Class JSONObject

core/src/processing/data/JSONObject.java:126–2336

A JSONObject stores JSON data with multiple name/value pairs. Values can be numeric, Strings , booleans , other JSONObject s or JSONArray s, or null. JSONObject and JSONArray objects are quite similar and share most of the same methods; the primary differ

 * @see PApplet#saveJSONArray(JSONArray, String)
 */
public class JSONObject {
  /**
   * The maximum number of keys in the key pool.
   */
  private static final int keyPoolSize = 100;

  /**
   * Key pooling is like string interning, but without permanently tying up
   * memory. To help conserve memory, storage of duplicated key strings in
   * JSONObjects will be avoided by using a key pool to manage unique key
   * string objects. This is used by JSONObject.put(string, object).
   */
  private static HashMap<String, Object> keyPool =
    new HashMap<>(keyPoolSize);


  // . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .


  /**
   * JSONObject.NULL is equivalent to the value that JavaScript calls null,
   * whilst Java's null is equivalent to the value that JavaScript calls
   * undefined.
   */
  private static final class Null {
    /**
     * There is only intended to be a single instance of the NULL object,
     * so the clone method returns itself.
     * @return     NULL.
     */
    @Override
    protected final Object clone() {
      return this;
    }

    /**
     * A Null object is equal to the null value and to itself.
     * @param object    An object to test for nullness.
     * @return true if the object parameter is the JSONObject.NULL object
     *  or null.
     */
    @Override
    public boolean equals(Object object) {
      return object == null || object == this;
    }

    /**
     * Get the "null" string value.
     * @return The string "null".
     */
    @Override
    public String toString() {
      return "null";
    }

    @Override
    public int hashCode() {
      // TODO Auto-generated method stub