Specifications

Sun Services
Java™ Programming Language Module 7, slide 5 of 44
Copyright 2005 Sun Microsystems, Inc. All Rights Reserved. Sun Services, Revision F
Class Attributes
Class attributes are shared among all instances of a class:
1 public class Count {
2 private int serialNumber;
3 public static int counter = 0;
4
5 public Count() {
6 counter++;
7 serialNumber = counter;
8 }
9}
c1 : Count
Count
serialNumber=1
-serialNumber : int
+counter : int = 0
c2 : Count
serialNumber=2
«instanceOf»«instanceOf»