Introduction to Computer Science and Programming in Python

Lecture 3

1. String Manipulations

   What does the code below print?

   s = "6.00 is 6.0001 and 6.0002"
   new_str = ""
   new_str += s[-1]
   new_str += s[0]
   new_str += s[4::30] 
   new_str += s[13:10:-1]
   print(new_str)
   

   260000 close

   26100 close

   26 100 check

   nothing, it will give an error close

   6.00 is 6.0001 and 6.0002 close

   Check   Show Solution

2. For Loops with Strings

   How many times will the code below print “common letter”?

   s1 = "mit u rock"
   s2 = "i rule mit"
   if len(s1) == len(s2):
       for char1 in s1:
           for char2 in s2:
               if char1 == char2:
                   print("common letter")
                   break
   

   0 close

   2 close

   4 close

   5 close

   6 close

   7 check

   8 close

   10 close

   Check   Show Solution