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What Is A Loop

A loop in programming is a construct that allows for repeated execution of a block of code until a specified condition is met. In Python, there are two main types of loops: 'for loops' for a known number of iterations and 'while loops' for an unknown number of iterations based on a condition. Examples include using a 'for loop' to print 'Hello' five times and a 'while loop' to print 'Hello' until a counter exceeds five.

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10 views2 pages

What Is A Loop

A loop in programming is a construct that allows for repeated execution of a block of code until a specified condition is met. In Python, there are two main types of loops: 'for loops' for a known number of iterations and 'while loops' for an unknown number of iterations based on a condition. Examples include using a 'for loop' to print 'Hello' five times and a 'while loop' to print 'Hello' until a counter exceeds five.

Uploaded by

ishikaaggarwal8002
Copyright
© © All Rights Reserved
We take content rights seriously. If you suspect this is your content, claim it here.
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What is a Loop?

A loop is like telling the computer:

"Hey, repeat this thing again and again until I tell you to stop."

Types of Loops in Python

There are two main types:

1. for loop — when you know how many times you want to repeat something.

2. while loop — when you don't know how many times, and you want to keep going
while a condition is true.

Example 1: for loop (counting specific times)

Suppose you want to say "Hello" 5 times.

for i in range(5):

print("Hello")

What happens here?

• range(5) means numbers from 0 to 4 (5 times total)

• i takes each number in that range

• print("Hello") runs 5 times

while loop (repeat until condition is false)


i=1 # Start with 1

while i <= 5: # Keep looping while i is less than or equal to 5

print("Hello") # Print Hello

i=i+1 # Increase i by 1 each timeAdd 1 to i

Repeat until i is no longer less than or equal to 5


Loop with list

Print all the fruits in a basket.

fruits = ["apple", "banana", "cherry"]

for fruit in fruits:

print(fruit)

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