code: /*******************************************************************************
   *
   *	Copyright (c) 2020 Nick Battle.
   *
   *	Author: Nick Battle
   *
   *	This file is part of VDMJ.
   *
   *	VDMJ is free software: you can redistribute it and/or modify
   *	it under the terms of the GNU General Public License as published by
   *	the Free Software Foundation, either version 3 of the License, or
   *	(at your option) any later version.
   *
   *	VDMJ 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 General Public License for more details.
   *
   *	You should have received a copy of the GNU General Public License
   *	along with VDMJ.  If not, see <http://www.gnu.org/licenses/>.
   *
   ******************************************************************************/
  
  package cosim2vdm;
  
  import java.util.LinkedHashMap;
  
  public class JSONObject extends LinkedHashMap<String, Object>	// Order preserving!
  {
  	private static final long serialVersionUID = 1L;
  	
  	public JSONObject(Object... args)
  	{
  		if (args.length % 2 != 0)
  		{
  			throw new IllegalArgumentException("JSONObject requires argument pairs");
  		}
  		
  		for (int a=0; a<args.length; a=a+2)
  		{
  			if (!(args[a] instanceof String))
  			{
  				throw new IllegalArgumentException("JSONObject name must be String");
  			}
  			
  			put((String)args[a], args[a+1]);
  		}
  	}
  	
  	@SuppressWarnings("unchecked")
  	public <T> T get(String name)
  	{
  		return (T)super.get(name);
  	}
  }
  