<<DEITEL - Python How to Program 2002>>Special attributes of an obje

 1 # Fig. 7.1: Time1.py
 2 # Simple definition of class Time.
 3  
 4  class Time:
 5    """Time abstract data type (ADT) definition"""
 6    
 7    def __init__( self ):
 8       """Initializes hour, minute and second to zero"""
 9 
10       self.hour = 0     # 0-23
11        self.minute = 0   # 0-59
12        self.second = 0   # 0-59
13  
14    def printMilitary( self ):
15       """Prints object of class Time in military format"""
16       
17       print "%.2d:%.2d:%.2d"  % ( self.hour, self.minute, self.second )
18  
19    def printStandard( self ):
20       """Prints object of class Time in standard format"""
21 
22       standardTime = ""
23 
24       if self.hour == 0 or self.hour == 12:
25          standardTime += "12:"
26       else:
27          standardTime += "%d:" % ( self.hour % 12 )
28 
29       standardTime += "%.2d:%.2d" % ( self.minute, self.second )
30 
31       if self.hour < 12:
32          standardTime += " AM"
33       else:
34          standardTime += " PM"
35       
36       print standardTime,
37 
38  ########################################################################## 
39 # (C) Copyright 2002 by Deitel & Associates, Inc. and Prentice Hall.     #
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52