If statements DRILL

What is the primary purpose of using if statements in Karel's programming?

• To make Karel move faster

• To allow Karel to make decisions based on conditions

• To collect more tennis balls

• To create a maze

If Karel encounters a wall, which of the following code snippets correctly uses an if statement to respond?

• `if(frontIsBlocked()) {turnLeft();}`

• `if(turnLeft()) {move();}`

• `if(move()) {frontIsClear();}`

• `if(ballsPresent()) {move();}`

Which of the following conditions can be used to check if Karel is facing north?

• `if(facingWest()) {move();}`

• `if(facingSouth()) {turnRight();}`

• `if(facingEast()) {turnLeft();}`

• `if(facingNorth()) {move();}`

What happens if Karel executes a move command when the front is blocked?

• Karel will move through the wall

• Karel will crash and stop

• Karel will pick up a ball

• Karel will turn left

How can Karel check if there are no tennis balls present on the current corner?

• `if(frontIsBlocked()) {move();}`

• `if(ballsPresent()) {turnLeft();}`

• `if(noBallsPresent()) {move();}`

• `if(turnLeft()) {move();}`