Problem

Ten students' grade are 56%, 34%, 75%, 89%, 78%, 87%, 71%, 67%, 98%, 85%.

1. Store their grades in an array as percents.
2. Convert them to a decimal and store them in an array.
3. Store their names in an array.

Introducing Arrays

Solution

Compared to java arrays, Python arrays is much easier. We don't need to declare the variables and we also don't need to indicate the type of each array. Because the type of an array is automatically set when we assign the value. So the code will be:

 intArray = [56, 34, 75, 89, 78, 87, 71, 67, 98, 85]; 

Code

Solution Code

def main():
  intArray = [56, 34, 75, 89, 78, 87, 71, 67, 98, 85]
  decimalArray = [0.56, 0.34, 0.75, 0.89, 0.78, 0.87, 0.71, 0.67, 0.98, 0.85]
  stringArray =["Bill", "Bob", "Betty", "Bruce", "Byron", "Brent", "Bernadette", "Bo", "Brick", "Bridget"]

  print 'Program completed successfully.'
main()