CODEWITHSUNDEEP
javajsonfile
user1321824
user1321824

Reputation: 445

Java object from JSON input file

Hi I have a json input file as follows,

{'Latitude':'20',
 'coolness':2.0,
 'altitude':39000,
 'pilot':{'firstName':'Buzz',
          'lastName':'Aldrin'},
 'mission':'apollo 11'}

How to create a java object from the json input file.

Thanks

Upvotes: 0

Views: 1454

Answers (2)

Nishant
Nishant

Reputation: 55866

There are more than one APIs that can be used. The simplest one is JSONObject

Just do the following:

JSONObject o = new JSONObject(jsonString);
int alt = o.getInt("altitude");
....

there are getXXX methods for each type. It basically stores the object as a map. This is a slow API.

You may use Google's Gson, which is an elegant and better library -- slightly more work required than JSONObject. If you are really concerned about speed, use Jackson.

Upvotes: 1

Luca Matteis
Luca Matteis

Reputation: 29267

You can use the very simple GSON library, with the Gson#fromJson() method.

Here's an example: Converting JSON to Java

Upvotes: 1

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