Drawing Squares

package cz.czechitas.beginnerjava.homework.practice;

import org.teachingextensions.logo.Turtle;
import org.teachingextensions.logo.utils.ColorUtils.PenColor;

public class SquareShape {

    public static void main(String[] args) {
        SquareShape myApp = new SquareShape();
        myApp.run();
    }

    Turtle turtle = new Turtle();


    public void run() {
        turtle.show();
        turtle.setSpeed(8);
        turtle.setPenColor(PenColor.magenta);

        turtle.setX(300);
        turtle.setY(220);
        turtle.turn(45);

        int lenght;
        lenght = 15;

            int j;
            for (j = 0; j < 40; j++) {

            drawSquares(lenght);

            ///draw
            lenght = lenght + 10;

            }
    }

    public void drawSquares(int side) {
        int i;
        for (i = 0; i < 4; i++) {
        turtle.move(side);
        turtle.turn(90);
        }

        turtle.setPenUp();
        turtle.move(-5);
        turtle.turn(-90);
        turtle.move(5);
        turtle.turn(90);
        turtle.setPenDown();

    }

}