Now, we have Colors and even instances if we need having a ColorManager. This is the time to store Colors in Rows. The Row class is a bit longer, but not too complex.
package packt.java9.by.example.mastermind; import java.util.Arrays; public class Row { final Color[] positions; private int matchedPositions; private int matchedColors;
A Row contains three fields. One is the positions array. Each element of the array is a Color. The matchedPositions is the number of positions that are matched and matchedColors is the number of colors that match a color in the hidden row but is not on the position as in the hidden row.
public static final Row none = new Row(Guesser.none);
The none is a constant that contains a special Row instance ...
