运行会出现java.lang.ArrayIndexOutOfBoundsException，为什么?

Question

public class ArrayTest {
private static int BOARD_SIZE = 15;
private String[][] board;
public void initBoard(){
board = new String[BOARD_SIZE][BOARD_SIZE];
for(int i = 0; i < BOARD_SIZE; i++){
for(int j = 0; j < BOARD_SIZE; i++){
board[i][j] = "╋";
}
}
System.out.println(board[1][1]);
}
public static void main(String[] args) {
ArrayTest at = new ArrayTest();
at.initBoard();
}

}

Answer 1

 for(int i = 0; i < BOARD_SIZE; i++){
for(int j = 0; j < BOARD_SIZE; i++){
board[i][j] = "╋";
}
}

第二个for循环不应该是j++吗