no

public class JSONWriter extends Writer {
    private JSONObject json = null;
    private boolean closed = true;

    public JSONWriter () {
        closed = false;
    }

    public JSONWriter (String text) throws JSONFormatException {
        json = new JSONObject(text);
        closed = false;
    }

    public JSONWriter (File file) throws JSONFormatException {
        String text = "";
        for (String s : Files.readAllLines(file.toPath())) text = text.concat(s);
        json = new JSONObject(text);
        closed = false;
    }

    public JSONWriter (File file, boolean overwrite) throws JSONFormatException {
        if (!overwrite) {
            String text = "";
            for (String s : Files.readAllLines(file.toPath())) text = text.concat(s);
        }
        json = new JSONObject(text);
        closed = false;
    }

    public void flush () {
        json = null;
    }

    public void close () {
        this.flush();
        closed = true;
    }

    public void write (char[] buffer) {
        this.write(new String(buffer));
    }

    public void write (char[] buffer, int offset, int length) {
        if (offset + length > buffer.length) throw new IllegalArgumentException("Offset and length combined cannot be greater than buffer length.");
        char[] intermediate = new char[length];
        System.arraycopy(buffer, offset, intermediate, 0, length);
        this.write(new String(intermediate));
    }

    public void write (int i) {
        this.write(new char[1]{(char) i});
    }

    public void write (String buffer) {
        this.write(buffer, 0, buffer.length());
    }

    public void write (String buffer, int offset, int length) {
        if (json == null) json = new JSONObject();
        if (offset + length > buffer.length()) throw new IllegalArgumentException("Offset and length combined cannot be greater than buffer length.");
        json.add(buffer.substring(offset, offset + length));
    }

    public void addEntry (String key, Object value) {

}