1. flush() java file handling stackoverflow.comWhat is the exact use of flush()? What is the difference between stream and buffer? Why do we need buffer? |
2. I/O concept flush vs sync stackoverflow.comI have come across these two terms and my understanding of them seem to overlap with each other. Flush is used with buffers and sync is used to talk about persisting ... |
3. what happens in out.flush() ??? coderanch.comHi there, following is a code to display the messages entered by a user in the keyboard. import java.io.*; public class InputTranslator { public static void main(String args[]) throws IOException { BufferedReader inStream = new BufferedReader(new InputStreamReader(System.in)); String inputLine; do { System.out.println(">"); System.out.flush(); inputLine=inStream.readLine(); System.out.println("your message is:" +inputLine); }while(inputLine.length()!=0); } } In this program, even if I comment the line System.out.flush(), ... |
4. Can we flush the contents of a file coderanch.com |
5. Capturing Terminal Window Text (overloading flush()?) coderanch.com |
6. flushing /closing buffers? coderanch.comhi.. I have a small problem. In my program, when I open a file then process that data...it works, but, if I then go and open another file, and process this new files data, the old files data is what shows up. I'm guessing I need to fluch the old data out of the buffer... but how. I can't use .flush ... |
7. flush() and memory coderanch.comHi there, flush() forces any buffered output characters to be written out, else it will consume memory resource. 1. How do I know, size of the buffer I can read data into, before I invoke flush(). ex. PrintWriter out = PrintWriter() out.flush(); 2. How do I know, how much memory resource it is taking, if I don't flush(). Specially in UNIX. ... |
8. write() without immediate flush() losing data... coderanch.comI think I'm missing something subtle (hmmm... hopefully it's obvious...) in writing output to multiple files. The code below works --- but only after adding the .flush() method after the write() methods. Using the .flush() prior to closing the files did not work. Without the .flush() after the write only two of the four files would contain the header text after ... |
9. flush() coderanch.comOriginally posted by memati bas: Yes, it increases the efficiency by having readLine method... Ummmm.... no, not so much. First, you probably realize that reading or writing data from a file or network connection is generally a slow operation compared to reading from memory. It's also true in general that reading or writing a thousand bytes from a disk ... |
10. FLUSH coderanch.com |
11. Calling flush() coderanch.comI'm curious to know if there are any effects to calling flush() in different parts of the code. For example the code below calls flush outside the while loop. Would it make any difference to call flush inside the while loop immediately after the os.write method? try { is = new BufferedInputStream(fileItem.getInputStream()); os = new BufferedOutputStream(new FileOutputStream(new File("C:\\" + fileName))); byte[] ... |
12. flush() /close() coderanch.comIt can happen, yes. You should always close() a stream when you're done with it. Even if sometimes it seems like it's not necessary - your program will be more reliable if you call close(). (Preferably in a finally block.) Calling close() also calls flush(), so you don't need to call both. |