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How to check if a key exists in Json Object and get its value

Let say this is my JSON Object

{
  "LabelData": {
    "slogan": "AWAKEN YOUR SENSES",
    "jobsearch": "JOB SEARCH",
    "contact": "CONTACT",
    "video": "ENCHANTING BEACHSCAPES",
    "createprofile": "CREATE PROFILE"
  }
}

I need to know that either 'video` exists or not in this Object, and if it exists i need to get the value of this key. I have tried following, but i am unable to get value of this key.

 containerObject= new JSONObject(container);
 if(containerObject.hasKey("video")){
  //get Value of video
}
over 4 years ago · Santiago Trujillo
3 answers
Answer question

0

Use below code to find key is exist or not in JsonObject. has("key") method is used to find keys in JsonObject.

containerObject = new JSONObject(container);
//has method
if (containerObject.has("video")) {
    //get Value of video
    String video = containerObject.optString("video");
}

If you are using optString("key") method to get String value then don't worry about keys are existing or not in the JsonObject.

over 4 years ago · Santiago Trujillo Report

0

Use:

if (containerObject.has("video")) {
    //get value of video
}
over 4 years ago · Santiago Trujillo Report

0

containerObject = new JSONObject(container);
if (containerObject.has("video")) { 
   //get Value of video
}
over 4 years ago · Santiago Trujillo Report
Answer question
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