) Difference between field getfield (string name) and field getdeclaredfield (string name)

Field getfield (string name) returns the Field object of all public member variables declared by the loaded class, including the member variables inherited from the parent class. The parameter name specifies the name of the member variable.

Field getdeclaredfield (string name) cannot obtain the member variables inherited from the parent class.

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 1   Package  Cn.com. VO;
  2   
  3     Public     Class  Father {
  4    Public  String name  =  "  Father  "  ;
  5   
  6     Public  String sex  =  "  Male  "  ;
 7   
  8     Public  String getname (){
  9     Return  Name;
  10   }
  11   
  12     Public    Void  Setname (string name ){
  13     This  . Name  =  Name;
  14   }
  15   
  16     Public  String getsex (){
 17     Return  Sex;
  18   }
  19   
  20     Public     Void  Setsex (string sex ){
  21     This . Sex  =  Sex;
  22   }
  23   
  24   
  25   }
  26     ++  
  27   
 28     Package  Cn.com. VO;
  29   
  30     Public     Class  Son  Extends  Father {
  31   
  32    //  Public string name;  
  33     Public     Int  Age  =  20  ;
  34   
  35   
  36   }
 37     ========================================================== =  
  38   
  39     Package  Cn.com. VO;
  40   
  41     Import  Java. Lang. Reflect. constructor;
  42    Import  Java. Lang. Reflect. field;
  43     Import  Java. Lang. Reflect. invocationtargetexception;
  44     Import  Java. Lang. Reflect. method;
  45   
  46     Import Cn.com. VO. uservo;
  47   
  48     Public     Class  Testreflect {
  49   
  50     /**  
  51   * Java reflection mechanism
 52     */  
  53     Public     Static     Void  Main (string [] ARGs ){
  54     Try  {
  55    //  Dynamic Loading of Classes  
  56     Class C  =  Class. forname (  "  Cn.com. VO. Son  "  );  //  Method 1  
  57     Son Vo =  (Son) C. newinstance ();
  58   
  59   Field F  =  C. getfield (  "  Name  "  );
  60   System. Out. println (F. Get (VO ));
  61   
  62  
  63     //  Note: lower partCodeAn error is reported,  
  64       /*  Field F2 = C. getdeclaredfield ("name ");
  65   System. Out. println (f2.get (VO ));  */  
  66  
  67   }  Catch  (Classnotfoundexception e ){
  68     //  Todo auto-generated Catch Block  
  69     E. printstacktrace ();
  70   }  Catch (Securityexception e ){
  71     //  Todo auto-generated Catch Block  
  72     E. printstacktrace ();
  73   }  Catch  (Nosuchfieldexception e ){
  74     // Todo auto-generated Catch Block  
  75     E. printstacktrace ();
  76   }  Catch  (Instantiationexception e ){
  77     //  Todo auto-generated Catch Block  
  78    E. printstacktrace ();
  79   }  Catch  (Illegalaccessexception e ){
  80     //  Todo auto-generated Catch Block  
  81     E. printstacktrace ();
  82   }
  83  }
  84   
  85   }