Java

JSON: Array of Objects

See more JSON Examples

Here we have a JSON object that contains an array, where each element in the array is a JSON object. This example demonstrates how to access the objects contained within an array.

{ 
  "employees":[
    {"firstName":"John", "lastName":"Doe"},
    {"firstName":"Anna", "lastName":"Smith"},
    {"firstName":"Peter","lastName":"Jones"}
  ]
}

Chilkat2 Java

import com.chilkatsoft.chilkat2.ChilkatException;
import com.chilkatsoft.chilkat2.JsonArray;
import com.chilkatsoft.chilkat2.JsonObject;

public class ChilkatExample {

    public static void main(String[] args) {
        JsonObject json = new JsonObject();

        // This is the above JSON with whitespace chars removed (SPACE, TAB, CR, and LF chars).
        // The presence of whitespace chars for pretty-printing makes no difference to the Load
        // method.
        String jsonStr = "{\"employees\":[{\"firstName\":\"John\", \"lastName\":\"Doe\"},{\"firstName\":\"Anna\", \"lastName\":\"Smith\"},{\"firstName\":\"Peter\",\"lastName\":\"Jones\"}]}";

        try {
            json.load(jsonStr);
        } catch (ChilkatException e) {
            System.out.println(e.getLastErrorText());
            return;
        }

        // Get the "employees" array.
        JsonArray employees = json.arrayOf("employees");
        if (employees == null) {
            System.out.println("employees member not found.");
            return;
        }

        // Iterate over each employee, getting the JSON object at each index.
        int numEmployees = employees.getSize();
        int i = 0;
        while (i < numEmployees) {
            JsonObject empObj = employees.objectAt(i);

            System.out.println("employee[" + i + "] = " + empObj.stringOf("firstName") + " " + empObj.stringOf("lastName"));
            empObj.close();

            i = i + 1;
        }

        employees.close();
    }
}