Java Utililty Methods File Append

List of utility methods to do File Append

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Description

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

Method

voidappendFile(File src, File dst)
append File 
copyOrAppend(src, dst, true);
voidappendFile(File targetFile, String text)
Appends the given String to the end of a file. 
BufferedWriter writer = new BufferedWriter(new FileWriter(targetFile));
writer.append(text);
writer.flush();
writer.close();
voidappendFile(File targetFile, String toWrite)
Opens a file (targetFile) and appends a String (toWrite) to it 
if (!targetFile.exists()) {
    if (!targetFile.createNewFile())
        throw new Exception("File was not created!");
if (!targetFile.canWrite())
    throw new Exception("No permission to write file!");
else {
    try {
...
voidappendFile(final File srcFile, final File destFile)
This method append the src file to dest file. 
InputStream in = null;
in = new FileInputStream(srcFile);
final FileOutputStream out = new FileOutputStream(destFile, true);
final byte[] buf = new byte[1024];
int len;
while ((len = in.read(buf)) > 0) {
    out.write(buf, 0, len);
if (in != null) {
    in.close();
if (out != null) {
    out.close();
voidappendFile(final String filename, final String content)
append File 
FileOutputStream output = new FileOutputStream(filename, true);
BufferedWriter writer = new BufferedWriter(new OutputStreamWriter(output));
writer.write(content);
writer.close();
output.close();
voidappendFile(final String name, final String s)
Writes to the file with the given name 
writeFile(name, s, true);
voidappendFile(OutputStream output, File source)
append File 
InputStream input = null;
try {
    input = new BufferedInputStream(new FileInputStream(source));
    byte[] buf = new byte[1024];
    int len;
    while ((len = input.read(buf)) > 0) {
        output.write(buf, 0, len);
} finally {
    input.close();
voidappendFile(String content, File file)
append File 
BufferedWriter writer = new BufferedWriter(new FileWriter(file, true));
writer.write(content);
writer.newLine();
writer.close();
voidappendFile(String file, byte[]... data)
append File 
try (FileOutputStream fos = new FileOutputStream(file, true)) {
    for (byte[] d : data) {
        fos.write(d);
} catch (IOException ex) {
voidappendFile(String file, String content)
Append 'content' in 'dir'/'file' 
try (PrintWriter out = new PrintWriter(new BufferedWriter(new FileWriter(file, true)))) {
    out.println(content);
    out.close();
} catch (Exception e) {
    e.printStackTrace();