Java

Sort JSON Object by Member Key Name

See more JSON Examples

Demonstrates how to sort the members of a JSON object by the key name. Java

import com.chilkatsoft.*;

public class ChilkatExample {

  static {
    try {
        System.loadLibrary("chilkat");
    } catch (UnsatisfiedLinkError e) {
      System.err.println("Native code library failed to load.\n" + e);
      System.exit(1);
    }
  }

  public static void main(String argv[])
  {
    CkJsonObject json = new CkJsonObject();

    json.UpdateString("xyz","1234");
    json.UpdateString("abc.xyz","1234");
    json.UpdateString("abc.def","1234");
    json.UpdateString("abc.aaa","1234");
    json.UpdateString("ghi","1234");
    json.UpdateString("nmo","1234");

    json.put_EmitCompact(false);
    System.out.println(json.emit());

    // This is our initial JSON:

    // {
    //   "xyz": "1234",
    //   "abc": {
    //     "xyz": "1234",
    //     "def": "1234",
    //     "aaa": "1234"
    //   },
    //   "ghi": "1234",
    //   "nmo": "1234"
    // }

    // Sort the top-level JSON object by key.
    boolean ascending = true;
    boolean caseSensitive = true;
    json.Sort(ascending,caseSensitive);

    // Look at the sorted JSON..
    System.out.println(json.emit());

    // {
    //   "abc": {
    //     "xyz": "1234",
    //     "def": "1234",
    //     "aaa": "1234"
    //   },
    //   "ghi": "1234",
    //   "nmo": "1234",
    //   "xyz": "1234"
    // }

    // Now sort the members of the "abc" object..
    CkJsonObject jsonAbc = new CkJsonObject();
    json.ObjectOf2("abc",jsonAbc);

    jsonAbc.Sort(ascending,caseSensitive);

    // Now look at the JSON with the members under "abc" also sorted..
    System.out.println(json.emit());

    // {
    //   "abc": {
    //     "aaa": "1234",
    //     "def": "1234",
    //     "xyz": "1234"
    //   },
    //   "ghi": "1234",
    //   "nmo": "1234",
    //   "xyz": "1234"
    // }
  }
}