public class RepairDroid
{
    public RepairDroid (boolean debug)
    {
        _debug = debug;
    }

    private boolean _debug;
}
public class RepairDroid
{
    public RepairDroid (boolean debug)
    {
        _debug = debug;
    }

    public void printGrid ()
    {
        
    }

    private boolean _debug;
}
Update RepairDroid.java