From: "Saved by Windows Internet Explorer 8"
Subject:
Date: Thu, 12 May 2011 22:16:12 -0700
MIME-Version: 1.0
Content-Type: text/html;
charset="utf-8"
Content-Transfer-Encoding: quoted-printable
Content-Location: http://www.ics.uci.edu/~ehenniga/ics22/projects/project5/MockRandom.java
X-MimeOLE: Produced By Microsoft MimeOLE V6.1.7600.16776
=EF=BB=BF
// MockRandom.java
//
// ICS 22 / CSE 22 Winter 2011
// Project #5: Signal to Noise
//
// This is a "mock object" that behaves sort of like a Random object =
from the
// Java library, except that it returns a predetermined sequence of =
numbers,
// rather than choosing the numbers randomly. While this wouldn't be a =
good
// thing to use in our random sentence generation program, it's a great =
help
// in testing, because it allows us to pass a "mock" random number =
generator
// into the sentence generation algorithm which will ultimately give us =
output
// that we can predict.
//
// An example of using MockRandom follows:
//
// ArrayList<Integer> a =3D new ArrayList<Integer>();
// a.add(5);
// a.add(7);
// a.add(9);
//
// // This MockRandom will generate the numbers 5, 7, 9 in sequence,
// // repeating, forever.
// MockRandom mr =3D new MockRandom(a);
//
// // The output here will be 5, 7, 9, 5, 7, 9, 5.
// for (int i =3D 0; i < 7; i++)
// System.out.println(mr.nextInt());
import java.util.ArrayList;
import java.util.Random;
public class MockRandom extends Random
{
private ArrayList<Integer> results;
private int nextNum;
public MockRandom(ArrayList<Integer> results)
{
this.results =3D results;
nextNum =3D 0;
}
=09
public int nextInt()
{
int nextResult =3D Math.abs(results.get(nextNum));
nextNum =3D (nextNum + 1) % results.size();
return nextResult;
}
=09
=09
public int nextInt(int n)
{
return Math.abs(nextInt()) % n;
}
}