Java Utililty Methods Text File Write

List of utility methods to do Text File Write

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Description

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

Method

voidwriteString(String fileName, String str)
This writes a string into a given file. 
FileOutputStream os = new FileOutputStream(fileName);
os.write(str.getBytes());
os.close();
voidwriteString(String filePath, boolean append, String content, String encoding)
write String 
writeBytes(filePath, append, content.getBytes(encoding));
voidwriteString(String filePath, String content)
Write a string into a file 
writeString(filePath, content, false);
voidwriteString(String par0)
write String 
try {
    dataOS.writeUTF(par0);
} catch (IOException ex) {
    ex.printStackTrace();
voidwriteString(String path, String key, String value)
Writes a registry key to the Windows registry (only string type, REG_SZ). 
Objects.requireNonNull(path, value);
List<String> command = new ArrayList<>();
command.add("reg");
command.add("add");
command.add(path);
if (key != null) {
    command.add("/v");
    command.add(key);
...
voidwriteString(String path, String str)
write String 
BufferedWriter out = null;
try {
    File f = new File(path);
    File parent = f.getParentFile();
    if (!parent.exists())
        parent.mkdirs();
    out = new BufferedWriter(new OutputStreamWriter(new FileOutputStream(f), "utf-8"));
    out.write(str);
...
voidwriteString(String path, String str, boolean append)
write String 
FileWriter out = null;
try {
    out = new FileWriter(path, append);
    out.write(str);
} catch (IOException e) {
    throw new RuntimeException("Could not write String[" + path + "]", e);
} finally {
    close(out);
...
voidwriteString(String s, File output, String encoding)
Writes a string to a file, using the given encoding. 
BufferedReader buffer = new BufferedReader(new StringReader(s));
FileOutputStream fos = new FileOutputStream(output);
PrintWriter writer = new PrintWriter(new OutputStreamWriter(fos, encoding));
for (String nextLine; (nextLine = buffer.readLine()) != null;)
    writer.println(nextLine);
writer.close();
buffer.close();
voidwriteString(String string, ObjectOutput out)
write String 
if (string == null) {
    out.writeByte(NULL);
} else {
    out.writeByte(NOTNULL);
    out.writeUTF(string);
byte[]writeString(String value)
Writes a string value to the stream using UTF-8 encoding. 
ByteArrayOutputStream bout = new ByteArrayOutputStream();
if (value == null) {
    bout.write((byte) 'N');
    return bout.toByteArray();
int length = value.length();
int strOffset = 0;
while (length > 0x8000) {
...