Re: question about classes and instance variables

From:
Brandon McCombs <none@none.com>
Newsgroups:
comp.lang.java.programmer
Date:
Sun, 01 Apr 2007 03:51:02 -0400
Message-ID:
<460f6489$0$24693$4c368faf@roadrunner.com>
jt wrote:

Back at the chess thing again... either my brain is dead or there's
something horribly missing in my self-education.

I start off by creating 2 enums

package commonshit;

public enum Color {
    BLACK, WHITE
}

public class foo {
    String x;
    String y;
    Integer a;
    Integer b;
    boolean c;
    public foo(String x, String y, Integer a, Integer b, Integer c) {
        x = x;
        y = y;
        a = a;
        b = b;
        c = true;
    }
}

Now lets suppose that I have another class called... oh say bar

public class bar {
    private String m;
    private foo qr;


You don't have to put all your foo instances on separate lines.

    public bar(String x) {

        this.x = x;
        this.qr = new foo(PieceRank.QR, teamColor, startingRow, 0);
        this.qk = new ChessPiece(PieceRank.QK, teamColor, startingRow, 1);
        this.qb = new ChessPiece(PieceRank.QB, teamColor, startingRow, 2);
        this.q = new ChessPiece(PieceRank.Q, teamColor, startingRow, 3);
        this.k = new ChessPiece(PieceRank.K, teamColor, startingRow, 4);
        this.kb = new ChessPiece(PieceRank.KB, teamColor, startingRow, 5);
        this.kk = new ChessPiece(PieceRank.KK, teamColor, startingRow, 6);
        this.kr = new ChessPiece(PieceRank.KR, teamColor, startingRow, 7);
        this.qrp = new ChessPiece(PieceRank.QRP, teamColor, finishRow, 0);
        this.qkp = new ChessPiece(PieceRank.QKP, teamColor, finishRow, 1);
        this.qbp = new ChessPiece(PieceRank.QBP, teamColor, finishRow, 2);
        this.qp = new ChessPiece(PieceRank.QP, teamColor, finishRow, 3);
        this.kp = new ChessPiece(PieceRank.KP, teamColor, finishRow, 4);
        this.kbp = new ChessPiece(PieceRank.KBP, teamColor, finishRow, 5);
        this.kkp = new ChessPiece(PieceRank.KKP, teamColor, finishRow, 6);
        this.krp = new ChessPiece(PieceRank.KRP, teamColor, finishRow, 7);
    }
    public void displayAPiece(ChessPiece piece)
    {
        System.out.print(piece.name);
        System.out.print(piece.color + " " );
        System.out.print(piece.yPos + " " );
        System.out.println(piece.alive);
    }

}


So what is your question?

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