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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.
112 Trackpad (V2.1)-VI

