Create JSON data NVD3 Chart using Java -

Create JSON data NVD3 Chart using Java -

i working on nvd3 chart need create json info chart below:

[{ "key" : "north america" , "values" : [ [ 1025409600000 , 23.041422681023] , [ 1028088000000 , 19.854291255832] ] }, { "key" : "africa" , "values" : [ [ 1025409600000 , 23.041422681023] , [ 1028088000000 , 19.854291255832] ] }, { "key" : "south america" , "values" : [ [ 1025409600000 , 23.041422681023] , [ 1028088000000 , 19.854291255832] ] }]

would please help me create above json info using java trying create construction since lastly 3 hours not successful yet.

here plunker link: stacked area chart nvd3

here live json info illustration want create in java: json illustration data

here solution found myself:

import org.json.jsonarray; import org.json.jsonobject; public class createnvd3jsondatajava { public static void main(string[] args) { jsonobject jo = new jsonobject(); jo.put("values", new jsonarray(new long[][]{{1025409600000l,23l},{1028088000000l,19l},{1030766400000l,21l},{1033358400000l,22l}})); jo.put("key", "north america"); jsonarray ja = new jsonarray(); ja.put(jo); ja.put(jo); ja.put(jo); system.out.println(ja); } }

java json nvd3.js