DrawFigure.java

public class DrawFigure extends JPanel {
    int type;
    int length, width, height, radius;

    public DrawFigure() {
        super();
        type = 5;
    }

    public DrawFigure(int myType, int myWidth, int myLength, int myHeight) { // Box and Rectangle
        super();
        type = myType;
        length = myLength;
        width = myWidth;
        height = myHeight;
    }

    public DrawFigure(int x, int y, int myType, int myWidth, int myLength, int myHeight) {
        super();
        type = myType;
        length = myLength;
        width = myWidth;
        height = myHeight;
    }


    public DrawFigure(int myType, int myRadius, int myHeight) {
        super();
        type = myType;
        radius = myRadius;
        height = myHeight;
    }

    public void paintComponent(Graphics g) {
        super.paintComponent(g);

        if (type == 1) { // Draw Rectangle
            g.drawRect(50,  110,  width,  length);

        } else if (type == 2) { // Draw Box
            g.draw3DRect(50, 110, length, width, true);

            /*
            g.setColor(Color.GREEN);
            g.fillRect(50, 110, width, height);

            g.setColor(Color.BLACK);
            g.drawLine(50, 110, length, height);
            */
            return;

        } else if(type == 3) { // Draw Circle
            // You will need one draw command to make a circle
            g.setColor(Color.RED);
            g.drawOval(50, 110, radius, radius);
            return;

        } else if(type == 4) { // Draw Cylinder
            g.setColor(Color.BLACK);
            g.drawOval(135,  65, radius, radius - radius / 2);

            // Base
            g.setColor(Color.RED);
            g.fillOval(135, 65 + height, radius, radius / 2);

            g.setColor(Color.BLACK);
            g.drawLine(135, 65 + height + (height /4), 135, 135);

            g.setColor(Color.BLACK);
            g.drawLine(135 + radius, 65 + height + (height /4), 135 + radius, 135);
            return;

        }
    }
}