Flowcharts

Are you having trouble visualizing how your program works? Flowcharts are a great way to visualize the flow of your program and how the different parts of your program interact with each other. They are a great tool for planning out your program before you start coding. Although, if you don’t want to make one, that’s fine too as I don’t always make flowcharts for my programs.

Common Flowchart Symbols

Flowcharts use different symbols to represent different parts of your program. Here are some common flowchart symbols that you will encounter when creating flowcharts:

Symbol	Name	Function
	Terminal	Used to denote the beginning and ending of a flowchart.
	Flowlines	Used to show the next step in the flowchart.
	Preparation	Used for declaring and initializing variables and/or constants.
	Input/Output	Used for entering data and for displaying the results.
	Process	Represents a process or action that is performed in your program.
	Decision-Making	Used for branching. Shows which alternative will be followed by the flowchart.
	Connector	Used to connect a part of a flowchart to another without the need of very long flowlines.
	Subroutine	Represents a function or a subroutine in your program.

Flowchart Examples

1. Flowchart for a simple program that prints “Hello World”:

Sample Output:

HeLLo WoRld

2. Flowchart that will show a name and age:

Sample Output:

Name: John Doe
Age: 20

3. Flowchat where the user will input their age and display “You’re too young to drink” if the age is 17 or less, or print “You can drink” if the age is 18 or more:

Sample Output:

Enter your age: 17
You're too young to drink

4. Flowchart that has a function that will return the sum of two numbers:

Sample Output:

Enter the first number: 5
Enter the second number: 10
The sum is 15