JSONObject，JSONArray使用手冊

    import net.sf.json.JSONArray;    
    import net.sf.json.JSONObject;    
    import java.util.*;    
    /**  
     *  
     * @author derek  
     */    
    public class JavaTest {    
        public static void main(String[] args){      
           JSONObject obj=new JSONObject();    
           obj.put("derek","23");    
           obj.put("dad", "49");    
           obj.put("mom", "45");    
           System.out.println("通過構造器的方式創建的JSONObject對象："+obj);    

           Map<String,String> map=new LinkedHashMap<>();    
           map.put("derek","23");    
           map.put("dad", "49");    
           map.put("mom", "45");    
           System.out.println("通過fromObject方法將map對象轉換為JSONObject對象："+JSONObject.fromObject(map));    

           JSONArray arr=new JSONArray();    
           arr.add(0,"derek");    
           arr.add(1,"dad");    
           arr.add(2,"mom");    
           System.out.println("通過構造器的方式創建的JSONArray："+arr);    

           ArrayList<String> list=new ArrayList<>();    
           list.add("derek");    
           list.add("dad");    
           list.add("mom");    
           System.out.println("通過fromObject方法將Arraylist對象轉換為JSONArray對象："+JSONArray.fromObject(list));    

           System.out.println("將HashMap對象通過fromObject方法轉換為JSONArray對象"+JSONArray.fromObject(map));    

           String str="{\"derek\":23,\"dad\":49,\"mom\":45}";    
           System.out.println("解析之后的JSON對象："+JSONObject.fromObject(str));    

           //遍歷輸出    
           Iterator<String> it=obj.keys();    
           while(it.hasNext()){    
               String key=it.next();    
               System.out.println(key+":"+obj.get(key));    
           }    
        }    

    }