How to write new line character to a file in Java

by

In EDIT 2:

while((line = bufferedReader.readLine()) != null)
{
  sb.append(line); //append the lines to the string
  sb.append('\n'); //append new line
} //end while

you are reading the text file, and appending a newline to it. Don’t append newline, which will not show a newline in some simple-minded Windows editors like Notepad. Instead append the OS-specific line separator string using:

sb.append(System.lineSeparator()); (for Java 1.7 and 1.8)
or
sb.append(System.getProperty("line.separator")); (Java 1.6 and below)

Alternatively, later you can use String.replaceAll() to replace "\n" in the string built in the StringBuffer with the OS-specific newline character:

String updatedText = text.replaceAll("\n", System.lineSeparator())

but it would be more efficient to append it while you are building the string, than append '\n' and replace it later.

Finally, as a developer, if you are using notepad for viewing or editing files, you should drop it, as there are far more capable tools like Notepad++, or your favorite Java IDE.

More Related Contents:

  1. Split Java String by New Line
  2. How do I get a platform-dependent new line character?
  3. How to remove line breaks from a file in Java?
  4. What’s up with Java’s “%n” in printf?
  5. How do I format a String in an email so Outlook will print the line breaks?
  6. What are the differences between char literals ‘\n’ and ‘\r’ in Java?
  7. Do line endings differ between Windows and Linux? [closed]
  8. Strings written to file do not preserve line breaks
  9. Problems with newline in Graphics2D.drawString
  10. Java Regex – Using String’s replaceAll method to replace newlines
  11. How can I print a string adding newlines in Java?
  12. Creating Properties object in Java
  13. How do I discover memory usage of my application in Android?
  14. Running code in main thread from another thread
  15. What is the size of a boolean variable in Java?
  16. When and why JPA entities should implement the Serializable interface?
  17. Tomcat 404 error: The origin server did not find a current representation for the target resource or is not willing to disclose that one exists [duplicate]
  18. How to convert String to long in Java?
  19. Can you explain the HttpURLConnection connection process?
  20. How to stop a scheduled task that was started using @Scheduled annotation?
  21. Waiting on multiple threads to complete in Java
  22. How do I exit a while loop in Java?
  23. How to escape the backslashes and the automatically generated escape character in file path in java
  24. java.util.scanner throws NoSuchElementException when application is started with gradle run
  25. Configure Spring Boot for SPA frontend
  26. HttpURLConnection setConnectTimeout() has no effect
  27. What’s causing these ParseError exceptions when reading off an AWS SQS queue in my Storm cluster
  28. javax.servlet.ServletException: bean [name] not found within scope
  29. How to call a user defined Matlab from Java using matlabcontrol.jar
  30. Java serialization, ObjectInputStream.readObject(), check if will block

Leave a Comment