Chess960V1.java

/*
Chess960V1.java     MrG     2012.0227
purpose:    randomly find one 960 Fischer Random Chess Board
required file:  Chess960V1.java             main class
translator: javac Chess960V1.java
interpreter:    java Chess960V1
*/

//imported classes
import java.util.Random;

//main class
public class Chess960V1
{
    public static void main(String[] args)
    {
        String[] whitePieces = new String[8];
        darkBishop(whitePieces);
        lightBishop(whitePieces);
        setQueen(whitePieces);
        setKnight(whitePieces);
        setKnight(whitePieces);
        doLastStep(whitePieces);
        System.out.println(toString(whitePieces));
    }

    public static void doLastStep(String[] wP)
    {
        int pos = 0;
        while(wP[pos]!=null)
        {
            pos++;
        }
        wP[pos]="R";
        while(wP[pos]!=null)
        {
            pos++;
        }
        wP[pos]="K";
        while(wP[pos]!=null)
        {
            pos++;
        }
        wP[pos]="R";
    }

    public static void setQueen(String[] wP)
    {
        int pos;
        Random die = new Random();
        do
        {
            pos=die.nextInt(8);
        }
        while(wP[pos]!=null);
        wP[pos]="Q";
    }

    public static void setKnight(String[] wP)
    {
        int pos;
        Random die = new Random();
        do
        {
            pos=die.nextInt(8);
        }
        while(wP[pos]!=null);
        wP[pos]="N";
    }

    public static void darkBishop(String[] wP)
    {
        Random die = new Random();
        wP[die.nextInt(4)*2]="B";
    }

    public static void lightBishop(String[] wP)
    {
        Random die = new Random();
        wP[1+die.nextInt(4)*2]="B";
    }

    public static String toString(String[] wP)
    {
        String temp = "";
        for(int k=0; k<wP.length; k++)
        {
            temp += wP[k];
        }
        return temp;
    }
}