Java Utililty Methods Text File Write nio

List of utility methods to do Text File Write nio

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Description

The list of methods to do Text File Write nio are organized into topic(s).

Method

voidwriteFileContents(File file, String content)
write File Contents 
writeFileContents(file, content, Boolean.TRUE);
voidwriteFileTxt(String fileName, String[] totalFile)
Method to get the file name (or path relative to the directory) and file to write to in the form of an array of strings where each string represents a line. 
try (final Writer writer = Files.newBufferedWriter(Paths.get(fileName), Charset.forName("UTF-8"));
        PrintWriter pw = new PrintWriter(writer)) {
    for (String file : totalFile) {
        pw.println(file);
voidwriteHeader(DataOutput data, String header)
write Header 
byte[] bytes = header.getBytes(Charset.forName("US-ASCII"));
data.write(bytes);
data.writeByte(NUL);
voidwriteIfSet(final OutputStream outputStream, final String field, final String value)
write If Set 
if (null != value) {
    write(outputStream, field);
    write(outputStream, value);
    writeSeparator(outputStream);
voidwriteLine(final CharBuffer line, final CharBuffer output)
Copies a non-header line to the output buffer. 
final String s = line.flip().toString();
if (!(s.startsWith(HEADER_BEGIN) || s.startsWith(FOOTER_END) || s.startsWith(PROC_TYPE)
        || s.startsWith(DEK_INFO) || s.trim().length() == 0)) {
    output.put(line);
line.clear();
voidwriteLines(Collection lines, File file)
write Lines 
Files.write(file.toPath(), lines, StandardCharsets.UTF_8);
voidwriteLines(File file, Iterable lines)
Writes lines to a file using UTF-8, overwriting its current contents if it has any. 
FileOutputStream stream = new FileOutputStream(file);
BufferedWriter writer = new BufferedWriter(new OutputStreamWriter(stream, StandardCharsets.UTF_8),
        BUFFER_SIZE);
try {
    for (String line : lines) {
        writer.write(line);
        writer.write('\n');
} catch (IOException x) {
    throw x;
} finally {
    try {
        stream.close();
    } catch (IOException x) {
voidwriteLines(String fileName, String[] lines)
Writes the lines into the file 
BufferedWriter writer = new BufferedWriter(
        new OutputStreamWriter(new FileOutputStream(fileName), Charset.defaultCharset()));
for (int i = 0; i < lines.length; i++) {
    writer.write(lines[i]);
    writer.newLine();
writer.flush();
writer.close();
...
voidwriteLinesToFile(final File file, final String... lines)
Write lines to a file. 
try (final Writer writer = new OutputStreamWriter(new FileOutputStream(file), StandardCharsets.UTF_8)) {
    for (final String line : lines) {
        writer.write(line);
        writer.write(NEW_LINE);
voidwriteString(DataOutput dataOutput, String string)
write String 
if (string == null) {
    writeBytes(dataOutput, null);
} else {
    final byte[] bytes = string.getBytes(UTF_8);
    writeBytes(dataOutput, bytes);