Package org.json.simple

Class JSONObject

  • All Implemented Interfaces:
    java.io.Serializable, java.lang.Cloneable, java.util.Map, JSONAware, JSONStreamAware
    public class JSONObject
extends java.util.HashMap
implements java.util.Map, JSONAware, JSONStreamAware
    A JSON object. Key value pairs are unordered. JSONObject supports java.util.Map interface.
    See Also:
    Serialized Form

    • Nested Class Summary

      • Nested classes/interfaces inherited from class java.util.AbstractMap

        java.util.AbstractMap.SimpleEntry<K extends java.lang.Object,​V extends java.lang.Object>, java.util.AbstractMap.SimpleImmutableEntry<K extends java.lang.Object,​V extends java.lang.Object>

      • Nested classes/interfaces inherited from interface java.util.Map

        java.util.Map.Entry<K extends java.lang.Object,​V extends java.lang.Object>

    • Field Summary

      Fields 
      Modifier and Type Field Description
      private static long serialVersionUID  

    • Constructor Summary

      Constructors 
      Constructor Description
      JSONObject()  
      JSONObject​(java.util.Map map)
      Allows creation of a JSONObject from a Map.

    • Method Summary

      All Methods Static Methods Instance Methods Concrete Methods 
      Modifier and Type Method Description
      static java.lang.String escape​(java.lang.String s)
      Escape quotes, \, /, \r, \n, \b, \f, \t and other control characters (U+0000 through U+001F).
      java.lang.String toJSONString()  
      private static java.lang.String toJSONString​(java.lang.String key, java.lang.Object value, java.lang.StringBuffer sb)  
      static java.lang.String toJSONString​(java.util.Map map)
      Convert a map to JSON text.
      java.lang.String toString()  
      static java.lang.String toString​(java.lang.String key, java.lang.Object value)  
      void writeJSONString​(java.io.Writer out)
      write JSON string to out.
      static void writeJSONString​(java.util.Map map, java.io.Writer out)
      Encode a map into JSON text and write it to out.

      • Methods inherited from class java.util.HashMap

        clear, clone, compute, computeIfAbsent, computeIfPresent, containsKey, containsValue, entrySet, forEach, get, getOrDefault, isEmpty, keySet, merge, put, putAll, putIfAbsent, remove, remove, replace, replace, replaceAll, size, values

      • Methods inherited from class java.util.AbstractMap

        equals, hashCode

      • Methods inherited from class java.lang.Object

        finalize, getClass, notify, notifyAll, wait, wait, wait

      • Methods inherited from interface java.util.Map

        clear, compute, computeIfAbsent, computeIfPresent, containsKey, containsValue, entrySet, equals, forEach, get, getOrDefault, hashCode, isEmpty, keySet, merge, put, putAll, putIfAbsent, remove, remove, replace, replace, replaceAll, size, values

    • Constructor Detail

      • JSONObject

        public JSONObject()

      • JSONObject

        public JSONObject​(java.util.Map map)
        Allows creation of a JSONObject from a Map. After that, both the generated JSONObject and the Map can be modified independently.
        Parameters:
        map -

    • Method Detail

      • writeJSONString

        public static void writeJSONString​(java.util.Map map,
                                   java.io.Writer out)
                            throws java.io.IOException
        Encode a map into JSON text and write it to out. If this map is also a JSONAware or JSONStreamAware, JSONAware or JSONStreamAware specific behaviours will be ignored at this top level.
        Parameters:
        map -
        out -
        Throws:
        java.io.IOException
        See Also:
        JSONValue.writeJSONString(Object, Writer)

      • writeJSONString

        public void writeJSONString​(java.io.Writer out)
                     throws java.io.IOException
        Description copied from interface: JSONStreamAware
        write JSON string to out.
        Specified by:
        writeJSONString in interface JSONStreamAware
        Throws:
        java.io.IOException

      • toJSONString

        public static java.lang.String toJSONString​(java.util.Map map)
        Convert a map to JSON text. The result is a JSON object. If this map is also a JSONAware, JSONAware specific behaviours will be omitted at this top level.
        Parameters:
        map -
        Returns:
        JSON text, or "null" if map is null.
        See Also:
        JSONValue.toJSONString(Object)

      • toJSONString

        public java.lang.String toJSONString()
        Specified by:
        toJSONString in interface JSONAware
        Returns:
        JSON text

      • toJSONString

        private static java.lang.String toJSONString​(java.lang.String key,
                                             java.lang.Object value,
                                             java.lang.StringBuffer sb)

      • toString

        public java.lang.String toString()
        Overrides:
        toString in class java.util.AbstractMap

      • toString

        public static java.lang.String toString​(java.lang.String key,
                                        java.lang.Object value)

      • escape

        public static java.lang.String escape​(java.lang.String s)
        Escape quotes, \, /, \r, \n, \b, \f, \t and other control characters (U+0000 through U+001F). It's the same as JSONValue.escape() only for compatibility here.
        Parameters:
        s -
        Returns:
        See Also:
        JSONValue.escape(String)