Welcome to DrJava.  Working directory is C:\Users\Classroom\Desktop
> World w = new World(300, 300)
> Turtle t1 = new Turtle(w)
> t1.turnRight()
> Turtle t2 = t1
> t2.forward()
> t1.turnLeft()
> t2.forward()
> t1.turnLeft()
> t1.turn(45)
> t2.turn(-45)
> t2.turn(-45)
> t1.turn(45)
> 
> t3 = new Turtle(w)
Static Error: Undefined name 't3'
> Turtle t3 = new Turtle(w)
> t3.forward(50)
> new Turtle(w)
No name turtle at 150, 150 heading 0.0.
> t3 = t2
> t3.forward()
> World w2 = new World(200, 200)
> Turtle t4 = new Turtle(w2)
> t3 = t4
> t4.forward()
> t3.turnRight()
> t3.turnRight()
> t4.forward()
> t1.turn(-45)
> t1.forward(400)
> t1.turn(-45)
> t1.turn(-45)
> t1.turn(-45)
> t1.turn(-45)
> t1.turn(-45)
> t1.turn(-45)
> t1.turn(-45)
> t1.turn(-45)
> Turtle t6 = null
> 
> t3.forward()
> t3.turn(180)
> t3.turnRight()
> t3.forward(50)
> t3.turnLeft()
> t3.penUp()
> t3.forward(100)
> t3.penDown()
> t3.forward(100)
>