Writers and streams usually buffer some of your output data in memory and try to write it in bigger blocks at a time. flushing will cause an immediate write to disk from the buffer, so if the program crashes that data won’t be lost. Of course there’s no guarantee, as the disk may not physically … Read more
Your code works fine for me. It replaced the text in the file as expected and didn’t append. If you wanted to append, you set the second parameter in new FileWriter(fnew,false); to true;
According to coderanch.com, if we combine the answers we get: FileWriter is the character representation of IO. That means it can be used to write characters. Internally FileWriter would use the default character set of the underlying OS and convert the characters to bytes and write it to the disk. PrintWriter & FileWriter. Similarities Both … Read more
Pass true as a second argument to FileWriter to turn on “append” mode. fout = new FileWriter(“filename.txt”, true); FileWriter usage reference
If you want to get new line characters used in current OS like \r\n for Windows, you can get them by System.getProperty(“line.separator”); since Java7 System.lineSeparator() or as mentioned by Stewart generate them via String.format(“%n”); You can also use PrintStream and its println method which will add OS dependent line separator at the end of your … Read more
Something like: File file = new File(“C:\\user\\Desktop\\dir1\\dir2\\filename.txt”); file.getParentFile().mkdirs(); FileWriter writer = new FileWriter(file);