programming constructs

Question 1

Sequence

Answer 1

Code is executed ​line-by-line​, from top to bottom.

Question 2

Branching

Answer 2

A certain block of code is run ​if a specific condition is met​, using IF statements. This is also known as ‘selection’.

Question 3

Iteration

Answer 3

A block of code is executed a ​certain number of times​ or​ while a condition is met​. Iteration uses FOR, WHILE or REPEAT UNTIL loops.

Question 4

iteration can be

count controlled-

Answer 4

for loop
~~~
for count in range (0,10):
print (“hi there”)
~~~

Question 5

iteration can be

condition controlled example

Answer 5

while loop
~~~
import random
randomNumber=random.randint(0,10)
player guess = input(“which number am i thinking of”)
while int (playerGuess) != int(randomNumber):
playerGuess=input (“which number am i thinking of?”)
print (“you win”)
~~~

Question 6

nest instruction example

while/if

Answer 6

import random
playerResponse=input ("would u like to play a game?")
while playerResponse == 'yes'
    randomNumber = random.randint(0,10)
    playerGuess == radnomNumber:
		if playerGuess == randomNumber:
		   print ("you win")
		elif int (playerGuess)> int (randomNumber):
		   print ("ur guess is too high")
	  elif int (playerGuess)< int (randomNumbeer):
		   print ("ur guess is too low")
			 
player response = input("would you like to play a game")

Question 7

IF statement code

Answer 7

import random 
randomNumber=random.randint(0,10)
if playerGuess== randomNumber:
        print ("you win")
print ("thanks for playing")

Question 8

IF ELSE statement code

Answer 8

import random
randomNumber = ra som.randint (0,10)
playerGuess= input (which number am i thinking of")
if playerGuess == random number:
    print ("you win")
else:
     print ("you lose")

Question 9

ELIF statement code

Answer 9

import random
randomNumber= random.randint (0,10)
playerGuess=input("which number am i thinking of")
if playerGuess == randomNumber:
      print("you win")
ELIF  int(playerGuess) > (randomNumber:
      print("too high")
ELIF int(playerGiess)< (randomNumber:
       print("too low:)
			 

Question 10

while loops

Answer 10

used to repeat an instruction(or sequence of instructions) and loop until a condition is met

condition controlled loop

Question 11

for loop

Answer 11

execute an instruction (or squence of instructions) a set.number of times
we creaste a variable called ‘count’ and set it to zero. every time the code inside the loop is executed count is incremented by 1.
when count reaches the value set by the programmer, the computer stops ececuted the code inside the loop and moves to the next instruction outside the loop.

count controlled

Question 12

nesting

Answer 12

when you place one construct within of another.