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Ensure that only one flow line should enter a decision symbol, but two flow lines should leave the
decision box.
Ensure that the flowchart has a logical start and end.

ADVANTAGES OF A FLOWCHART

Flowcharts provide the following advantages:

Programmers can analyse the problem in detail.
Programmers can easily understand the logic.
Ideas and solutions can be communicated easily and clearly.

Once the flowchart is prepared, it provides a clear blueprint of the coding process for the
programmer.

DRAWING A FLOWCHART

Let us now learn how to draw a flowchart.

MAKING A CUP OF TEA CALCULATING THE AREA OF A CIRCLE

Start Start

Read Kettle, Teabags, Read r (radius)
water, milk, sugar and cup

Boil the water in the kettle Calculate
Area = 3.14 × r × r

Pour the boiling water into the cup

Print Area
Add milk, sugar and put a
teabag in the cup
Stop

Stir the tea

Tea is ready

Stop

FINDING THE SMALLER NUMBER BETWEEN TWO NUMBERS

There comes a situation where we need to make a decision based on certain conditions.

Algorithm, Flowchart and Mind Maps 67