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POMaking something move in an array
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copied!<p>I have to make this program that will make a 12 by 12 array filled with different letters, then make something like a disease that spreads to the nearby cells of the same letter (it'll be randomly placed in the array). I've managed so far to make a class for the array and for the disease (to select a random char to be diseased) but I don't understand how I can make it see the nearby cells. In addition in the Disease the user can choose how many different letters(2-4). So far i've done: </p> <pre><code>import java.util.Random; public class Disease { public char D ; Random r = new Random(); public void forTwo() { Random r = new Random(); D = (char)(r.nextInt(2) + 'E'); } public void forThree() { Random r = new Random(); D = (char)(r.nextInt(3) + 'E'); } public void forFour() { Random r = new Random(); D = (char)(r.nextInt(4) + 'E'); } } </code></pre> <p>AND THE ARRAY:</p> <pre><code>import java.util.Arrays; import java.util.Random; public class PlayingArea { private String letters; public char[][] grid; public PlayingArea(String letters) { this.letters = letters; } public void populate() { int n = letters.length(); grid = new char[12][12]; Random r = new Random(); for (int j = 0; j < grid.length; j++) { for (int i = 0; i < grid.length; i++) { grid[i][j] = letters.charAt(r.nextInt(n)); } } } public String gridAsString() { StringBuilder sb = new StringBuilder(); for (char[] letterRow : grid) { sb.append(Arrays.toString(letterRow)).append('\n'); } return sb.toString(); } } </code></pre>

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