Create JSON String using GSON

Question

I am having a class like following,

public class Student {
    public int id;
    public String name;
    public int age;    
}

Now I want to c

Answer 1

You should introduce additional field to Student class that will notice GSON about id serialization policy. Then, you should implement custom serializer that will implement TypeAdapter. In your TypeAdapter implementation according to id serialization policy you will serialize it or not. Then you should register your TypeAdapter in GSON factory:

GsonBuilder gson = new GsonBuilder();
gson.registerTypeAdapter(Student.class, new StudentTypeAdapter());

Hope this helps.