It flushes the underlying stream. The behaviour of this method depends upon the flag
isFlushEndIf the flag is set then call to this method is taken to indicate that no more data is to written to this stream with base64 encoding and hence padding is done if required as per base64 rules. If the flag is not set, then it just flushes the underlying stream.
Base64OutputStream Class | de.osci.osci12.common Namespace