Just answer the F*#king question

boolean pointInRect(double x,double y,Coordinate [] co){
    int j=(co.length-1);
    boolean inFlag = false;
    for(int i=0;i<co.length;i++){
        if (((((double)co[i].getY() <= y) && 
           (y < (double)co[j].getY())) ||
           (((double)co[j].getY() <= y) && 
           (y < (double)co[i].getY()))) &&
           (x < ((double)co[j].getX() - (double)co[i].getX()) * 
           (y - (double)co[i].getY()) / ((double)co[j].getY() -
           (double)co[i].getY()) + (double)co[i].getX()))
                inFlag = !inFlag;
        j = i;
    }
    return inFlag;
}