filewriter

I have to write the content of textarea into a file with line breaks. I got the output like, it is written as one string in the file. public void actionPerformed(ActionEvent ev) { text.setVisible(true); String str= text.getText(); System.out.println(str); try { BufferedWriter fileOut = new BufferedWriter(new FileWriter("filename.txt")); fileOut.write(str); fileOut.close(); } catch (IOException ioe) { ioe.printStackTrace(); } } Example Output should be: I am King. but it is showing: IamKing. Please get me some suggestions Use JTextComponent.write(Writer) : Stores the contents of the model into

I want to write a new file with the FileWriter . I use it like this: FileWriter newJsp = new FileWriter("C:\\user\Desktop\dir1\dir2\filename.txt"); Now dir1 and dir2 currently don't exist. I want Java to create them automatically if they aren't already there. Actually Java should set up the whole file path if not already existing. How can I achieve this? Something like: File file = new File("C:\\user\\Desktop\\dir1\\dir2\\filename.txt"); file.getParentFile().mkdirs(); FileWriter writer = new FileWriter(file); Since Java 1.7 you can use Files.createFile: Path pathToFile = Paths.get("/home/joe

I have a question in my mind that, while writing into the file, before closing is done, should we include flush()??. If so what it will do exactly? dont streams auto flush?? EDIT: So flush what it actually do? 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 write the data immediately, so it could still be lost. But then it wouldn't be the Java

Are PrintWriter and FileWriter in Java the same and no matter which one to use? So far I have used both because their results are the same. Is there some special cases where it makes sense to prefer one over the other? public static void main(String[] args) { File fpw = new File("printwriter.txt"); File fwp = new File("filewriter.txt"); try { PrintWriter pw = new PrintWriter(fpw); FileWriter fw = new FileWriter(fwp); pw.write("printwriter text\r\n"); fw.write("filewriter text\r\n"); pw.close(); fw.close(); } catch (IOException e) { // TODO Auto-generated catch block e.printStackTrace(); } }

I want to delete some content of file using java program as below. Is this the write method to replace in the same file or it should be copied to the another file. But its deleting the all content of the file. class FileReplace { ArrayList<String> lines = new ArrayList<String>(); String line = null; public void doIt() { try { File f1 = new File("d:/new folder/t1.htm"); FileReader fr = new FileReader(f1); BufferedReader br = new BufferedReader(fr); while (line = br.readLine() != null) { if (line.contains("java")) line = line.replace("java", " "); lines.add(line); } FileWriter fw = new

I have coded the following FileWriter : try { FileWriter writer = new FileWriter(new File("file.txt"), false); String sizeX = jTextField1.getText(); String sizeY = jTextField2.getText(); writer.write(sizeX); writer.write(sizeY); writer.flush(); writer.close(); } catch (IOException ex) {} Now I want to insert a new line, just like you would do it with \n normally, but it doesn't seem to work. What can be done to solve this? Thank you. 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