Code compiling, but nothing printing out

[Ada Bradburry]

I've tried debugging on my own, but it's been 3 hours so I'm hoping a fresh pair of eyes can shed light on my (probably obvious) mistake. Any suggestions?

DRIVER:

public class Lab8Driver {
    public static void main (String[] args)
    {
        RightArrow right1=new RightArrow();
        right1.drawShapeOn();
        right1.setXAdj(10);
        right1.drawShapeOn();
        right1.setYAdj(5);
        right1.drawShapeOn();
        right1.setArrowDim(10, 15);
	right1.drawShapeOn();
        RightArrow right2 = new RightArrow(5,10,15,15);
        right2.drawShapeOn();
}
}

ABSTRACT CLASS:

public abstract class BasicShape implements BasicInterface
{
    private int xAdj;
    private int yAdj;
    public BasicShape()
    {
        xAdj=0;
        yAdj=0;
    }

    public BasicShape(int xAdj, int yAdj)
    {

    }

    public void setXAdj(int newXAdj)
    {
        xAdj = newXAdj;
    }

    public int getXAdj()
    {
        return xAdj;
    }

    public void setYAdj(int newYAdj)
    {
        yAdj = newYAdj;
    }

    public int getYAdj()
    {
        return yAdj;
    }

    public void drawShapeOn()
    {
        for (int count = 0; count < yAdj; count++)
            System.out.println();
        drawShape();
    }

    public void drawShape()
    {
        for (int count = 0; count < yAdj; count++)
            System.out.print(' ');
        //System.out.println('*');
        //drawArrow();
    }

}

   

BASIC INTERFACE:

public interface BasicInterface
{
    /**
     * sets x coordinate for the shape
     */
    public void setXAdj(int newXAdj);
    /**
     * returns x coordinate for the shape
     */
    public int getXAdj();
     /**
     * sets y coordinate for the shape
     */
    public void setYAdj(int newYAdj);
    /**
     * returns y coordinate for the shape
     */
    public int getYAdj();
    /**
     * draws shape at lineNumber lines down from current line
     */
    public void drawShapeOn();
    /**
     * draws shape at the current line
     */
    public void drawShape();
}

ARROW INTERFACE:

public interface ArrowInterface extends BasicInterface
{
    /**
     * sets arrow dimensions
     */
    public void setArrowDim(int newTail, int newWidth);
}

ARROW:

public class RightArrow extends BasicShape 
implements ArrowInterface
{
    private int tail;
    private int width;
    public void setArrowDim(int newTail, int newWidth)
    {

    }

    public RightArrow()
    {
        super();
        tail = 5;
        width = 4;
    }

    public RightArrow (int xAdj, int yAdj, int tail, int width)
    {
        super(xAdj, yAdj);
        this.tail = tail;
        this.width = width;
    }

    public void set (int newTail, int newWidth)
    {
        tail = newTail;
        width = newWidth;
    }
   
    public void drawFiller(int line)//inside spaces of arrow head
    {
        for(int i=line-2; i>0; i--)
            System.out.print(" ");
    }

    public void drawTail(int line)//tail of arrow
    {
        if(line==width/2+1)
        {
            for(int i=0; i<this.tail; i++)
                System.out.print("*");
        }
        else
        {
            for(int i=0; i<this.tail; i++)
                System.out.print(" ");
        }
    }

    public void drawSpaces()//spaces around tail
    {
        for(int i=0; i<super.getXAdj(); i++)
            System.out.print(" ");
    }

    public void drawArrow()
    {
        int line = 1;
        for(int i=0; i<width; i++)
        {
            if (line==1)
            {
                this.drawSpaces();
                this.drawTail(line);
                System.out.print("*");
            }
            else if (line==width/2+1){

                this.drawSpaces();
                this.drawTail(line);
                System.out.print("*");
                this.drawFiller(line);
                System.out.println("*");
            }
            else
            {
                this.drawSpaces();
                this.drawTail(line);
                System.out.print("*");
                System.out.println("  ");
                System.out.print("*");
            }
        }
}
}

[Paweł Baczyński]

Your method drawShapeOn is printing spaces and newlines.
What else did you expect? What is your desired output?
ItDoesntWorkIsUseless <- click this

[Ulf Dittmer]

Which method do you think should be printing something? From a cursory glance it would seem that BasicShape.drawShapeOn and BasicShape.drawShape should be printing a bunch of line breaks and spaces. I don't see the methods in RightArrow (which would print non-blank characters) being called anywhere.

Did you mean for RightArrow to override the drawShape and/or drawShapeOn methods?