Question

Which type of block could a programmer add to this code to abstract it and

make it shorter in length?
on left button pressed
call showfood
repeat 3 times
do
set background image to
pause see RS
set background image to
pause 500 RS
set background image to
pause see
set background image to
pause 500 S
repeat
tines
set background image to
pause (500-
set background image to
pause 500 S
set background image to
500-S
set background image to
call deleteFood
a variable
a loop
a conditional
a boolean operator
ans - a loop

Answer 1

A programmer would use a loop to abstract and shorten the given code by avoiding repetition and condensing the tasks that need to be executed multiple times, such as setting a background image followed by a pause.

Step-by-step explanation:

The question relates to a scenario where a programmer wants to abstract a piece of code to make it shorter. Looking at the given code, the best block to add is a loop. This will allow the programmer to condense repetitive tasks without rewriting the same lines of code multiple times. For example, if a background image needs to be set with a pause several times, this can be accomplished with a loop that iterates through these actions for a set number of times or until a certain condition is met.

To implement this, the programmer could use a for loop or a while loop, depending on the requirements. Loops are fundamental constructs in programming that enable more efficient and readable code by executing a block of code repeatedly as long as the loop's condition is true.

Answer 2

To abstract and shorten the code provided by the student, a programmer could add a loop, specifically a for loop or a repeat...times loop, which would allow the repetition of instructions without duplicating code lines, thus making the code more concise and maintainable.

Step-by-step explanation:

The student's code snippet indicates a sequence of instructions for setting background images and pausing, which is repeated multiple times. To abstract this code and make it shorter in length, a programmer can add a loop. Loops are used to repeat a block of code as many times as needed without having to write the same code over and over again. For example, in the given code, the programmer could use a loop to set the background images and pause instructions inside it. This would repeat those instructions for the specified number of times without having to manually duplicate the lines of code.

One way to implement this would be to determine the repeating pattern in the code and create a loop that executes those repeating lines. For instance, if the background images and pause times are repeating three times with the same values, a for loop or a repeat ... times loop could be used to execute those lines thrice. By doing this, we dramatically reduce the length of the code, making it more readable and easier to maintain.