Karel Programming Drill

What is the role of an if statement in Karel's programming logic?

• To instruct Karel to turn left

• To enable Karel to execute commands conditionally

• To repeat actions indefinitely

• To initialize Karel's starting position

In Karel programming, what does the function left_is_blocked() do?

• It checks if there's a wall to the left of Karel

• It makes Karel turn left

• It checks if Karel can move forward

• It makes Karel pick up a beeper

Which of the following is the correct syntax for an if statement in Karel programming?

• if front_is_clear() move();

• if (front_is_clear()) { move(); }

• if front_is_clear() { move(); }

• if (front_is_clear()) move();

What does the && (AND) operator do in an if statement?

• It combines two or more conditions, all of which must be true

• It checks if at least one condition is true

• It reverses a boolean condition

• It creates an else statement

How does an else statement differ from an if statement?

• It always executes, regardless of conditions

• It executes when the 'if condition' is true

• It executes when the 'if condition' is false

• It can only be used with numbers, not booleans

In the context of using && (AND) in an if statement, what is the effect of short-circuit evaluation?

• The evaluation stops if the first condition is false

• Both conditions are evaluated regardless of the first condition

• The program will always evaluate both conditions

• It ensures the program runs faster in all scenarios

What is the significance of the sequence of conditions in if/else if statements?

• The sequence is irrelevant; the computer will automatically optimize them

• Specific conditions should precede general ones to ensure proper evaluation

• General conditions should always be prioritized

• The sequence only impacts the execution speed of the program