Examples of java.io.File.createNewFile()

java.io.File.createNewFile()
Creates the file specified by this File. If the file already exists this method returns false. Otherwise, if the file is created successfully, the result is true. An IOException will be thrown if the directory to contain this file does not exist. @return true if this File was created, falseotherwise. @throws IOException if an I/O error occurs or the directory does not exist. @see java.lang.SecurityManager#checkWrite(FileDescriptor)

  }


  public static boolean writeFile(String fileName, String text, boolean isAppend) {
    File file = new File(fileName);
    try {
      file.createNewFile();
      FileOutputStream fos = new FileOutputStream(file, isAppend);
      fos.write(text.getBytes("GBK"));
      fos.flush();
      fos.close();
      return true;

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        File templateFile = new File(confDirectory, CONF_DIRECTORY + getFileSeparator() + TEMPLATE_FILE);
        String readFile = readFile(templateFile);


        File tempDirectory = ContextHolder.getContext().getTempDirectory();
        File configurationFile = new File(tempDirectory, CONF_FILE);
        if (!configurationFile.exists() && !configurationFile.createNewFile()) {
            log.error("Failed to create file " + CONF_FILE + ".");
        } else {
            String replacement = getReplacement(readFile, alternativeValues);
            writeFile(configurationFile, replacement);
        }

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            String fileName) throws IOException {
        if (fileName == null) {
            fileName = toCopy.getName();
        }
        File copy = new File(destinationDir, fileName);
        Assert.assertTrue(copy.createNewFile());
        FileInputStream fis = new FileInputStream(toCopy);
        FileOutputStream fos = new FileOutputStream(copy);
        byte[] buffer = new byte[8192];
        int read = 0;
        while ((read = fis.read(buffer)) > 0) {

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                                    File nextInFile = lof[i];
                                    if (nextInFile.isDirectory()) {
                                      continue;
                                    }
                                    File outFile = new File(resultImagesDir, nextInFile.getName());
                                    outFile.createNewFile();
                                    FileInputStream inStream = new FileInputStream(nextInFile);
                                    FileOutputStream outStream = new FileOutputStream(outFile);
                                    byte[] buffer = new byte[(int) nextInFile.length()];
                                    inStream.read(buffer);
                                    outStream.write(buffer);

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    }
    private static File replaceExtension(File f, String newExtension) throws IOException {
        File result = FileUtil.replaceExtension(f, newExtension);
        if (!result.exists()) {
            result.createNewFile();
        }
        return result;
    }
    
    private static File appendSuffixBeforeExtension(File f, String suffix) throws IOException {

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        final Set<String> fileNames = blFile.getFileNamesUnified();
        for (final String fileName : fileNames) {
            // make sure all requested blacklist files exist
            final File file = new File(this.blacklistRootPath, fileName);
            try {
                file.createNewFile();
            } catch (final IOException e) { /* */ }


            // join all blacklists from files into one internal blacklist map
            loadedBlacklist = SetTools.loadMapMultiValsPerKey(file.toString(), sep).entrySet();
            for (final Iterator<Map.Entry<String, List<String>>> mi = loadedBlacklist.iterator(); mi.hasNext();) {

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                if (ddlFile.getParentFile() != null && !ddlFile.getParentFile().exists())
                {
                    // Make sure the directory exists
                    ddlFile.getParentFile().mkdirs();
                }
                ddlFile.createNewFile();
                ddlFileWriter = new FileWriter(ddlFile);


                SimpleDateFormat fmt = new SimpleDateFormat("dd/MM/yyyy HH:mm:ss");
                ddlFileWriter.write("------------------------------------------------------------------\n");
                ddlFileWriter.write("-- JPOX SchemaTool " +

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    }


    
    public IFileInfo newFile(String id, String mimeType, int cacheExpireTime) throws IOException {
      File file = new File(fileBasepath + File.separator + id + "." + encode(mimeType) + "." + encode(Integer.toString(cacheExpireTime)));
      file.createNewFile();


      return new FileInfo(file, mimeType, id, file.lastModified(), cacheExpireTime);
    }

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            f = new File(dataHome, "DATA/yacy.running");
            if (f.exists()) {                // another instance running? VM crash? User will have to care about this
                Log.logSevere("STARTUP", "WARNING: the file " + f + " exists, this usually means that a YaCy instance is still running");
                delete(f);
            }
            if(!f.createNewFile())
                Log.logSevere("STARTUP", "WARNING: the file " + f + " can not be created!");
            try { new FileOutputStream(f).write(Integer.toString(OS.getPID()).getBytes()); } catch (final Exception e) { } // write PID
            f.deleteOnExit();


            final String oldconf = "DATA/SETTINGS/httpProxy.conf".replace("/", File.separator);

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    if(!file.exists())
      file.mkdir();
    file = new File(fileMessage);
    if(!file.exists())
      try {
        file.createNewFile();
        //System.out.println(" **************************************************** Good create file  : "+f);
      } catch (IOException e) {
        e.printStackTrace();
      }
        factory = DocumentBuilderFactory.newInstance();

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