Java Utililty Methods Write String to File

PrintStream out = new PrintStream(new FileOutputStream(file));
for (String line : lines)
    out.println(line);
out.flush();
out.close();

writeFile(file, buffer.toString());

try {
    FileWriter fw = new FileWriter(filename);
    for (int i = 0; i < lines.size(); i++)
        fw.write((String) lines.get(i) + "\n");
    fw.close();
} catch (IOException e) {
    System.err.println("error writing file");
    e.printStackTrace();
...

try {
    if (file.exists()) {
        file.delete();
    final File parent = file.getParentFile();
    if (!parent.exists()) {
        parent.mkdirs();
    final FileWriter fw = new FileWriter(file);
    fw.write(content);
    fw.close();
    return file;
} catch (final IOException e) {
    throw new RuntimeException("Error in tests!", e);

final File dir = file.getParentFile();
if (dir != null && !dir.isDirectory() && !dir.mkdirs())
    throw new IOException("Could not make " + dir);
final FileWriter writer = new FileWriter(file);
writer.write(contents);
writer.close();

final File result = new File(file.getAbsoluteFile().getParentFile(), file.getName() + ".new");
final FileOutputStream out = new FileOutputStream(result);
out.write(contents.getBytes());
out.close();
result.renameTo(file);

final FileOutputStream fos = new FileOutputStream(iFile);
try {
    final OutputStreamWriter os = new OutputStreamWriter(fos);
    try {
        final BufferedWriter writer = new BufferedWriter(os);
        try {
            writer.write(iContent);
        } finally {
...

FileWriter fw = null;
Writer writer = null;
try {
    fw = new FileWriter(absoluteFileName, append);
    writer = new BufferedWriter(fw);
    writer.write(content);
} finally {
    if (writer != null)
...

BufferedWriter fr = new BufferedWriter(new OutputStreamWriter(new FileOutputStream(aFileName), "UTF8"));
fr.write(aContent);
fr.close();

boolean lStatus = false;
try {
    FileWriter lWriter = new FileWriter(aInFilePath);
    lWriter.append(aInContent);
    lWriter.flush();
    lWriter.close();
    lStatus = true;
} catch (Exception ex) {
...