public boolean isClear(int index)
{
    if(index < 32){
        if( (bits & 0x00000001<<index) == 0)
            return true;
        else
            return false;
    }
    else
        return true;
}

public boolean isSet(int index)
{
    if(index < 32){
        if( (bits & 0x00000001<<index) != 0)
            return true;
        else
            return false;
    }
    else
        return false;
}