}
return cellRepresentedBySymbol;
}public String getSymbol() {
return symbol;
}
}The application can print the state of the grid as a text array. Currently, the application prints our live
cells as an asterisk (*), and dead cells appear as a minus character (–). So a five-by-five grid containing
a single living cell in the center would look like this:
-----
--*--
-----Now users have asked for a change to the application—they want pluses (+) instead of stars! So we are
going to make a slight change to the Cell class method, and rewrite it as follows (the modifications
are in bold):
package com.wakaleo.gameoflife.domain;public enum Cell {
LIVE_CELL("+"), DEAD_CELL(".");private String symbol;private Cell(String symbol) {
this.symbol = symbol;
}@Override
public String toString() {
return symbol;
}static Cell fromSymbol(String symbol) {
Cell cellRepresentedBySymbol = null;
for (Cell cell : Cell.values()) {
if (cell.symbol.equals(symbol)) {
cellRepresentedBySymbol = cell;
break;
}
}
return cellRepresentedBySymbol;
}public String getSymbol() {
return symbol;
}
}