Page 300 - AI Ver 1.0 Class 9
P. 300
The if Statement
We use the if statement to do conditional programming. Condition with the if statement can also be written
within the parenthesis ( ). However, it is optional to use parenthesis. It is must to specify colon (:) after writing a
condition with the if statement. The number of statements (also called as a Block) written within if statement
can be of any size. A statement or block of statement will be executed only when the condition is True. If the
condition is False then nothing happens.
Syntax of the if statement:
if (condition):
statements
Where,
• if is a keyword.
• condition can be any relational or logical expression.
• statements are always indented can be single or a block.
Program 1: To input the percentage of a student and award "Certificate of Excellence" if the student gets more
than 80%.
Algorithm Flowchart
Start START
Input Percent
if Percent is more than 80 then Input Percent
Display "Congratulations"
Display "Your are awarded Certificate of Excellence"
Stop Is No
Percent > 80?
Source Code:
percent=int(input("Enter your percentage :") Yes
if percent>80: Display "Congratulations"
Display "Yes are awarded..."
print("CONGRATULATIONS")
print("You are awarded– 'Certificate of Excellence'")
STOP
Output:
Enter your percentage :89
CONGRATULATIONS
You are awarded– 'Certificate of Excellence'
298 Touchpad Artificial Intelligence-IX

