file transfer - Java BufferedOutputStream.flush() doesn't flush - Stack Overflow
Java - the difference between BufferedWriter.write() and System.out.println()? - Stack Overflow
Java OutputStream (With Example)
image017.png
What is the output of System.out.println (0123)? - Quora
Spring Data JPA: Persist Vs Flush | by Suraj Mishra | Javarevisited | Medium
java - System.out.print("Calculator ") doesn't show an output when it is followed with a Scanner or BufferReader which takes a System.in in IntelliJ IDEA - Stack Overflow