Java - read a JSON file

#JSONJavaRead #ReadJSONFileUsingJava

Java - read a JSON file
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[Spham]

I'm a bad listener, so him yelling at me actually gets me to understand xD

[pvignatov]

Thank you! The lesson helped me so much!

[vladanulardzic]

Perfect practical explanation ! Thank you ! Keep on !

[butcherbio]

Which shortcut did you use to import package?

[umangsharma]

String age = (String) jsonObj.get("age");
System.out.println("age is :" + age);


say i have age as key and its value say 25.
which variable should i store it into ? i am getting error while trying to store it into String and casting it to String.
can you please suggest about it ?

[sainiranjan]

Thank you for the video Professor.
I have json file locally and I am trying to read its values and edit before I send to server. I followed your video but I am getting below error at line 17 in your video reference,
class org.json.simple.JSONArray cannot be cast to class org.json.simple.JSONObject

Please do help!

[ALeN]

what json library r you used? I mean the JAR files that you import to your project

[vinayakdhage]

how to reading data from json file without key?
or
get keys present in json?

[stackingflow]

How to make it work for the multiple JSON entries in a file?

[patrickrayaisse]

FileNotFoundException :filename.json : open failed : ENOENT ( No such file or directory) but my data.json file already exists in the project directory

[qr]

can you if you do this tutorial maybe once again with like multiple json files can you show us how the json looks? cuz me my self i am looking something specific, for example i would like to save each person in a json file but each person has a job, age, birthday etc but i want it to be displayed nicely

[RealEyes]

JSONParser constructor takes 3 arguments, how come it does not require you to insert them ?

[felipemarcelo]

Which library did you use? Json-simple-1.1.1?

[RajeshKumar-impi]

I am getting the below error. Pls help me "Unexpected character (O) at position 11.
at

[vidalperazasanchez]

is possible read external json file from url ?

[simonfelderer]

Hey, where Can I get your JSON File for the example?
Would like to try it out!

[quocthai]

My JSON file has some value is a number, so how can i take it, im trying with Integer instead of String, like in your video String I replace it by Integer but it didnt work . It said ClassCastException
here some of my JSON file :
{
"height":25,
"id":1,
"name":"aaa",
"rotation":0,
"type":"",
"visible":true,
"width":29,
"x":12,
"y":-116
}

[pratikchapadgaonkar]

This gives me syntax error in netbeans 8.2. What development platform is being used in the video?

[nik]

hey guyzz...i have a question..ok..in my android game data..i found a user.json file but when i open it ..it has a tax that i cant read..means it's unreadable and it's not like simple language .so how i conver into readable file and edit..plzz help

[pratikchapadgaonkar]

hi. I am getting a exception that JASONArray cant be typecast as a JASONObject. How to handle it?