Method flush

lib/java/io/PrintStream.java:262–273

Ensures that all pending data is sent out to the target stream. It also flushes the target stream. If an I/O error occurs, this stream's error state is set to true.

()

     * state is set to {@code true}.
     */
    @Override
    public synchronized void flush() {
        if (out != null) {
            try {
                out.flush();
                return;
            } catch (IOException e) {
                // Ignored, fall through to setError
            }
        }
        setError();
    }

    /**
     * Writes a string formatted by an intermediate {@code Formatter} to the