Java tutorial
/** * Copyright 2012-2014 Java Creed. * * Licensed under the Apache License, Version 2.0 (the "<em>License</em>"); * you may not use this file except in compliance with the License. You may * obtain a copy of the License at: * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the * License for the specific language governing permissions and limitations * under the License. */ package com.javacreed.examples.gson.part3; import java.io.IOException; import com.google.gson.Gson; import com.google.gson.GsonBuilder; public class Main { public static void main(final String[] args) throws IOException { // Configure GSON final DataTypeAdapterFactory.Builder dtafBuilder = new DataTypeAdapterFactory.Builder(); dtafBuilder.add(A.class, new ATypeAdapter()); final GsonBuilder gsonBuilder = new GsonBuilder(); gsonBuilder.registerTypeAdapterFactory(dtafBuilder.build()); gsonBuilder.setPrettyPrinting(); final Gson gson = gsonBuilder.create(); final B b = new B(); final String json = gson.toJson(b); System.out.println(json); } }