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Where do we use while loop and for loop in Python?

Where do we use while loop and for loop in Python?

for loops is used when you have definite itteration (the number of iterations is known). while loop is an indefinite itteration that is used when a loop repeats unkown number of times and end when some condition is met.

What is the difference between a for and while loop in Python?

For loop allows a programmer to execute a sequence of statements several times, it abbreviates the code which helps to manage loop variables. While loop allows a programmer to repeat a single statement or a group of statements for the TRUE condition.

How do you use a while loop in a for loop?

Use a for loop when you know the loop should execute n times. Use a while loop for reading a file into a variable. Use a while loop when asking for user input. Use a while loop when the increment value is nonstandard.

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Should I use for or while loops?

In general, you should use a for loop when you know how many times the loop should run. If you want the loop to break based on a condition other than the number of times it runs, you should use a while loop.

How are for and while loops different?

The difference between for loop and while loop is that in for loop the number of iterations to be done is already known and is used to obtain a certain result whereas in while loop the command runs until a certain condition is reached and the statement is proved to be false.

What is the difference between for and while do loops?

Here, the main difference between a while loop and do while loop is that while loop check condition before iteration of the loop….Comparison Chart.

Basis for comparison while do-while
Semi-colon Not used Used at the end of the loop

Where do we use for loop?

A “For” Loop is used to repeat a specific block of code a known number of times. For example, if we want to check the grade of every student in the class, we loop from 1 to that number. When the number of times is not known before hand, we use a “While” loop.

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Do While loop is used for?

In most computer programming languages, a do while loop is a control flow statement that executes a block of code at least once, and then either repeatedly executes the block, or stops executing it, depending on a given boolean condition at the end of the block.

Can you always convert a for loop into a while loop?

You can always convert a for loop to a while loop. You can always write a program without using break or continue in a loop. The elements inside the for loop control are separated using semicolons instead of commas. You can always convert a switch statement to an equivalent if statement.

Does Python support DO WHILE LOOP?

The while and do while loops are generally available in different programming languages. Python also has while loop, however, do while loop is not available. As such, the difference between while and do while loop is the do while loop executes the statements inside it at least once; even the condition fails at first iteration.

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What does while loop mean in Python?

Python While Loop. The Python While Loop is used to repeat a block of statements for given number of times, until the given condition is False. While loop start with the condition, if the condition is True then statements inside the while loop will be executed.

How do I create a loop in Python?

How to Create Loops in Python. In Python, and many other programming languages, you will need to loop commands several times, or until a condition is fulfilled. It is easy, and the loop itself only needs a few lines of code. 1. Open up your shell or program. This may be IDLE, or Stani’s Python Editor (SPE).

How do ‘for in’ loops work in Python?

How to use for loop in Python? For in range loop. Python has for an range loop. Reverse for loop. The for in range loop can take a third parameter -1, which specifies that the for loop will iterate in reverse order. Specify third parameter in the for loop. The third parameter in the for loop can be modified to use for loop in different ways. For in loop.