//Implementation of position class 
//Mandatory assignment 1 
//Course 02152 Concurrent Systems, DTU, Fall 2008

//Hans Henrik Løvengreen   Sep 24, 2008

public class Pos {

    public int row;       // Note: public
    public int col;

    public Pos(int i, int j) { row = i;  col = j; }

    public static boolean equal(Pos p1, Pos p2) {
        if (p1 == null || p2 == null) return false;
        return (p1.row == p2.row) && (p1.col == p2.col);
    }

    public Pos copy() {
        return new Pos(row, col);
    }

    public boolean equals(Pos p) {
        return Pos.equal(this,p);
    }

    public String toString() {
        return "("+row+","+col+")";
    }

}