please help add header file
/**
* TODO add header file
*/
public static boolean comp(int[][] b, int z, Random rand) {
int x = findWinningMove(b, z);
if(x != -1) {
dropToken(x, b, z);
return true;
}
x = findWinningMove(b, (z + 1) % 2);
if(x != -1) {
dropToken(x, b, z);
return false;
}
do {
x = rand.nextInt(BOARD_WIDTH);
} while(b[BOARD_HEIGHT - 1][x] != -1);
dropToken(x, b, z);
return false;
}