android - How to create a JSON structure using Arraylist and Hashmap -

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i'm beginner in android development ... want know how create json structure, using arraylists , hashmaps ... can find structure follows ... note: don't want use jsonarray or jsonobject

[ [ {   "blog_owner" : "user",   "icalissueeventid" : "",   "updated_date" : "2014-02-17 07:05:53 +0000",   "icaleventid" : "",   "blog_stage" : "cancelled",   "blog_id" : "gmpk20140206160708281",   "created_date" : "2014-02-06 10:37:38 +0000",   "emailflag" : false } ], [ {   "blog_inotes_id" : "",   "blog_name" : "",   "blog_status" : "",   "blog_duration" : "" }, {   "pid" : "0",   "isopen" : true,   "id" : "r1",   "level" : 0,   "value" : [     {       "level" : 0,       "id" : "ma20140206181038936",       "type" : "meetingagenda",       "isopen" : true,       "value" : [         {           "pid" : "ma20140206181038936",           "level" : 1,           "id" : "cn20140207211127374",           "isopen" : false,           "value" : [            ],           "line_number" : 13,           "keyitem" : "fgh",           "iscategoryselected" : false         },         {           "line_number" : 14,           "level" : 1,           "id" : "cn20140217123343769",           "isopen" : true,           "value" : [            ],           "keyitem" : "fghh",           "iscategoryselected" : false,           "pid" : "ma20140206181038936"         },         {           "pid" : "ma20140206181038936",           "level" : 1,           "id" : "iss20140217123542229",           "isopen" : true,           "type" : "issues",           "value" : [            ],           "type_keyitem" : {             "tfimpact" : "",             "tvissuedescription" : "",             "tfactionrequired" : "ffg",             "tfresponsible" : "",             "targetdate" : "month dd yyyy"           },           "keyitem" : "issues",           "iscategoryselected" : true,           "line_number" : 15         }       ],       "type_keyitem" : {         "tfagendatitle" : "new agenda magic minutes",         "lblduration" : "00:00",         "tfagendaname" : ""       },       "line_number" : 11,       "iscategoryselected" : false,       "pid" : "r1"     }   ],   "iscategoryselected" : false,   "keyitem" : "root",   "line_number" : 10 } ], [ ] ]

you can use google-gson library converting json java objects , vice-versa.

some other helpful links :

1) http://www.javacreed.com/simple-gson-example/

2) http://www.mkyong.com/java/how-do-convert-java-object-to-from-json-format-gson-api/

hope you.


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