• Example 1: Why do we need loops?
• Example 2: Given two strings, find all characters appearing in both.
• Example 3: Print all the integers from 1 to 1000 that are multiples of both 6 and 10.
• Example 4: Better deal?
• Example 5: Palindromes
• Example 6: Sum up the digits in an integer 
• Example 7: Guess a chosen letter in the alphabet
• Example 8: The use of a sentinel value in while loops
• Example 9: Converting a for-loop into a while loop
• Example 10: Are all these loops doing the same thing?
• Example 11: Sum up the digits in an integer
• Example 12: Find the greatest common divisor (GCD) of two integers.