listsystem.java

java课程的资料以及实验的代码

//get the useneame of localhost
 public   class   Listsystem{   
    
  Listsystem(){   
    
  printClassName(this);   
  }   
    
  void   printClassName(Object   obj){   
    
  System.out.println("Theclassof"+obj+"is"+obj.getClass().getName());   
  }   
    
    
  public   static   void   main(String   args[]){   
  String   name;   
  name=System.getProperty("user.name");   
  System.out.println(name);   
  System.getProperties().list(System.out);   
  Listsystem   a=new   Listsystem();   
  }   
  }