Java tutorial
/** * Copyright (c) 2000-present Liferay, Inc. All rights reserved. * * This library is free software; you can redistribute it and/or modify it under * the terms of the GNU Lesser General Public License as published by the Free * Software Foundation; either version 2.1 of the License, or (at your option) * any later version. * * This library is distributed in the hope that it will be useful, but WITHOUT * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS * FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more * details. */ package com.liferay.portal.kernel.json; import java.io.Externalizable; import java.io.Writer; import java.util.Date; import java.util.Iterator; import java.util.Set; import org.osgi.annotation.versioning.ProviderType; /** * @author Brian Wing Shun Chan */ @ProviderType public interface JSONObject extends Externalizable, JSONSerializable { public Object get(String key); public boolean getBoolean(String key); public boolean getBoolean(String key, boolean defaultValue); public double getDouble(String key); public double getDouble(String key, double defaultValue); public int getInt(String key); public int getInt(String key, int defaultValue); public JSONArray getJSONArray(String key); public JSONObject getJSONObject(String key); public long getLong(String key); public long getLong(String key, long defaultValue); public String getString(String key); public String getString(String key, String defaultValue); public boolean has(String key); public boolean isNull(String key); public Iterator<String> keys(); public Set<String> keySet(); public int length(); public JSONArray names(); public Object opt(String key); public JSONObject put(String key, boolean value); public JSONObject put(String key, Date value); public JSONObject put(String key, double value); public JSONObject put(String key, int value); public JSONObject put(String key, JSONArray value); public JSONObject put(String key, JSONObject value); public JSONObject put(String key, long value); public JSONObject put(String key, Object value); public JSONObject put(String key, String value); public JSONObject putException(Exception exception); public Object remove(String key); @Override public String toString(); public String toString(int indentFactor) throws JSONException; public Writer write(Writer writer) throws JSONException; }