java - How to get all fields along with value of Composite object? -

i facing issue value of fields of class reflaction.

i have 1 class can have number of fields, number of classes , classes in turn can have number of fields, below

public class a{     string string;     int number;     hashmap<string,string> map;     b bclass; } 

above b again class member of class a.

1. i want fields of type string , their's values , if field class
2. if field class again, fields , values , example, map property of type hashmap class type need both key , value properties of string type.

please see code snippet solve above problem

private void extractstringfields(object object) throws illegalaccessexception {     (field field : object.getclass().getdeclaredfields()) {          field.setaccessible(true);         system.out.println("filesd : "+field.getname());         object value = field.get(object);          if (field.gettype().equals(string.class)) {             system.out.println(field.getname() + "=" + value);         }         extractstringfields(field);     } } 

but unfortunately, not working, me please.

when passing,

extractstringfields(field); 

it sending field object. when 2nd call onwards object.getclass give field.class. never proper value.
better keep overloaded class, pass field there. in method can write this,

for (field field : field.gettype().getdeclaredfields()) 

hope give head start.

or can use this:

if(value != null){                 extractstringfields(value);             }