#20 Python Tutorial for Beginners | While Loop in Python

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In this lecture, we will learn:
Loops in Python language
What is the use of loops?
While loop and its implementation
Syntax of the while loop
Nested while loops in python
What is the 'end' parameter in python?
#1
We can execute a statement multiple times, by using the loops.
There are two types of a loop:
1. For loop
2. While loop
In the while loop, we need a counter to count the number of times, a statement can be executed.
We also have to put a condition in a while loop to repeat a statement until the given condition is satisfied.
The while Loop. With the while loop, we can execute a set of statements as long as a condition is true.
When the condition becomes false, the line immediately after the loop in the program is executed.
The value of the counter will increase or decrease until the condition gets false.
#2
Syntax of the while loop:-
counter variable
while (condition):
statements;
incrementation/ decrementation
So, there must be three things in a while loop:-
1. Initialization
2. Condition
3. Increment / Decrement
Nested while loops can also be used in Python.
Nested while loop simply means that a loop inside another loop.
#3
To print the values in the same, we use (end=" "). The value will not come in the new line after using it.
Passing the whitespace to the end parameter (end=' ') indicates that the end character has to be identified by whitespace and not a new line.
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