JSONObject example in Java
In the previous section of JSON tutorials you
have seen how JSON can be used with JavaScript to create objects and arrays, you
have also studied how to parse and create messages with JSON in JavaScript. Now
in this part you will study how to use JSON in Java.
To have functionality of JSON in java you must have
JSON-lib. JSON-lib also requires following "JAR" files:
- commons-lang.jar
- commons-beanutils.jar
- commons-collections.jar
- commons-logging.jar
- ezmorph.jar
- json-lib-2.2.2-jdk15.jar
JSON-lib is a java library for that transforms beans,
collections, maps, java arrays and XML to JSON and then for
retransforming them back to beans, collections, maps and others.
In this example we are going to use JSONObject
class for creating an object of JSONObject and then we will print these
object value. For using JSONObject class we have to import following
package "net.sf.json". To add elements in this object we have
used put() method. Here is the full example code of
FirstJSONJava.java is
as follows:
FirstJSONJava.java
import net.sf.json.JSONObject;
public class FirstJSONJava
{
public static void main(String args[]){
JSONObject object=new JSONObject();
object.put("name","Amit Kumar");
object.put("Max.Marks",new Integer(100));
object.put("Min.Marks",new Double(40));
object.put("Scored",new Double(66.67));
object.put("nickname","Amit");
System.out.println(object);
}
}
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To run this example you have to follow these few steps
as follows:
Output:
Download Source Code
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