Android Open Source - candymem Random Service

From Project

Back to project page candymem.

License

The source code is released under:

GNU General Public License

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Java Source Code

package se.tube42.lib.service;
//w w w . j  a  v  a 2  s.  c o  m
import java.util.*;

public final class RandomService
{

    private final static Random r = new Random();

    public static boolean flipCoin()
    {
        return r.nextBoolean();
    }
    public static float get()
    {
        return r.nextFloat();
    }

    public static float get(float min, float max)
    {
        float d = max - min;
        return min + d * get();
    }

    public static int getInt(int max)
    {
        return r.nextInt(max);
    }

    public static int getFromDistribution(int [] dist)
    {
        int max = 0;
        for(int i = 0; i < dist.length; i++)
            max += dist[i];

        if(max <= 0) return 0; // EROR

        int r = getInt(max);

        for(int i = 0; i < dist.length; i++) {
            r -= dist[i];

            if(r < 0)
                return i;
        }

        System.out.println("ERROR!\n");
        return 0; // ERROR
    }
}

Java Source Code List