Method isClosed

lib/java/io/BufferedWriter.java:157–159

Indicates whether this writer is closed. @return true if this writer is closed, false otherwise.

()

     * @return {@code true} if this writer is closed, {@code false} otherwise.
     */
    private boolean isClosed() {
        return out == null;
    }

    /**
     * Writes a newline to this writer. A newline is determined by the System