java - FlexJSON doesn't serialize class objects fully -

i new flexjson , following http://flexjson.sourceforge.net/ simple tutorial.
wrote simple program seems not serializing object attributes. please me if knows this

package com.webapp.enter;  import flexjson.jsonserializer;  class pobject {         string name;        int age;        string country;          public pobject (string n, int , string c){             this.name = n;             this.country = c;             this.age = a;         }          public string tostring(){             return this.name + this.age + this.country;         }          public string[] getdata(){             return new string[]{ this.name, this.country};         } }  public class person{      public static void main(string main[]){         pobject person = new pobject("harit",23,"india");         system.out.println(person.name +  " - " + person.age + " - " + person.country);          jsonserializer serializer = new jsonserializer();         string out = serializer.serialize(person);         system.out.println("s : " + out);      } } 

output:

init: deps-module-jar: deps-ear-jar: deps-jar: compile-single: run-main: harit - 23 - india s : {"class":"com.webapp.enter.pobject"} build successful (total time: 0 seconds) 

(update deleted answer):

i tried modify code using getter/setter methods, fails saying following. apologize if doing wrong, new this

package com.webapp.enter;  import flexjson.jsonserializer;  class pobject {         string name;        int age;        string country;          public pobject (){          }          public void setname(string name){             this.name = name;         }          public void setage(int age){             this.age = age;         }          public void setcountry(string country){             this.country = country;         }          public string getname(){             return this.name;         }          public int getage(){             return this.age;         }          public string getcountry(){             return this.country;         }  }  public class person{      public static void main(string main[]){         pobject person = new pobject();         person.setage(23);         person.setcountry("usa");         person.setname("test");         system.out.println(person.name +  " - " + person.age + " - " + person.country);          jsonserializer serializer = new jsonserializer();         string out = serializer.serialize(person);         system.out.println("s : " + out);      } } 

output:

test - 23 - usa exception in thread "main" flexjson.jsonexception: error trying deepserialize         @ flexjson.transformer.objecttransformer.transform(objecttransformer.java:97)         @ flexjson.transformer.transformerwrapper.transform(transformerwrapper.java:22)         @ flexjson.jsoncontext.transform(jsoncontext.java:75)         @ flexjson.jsonserializer.serialize(jsonserializer.java:378)         @ flexjson.jsonserializer.deepserialize(jsonserializer.java:301)         @ com.webapp.enter.person.main(person.java:60) caused by: java.lang.illegalaccessexception: class flexjson.transformer.objecttransformer can not access member of class com.webapp.enter.pobject modifiers "public"         @ sun.reflect.reflection.ensurememberaccess(reflection.java:95)         @ java.lang.reflect.method.invoke(method.java:607)         @ flexjson.transformer.objecttransformer.transform(objecttransformer.java:45)         ... 5 more java result: 1 build successful (total time: 0 seconds) 

flexjson works off java beans , pobject not follow java bean specification. either need add getters properties: name, age, , country, or need mark fields public. either 1 work. add setters if plan on using jsondeserializer deserialize object.