Answer:
Revisiting "Build a Tower"
Recall in the last section how we made Karel make a tower of tennis balls. We told Karel to move() and turnLeft() and putBall() until we had a tower. At the end of the program, Karel was still at the top of the tower, like as in the picture below.
Stuck at top
Suppose that now we want Karel to come back down from the top of the tower. The first thing we need to do is get Karel facing in the right direction. One way to do this is to tell Karel
turnLeft();
turnLeft();
turnLeft();
And then tell Karel to
move();
move();
move();
back to the bottom of the tower.
However, telling Karel to turnLeft() three times is not very readable. That's a lot of writing when all we really want is to tell Karel to "turn right."
Explanation:
Hopefully it would help.
<span>On the computer there are always issues. For a developer to sit all day in front of a google that always invents things and the flashy images that disrupt everything. Googling on facebook is also an issue. Youtube, everything that contain flashy image is quite disruptive. If you think about content, maybe googling is less inventive. In a way it's nicer to buy applications but if you finally think of building it, there are always nicer ways of spending time. I prefer to go to seaside when I can.</span>
