A07-01-Arrays, Tuples and Records

ALEVEL-07-01-Arrays, Tuples and Records

by Keith Gage

Open Ended

What is an array?

Open Ended

What is an tuple?

Open Ended

What is an reco?

​Task

• ​Write pseudocode to store two variables; name1 stores Joe and name2 stores Jim

• ​Create an array called Name

• ​The first three elements of the array should be Moe, Mac and Mic

• ​Create a loop to print out the elements of the array

• ​Finish off by printing the first two variables that you created

​Task

Complete the truth table for the program that you created on the previous task.

​Each row represents another line or iteration through the code.

Task

Declare a variable called total

​Create a loop with the variable i that runs 3 times

Within the loop, add to an array mark which is input by the user

Add to the total variable, whatever is in mark array that for the position that we just added to.

After the loop, create an avg variable that is an average of the total variable and the number of times the loop ran for

​Print the avg variable

​Print the third element of the array mark

​Task

Complete the truth table for the inputs 60, 70 and 80.

Task

Complete Task 1 in Worksheet 1

Two Dimensional Arrays​

​

​Task

Draw out a one dimensional array of 4 elements

​Draw out a two dimensional array in a 2x2

​Task

Write pseudocode that writes the letter 'x' in to a two dimensional array using two loops

​In row 0, column 1, write the letter 'y'

Task

Complete the truth table​

​Task

​Worksheet 1

​Task 2

​Multi-dimensional Arrays and Tuples

​

Immutable​

Elements of the tuple cannot ba changed​

​Records

​

​Task

​Worksheet 1

​Task 3

Multiple Select

Font size (static)

• Array

• Tuple

• Record

• None of these

Multiple Select

Number of items may grow and shrink

• Array

• Tuple

• Record

• None of these

Multiple Select

All items must be of the same data type

• Array

• Tuple

• Record

• None of these

Multiple Select

Fixed number of items

• Array

• Tuple

• Record

• None of these

• All of these

Multiple Select

Can have more than one dimension

• Array

• Tuple

• Record

• None of these

• All of these

Multiple Select

Items may be different data types

• Array

• Tuple

• Record

• None of these

• All of these

Multiple Select

Can hold an item of the other two structures

• Array

• Tuple

• Record

• None of these

• All of these