Arrays and lists in Intro to Computing - Flowchart & Logic Diagram

Process Overview

Arrays and lists are ways to store many items together in order. They help us keep things organized, like a row of mailboxes or a shopping list.

Flowchart

Create empty array/list

Yes No↓

Add item to array/list

Yes No↓

Use or access items

This flowchart shows how we create an array or list, add items one by one, and then use or access those items.

Step-by-Step Trace - 6 Steps

Step 1: Start and create an empty list

Step 2: Add first item 'apple'

Step 3: Add second item 'banana'

Step 4: Add third item 'cherry'

Step 5: No more items to add, access the second item

Step 6: End process

Diagram

Index:  0       1        2
       +-------+-------+--------+
List: | apple | banana| cherry |
       +-------+-------+--------+

This diagram shows a list with three items. Each item has a position number called an index, starting at 0.

Flowchart Quiz - 3 Questions

What does the number 1 represent in the list diagram?

A The position of 'banana' in the list

B The number of items in the list

C The size of each item

D The total length of the list

Key Result

Arrays and lists store items in order, each with a position number starting at zero, making it easy to add and find items.