNumberGenerator which generates numbers based off of a list of possible integers.
Method Summary

Modifier and Type

Method

Description

int

next()

Returns the next integer available in the list.

int

next(int bound)

Returns the next integer available in the list that is less than the specified bound.

String

toString()

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

Constructor Details
- ListNumberGenerator
  
  public ListNumberGenerator(List<Integer> list)
  
  Creates a ListNumberGenerator which generates numbers based off of a list of possible integers.
  
  Parameters:
  
  list - - a list of integers to step through and output in the generator.
  
  Throws:
  
  IllegalArgumentException - - when list is null, of size 0, or when any Integer in the list is null.
- ListNumberGenerator
  
  public ListNumberGenerator(int[] arr)
  
  Creates a ListNumberGenerator which generates numbers based off of an array of possible integers.
  
  Parameters:
  
  arr - - an array of integers to step through and output in the generator.
  
  Throws:
  
  IllegalArgumentException - - when arr is null or empty
Method Details
- next
  
  public int next()
  
  Returns the next integer available in the list. Start over if the last number is reached.
  
  Returns:
  
  a number from the list.
- next
  
  public int next(int bound)
  
  Returns the next integer available in the list that is less than the specified bound.
  
  Specified by:
  
  next in interface NumberGenerator
  
  Parameters:
  
  bound - - the max value that can be returned by this call to next.
  
  Returns:
  
  a number between 0 and bound (inclusive)
- toString
  
  public String toString()
  
  Overrides:
  
  toString in class Object