Question

Differentiate between for and while statements with example.​

Answer 1

Answer:

The 'for' loop used only when we already knew the number of iterations. The 'while' loop used only when the number of iteration are not exactly known. If the condition is not put up in 'for' loop, then loop iterates infinite times. If the condition is not put up in 'while' loop, it provides compilation error.

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Answer 2

Answer:

Explanation:

A for loop is generally used for iteration on every element of a particular iterable object like a list, set, tuple etc.

A while statement is generally used to loop a bunch of codes until a specific condition is met.

example:

# Program to find the sum of all numbers stored in a list

# List of numbers

numbers = [6, 5, 3, 8, 4, 2, 5, 4, 11]

# variable to store the sum

sum = 0

# iterate over the list

for val in numbers:

sum = sum+val

print("The sum is", sum)

example:

count = 0

while (count < 9):

 print 'The count is:', count

 count = count + 1

print "Good bye!"...