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How to create a JSON Array using Object Model in Java?
The javax.json.JsonArray interface can represent an immutable JSON array and provides an unmodifiable list view of the values in the array. A JsonArray object can be created by reading JSON data from an input source and also using a static method createArrayBuilder() of javax.json.Json class. We need to import the javax.json package (download javax.json-api.jar file) in order to execute it.
Syntax
public static JsonArrayBuilder createArrayBuilder()
Example
import java.io.*;
import javax.json.*;
import javax.json.JsonObjectBuilder;
public class JsonArrayTest {
public static void main(String[] args) {
JsonObjectBuilder builder = Json.createObjectBuilder();
builder.add("Name", "Raja Ramesh");
builder.add("Designation", "Java Developer");
builder.add("Company", "TutorialsPoint");
JsonArray contactInfo = Json.createArrayBuilder().add(Json.createObjectBuilder().add("email", "raja@gmail.com")).add(Json.createObjectBuilder().add("mobile", "9959984000")).build();
builder.add("contactInfo", contactInfo);
JsonObject data = builder.build();
StringWriter sw = new StringWriter();
JsonWriter jw = Json.createWriter(sw);
jw.writeObject(data);
jw.close();
System.out.println(sw.toString());
}
}Output
{"Name":"Raja Ramesh","Designation":"Java Developer","Company":"TutorialsPoint",
"contactInfo":[{"email":"raja@gmail.com"},{"mobile":"9959984000"}]}
Updated on: 07-Jul-2020
1K+ Views
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