Using a Scanner...
1. repeat each word you read twice
2. print the number of words that you read
3. print the sum of numbers that you read (you can suppose that the user inputs only numbers)

exercise for next week:
The user types in coordinates of points (integers).
Make a window and draw lines between
  - the first and second one,
  - the second and third one,
  - etc etc
points on it.
Also, draw a (blocky) Pac-Man with it.