java Homework: Create a record number of objects

Subject description:

 

 Source:

 

. 1  public  class objectCount {
 2      static  int CNT = 0 ;
 . 3      public objectCount ()
 . 4      {
 . 5          CNT ++ ;
 . 6      }
 . 7      public  static  void the display ()
 . 8      {
 . 9          . The System OUT .println ( " you have created " + CNT + " th Object " );
 10      }
 . 11      public  static  void main (String [] args) {
 12 is         // TODO Auto-generated method stub
13         objectCount obj1 = new objectCount();
14         objectCount obj2 = new objectCount();
15         objectCount obj3 = new objectCount();
16         objectCount obj4 = new objectCount();
17         display();
18         objectCount obj5 = new objectCount();
19         objectCount obj6 = new objectCount();
20         objectCount obj7 = new objectCount();
21         display();
22         objectCount obj8 = new objectCount();
23         objectCount obj9 = new objectCount();
24         display();
25     }
26 
27 }

 

Ideas:

Static variable count accumulated in the constructor to manipulation variable.

operation result:

 

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Origin www.cnblogs.com/52bb/p/11700056.html