While loop with sentinel-controlled repetiton. : While « Language Basics « Python





While loop with sentinel-controlled repetiton.

While loop with sentinel-controlled repetiton.
 
total = 0          
gradeCounter = 0   

grade = raw_input( "Enter grade, -1 to end: " )   # get one grade
grade = int( grade )                              # convert string to an integer

while grade != -1:
   total = total + grade
   gradeCounter = gradeCounter + 1
   grade = raw_input( "Enter grade, -1 to end: " )
   grade = int( grade )

if gradeCounter != 0:
   average = float( total ) / gradeCounter
   print "Class average is", average
else:
   print "No grades were entered"

           
         
  










Related examples in the same category

1.While loop with counter-controlled repetition.While loop with counter-controlled repetition.
2.Analysis of examination results.
3.Use if inside whileUse if inside while
4.While loopWhile loop
5.How to use whileHow to use while
6.While loop demoWhile loop demo
7.While with breakWhile with break
8.Write an initial sub-sequence of the Fibonacci series
9.While with elseWhile with else
10.Guess My Number
11.A trailing comma avoids the newline after the output