Computer Science 15-110, Spring 2011
Class Notes: Console I/O

1. Console Output
1. Basic Print Statement
2. Print with Comma
3. Print Multiple Items
2. Console Input
1. String with raw_input()
2. Number with raw_input() (error!)
3. Number with raw_input() and int()
4. Strings and Numbers with input()

Console I/O

1. Console Output
1. Basic Print Statement
   
   print "Carpe"
   print "diem"
   
   
2. Print with Comma
   
   print "Carpe",
   print "diem"
   
   
3. Print Multiple Items
   
   print "Carpe", "diem"
   
   Another Example:
   
   # Compute the hypotenuse of a right triangle
   a = 3
   b = 4
   c = ((a**2) + (b**2))**0.5
   print "side a =", a
   print "side b =", b
   print "hypotenuse c =", c
   
   
2. Basic Console Input
   
1. String with raw_input()
   
   name = raw_input("Enter your name: ")
   print "Your name is: " + name
   
   
2. Number with raw_input() (error!)
   
   x = raw_input("Enter a number: ")
   print "One half of ", x, " = ", x/2 # Error!
   
   
3. Number with raw_input() and int()
   
   x = int(raw_input("Enter a number: "))
   print "One half of ", x, " = ", x/2
   
   
4. Strings and Numbers with input()  (Not recommended!)
   
   x = input("Try this with a string and then a number: ") # input() is not recommended!
   print 2*x
   
   

carpe diem   -   carpe diem   -   carpe diem   -   carpe diem   -   carpe diem   -   carpe diem   -   carpe diem   -   carpe diem   -   carpe diem