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BoardPrinter.java
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BoardPrinter.java
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/**
* Helper method to print the board
*/
public final class BoardPrinter {
public static void print(boolean[][] board){
if (board.length < 1 || board.length != board[0].length){
throw new IllegalArgumentException("Invalid board");
}
String separator = createSeparator(board.length);
System.out.println(separator);
for (int i =0; i < board.length; i++){
printLine(board, i);
System.out.println(separator);
}
}
private static String createSeparator(int length) {
String separatorPerColumn ="----";
StringBuilder sb = new StringBuilder("-");
for (int i =0; i < length; i++){
sb.append(separatorPerColumn);
}
return sb.toString();
}
private static void printLine(boolean[][] board, int row) {
System.out.printf("%s", "|");
for (int col=0; col < board[row].length; col++){
if (board[row][col] == true){
System.out.printf("%2s", "D");
} else {
System.out.printf("%2s", " ");
}
System.out.printf("%2s", "|");
}
System.out.println();
}
public static void main(String[] args) {
boolean[][] board = new boolean[5][5];
board[0][0] = true;
board[1][1] = true;
board[2][2] = true;
print(board);
}
}