Flowcharts

flowchart

Flowcharts are written with program flow from the top of a page to the bottom.  Each command is placed in a box of the appropriate shape, and arrows are used to direct program flow.  The following  shapes are often used in flowcharts:

Example 1: Print 1 to 20:

Algorithm:

Step 1: Initialize X as 0,

Step 2: Increment X by 1,

Step 3: Print X,

Step 4: If X is less than 20 then go back to step 2.

Flowchart: