Green foot

Move via arrow key

Move via arrow key

If (Greenfoot.isKeyDown(“ ”)) ｛

setLocation( getX(), getY());

｝

Turn when at edge

If (isAtEdge()) {

Turn(180);

Move(10);

}

Make an object move randomly

move(Greenfoot.getRandomNumber(10));

turn(Greenfoot.getRandomNumber(180) -90);

Eat

If (isTouching(car.class)) {

getWorld().removeObject(this);

}

Play sound

Greenfoot.playSound(“pop.wav”)

Stop

Greenfoot.stop();

Counter

Counter counter = (Counter)getWorld().getObjects(Counter.class) .get(0);

counter.add(1);

Sensible size for a word

(100, 100, 4)

What is an assignment

Giving something a value

What is a selection

if statement

Example of a superclass

• World

• Actor

Example of an inherited class.

World —> ground

What is a parameter

It is anything inside the bracket

What is method

Public void act

Example of a private property

counter (LOWER case ONLY)

Examplm of a parameter

Amount