How to create JSON Object using String

Question

I want to create a JSON Object using String   Example    JSON   test1   value1   test2    id  0  name   testName     In order to create the above JSON I am using this   String message  JSONObject json   new JSONObject     json put  test1    value1     JSONObject jsonObj   new JSONObject     jsonObj put  id   0   jsonObj put  name    testName    json put  test2   jsonObj    message   json toString    System out println message     I want to know how can I create a JSON which has JSON Array in it   Below is the sample JSON        name    student       stu          id   0       batch    batch           course                  information    test          id    3          name    course1                studentAddress                  additionalinfo    test info          Address                          H No    1243              Name    Temp Address              locality    Temp locality               id  33                                            H No    1243              Name    Temp Address              locality    Temp locality                id  33                                                             H No    1243              Name    Temp Address              locality    Temp locality                id  36                                        verified   true                Thanks

User · Answer

In contrast to what the accepted answer proposes, the documentation says that for JSONArray() you must use put(value) no add(value).

https://developer.android.com/reference/org/json/JSONArray.html#put(java.lang.Object)

(Android API 19-27. Kotlin 1.2.50)

User · Answer

If you use the gson JsonObject you can have something like that  import com google gson JsonObject  import com google gson JsonParser   String jsonString    quot   test1   value1   test2    id  0  name   testName    quot  JsonObject jsonObject    JsonObject  jsonParser parse jsonString

User · Answer

JSONArray may be what you want  String message  JSONObject json   new JSONObject    json put  quot name quot    quot student quot     JSONArray array   new JSONArray    JSONObject item   new JSONObject    item put  quot information quot    quot test quot    item put  quot id quot   3   item put  quot name quot    quot course1 quot    array put item    json put  quot course quot   array    message   json toString        message      quot course quot     quot id quot  3  quot information quot   quot test quot   quot name quot   quot course1 quot     quot name quot   quot student quot

[java] How to create JSON Object using String?

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