Java Utililty Methods File Read by Charset

List of utility methods to do File Read by Charset

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Description

The list of methods to do File Read by Charset are organized into topic(s).

Method

StringgetEOL(File file, Charset charset)
get EOL 
String r = null;
try (BufferedReader in = Files.newBufferedReader(file.toPath(), charset)) {
    while (true) {
        int ch = in.read();
        if (ch < 0) {
            break;
        if (ch == '\n' || ch == '\r') {
...
StringgetFileContent(File file, String charsetName)
get File Content 
if (file.isFile()) {
    FileInputStream inf = null;
    FileChannel inc = null;
    StringBuilder content = new StringBuilder();
    try {
        inf = new FileInputStream(file);
        inc = inf.getChannel();
        Charset charset = Charset.forName(charsetName);
...
StringgetFileContents(File file, String charset)
Reads the contents of a text file. 
byte[] bytes = toByteArray(new FileInputStream(file), true);
return new String(bytes, charset);
CharsetgetFileEncodingCharset()
Returns the Charset which is equal to the "file.encoding" property. 
try {
    return Charset.forName(System.getProperty("file.encoding"));
} catch (Throwable t) {
    return Charset.defaultCharset();
StringgetFileText(File file, Charset charset)
Reads a text file completely, using the specified encoding. 
BufferedReader br = null;
try {
    if (!file.exists())
        return "";
    br = new BufferedReader(new InputStreamReader(new FileInputStream(file), charset));
    StringWriter sw = new StringWriter();
    int n;
    char[] cbuf = new char[1024];
...
intgetNumberOfNonEmptyLines(File file, Charset charset)
get Number Of Non Empty Lines 
BufferedReader reader = new BufferedReader(new InputStreamReader(new FileInputStream(file), charset));
try {
    int count = 0;
    String line;
    while ((line = reader.readLine()) != null)
        if (!line.isEmpty())
            ++count;
    return count;
...
CharsetgetPatchFileCharset()
get Patch File Charset 
return Charset.forName("ISO-8859-1");
StringgetPropertiesVaule(File file, String key, Charset charset)
Gets properties vaule. 
if (file == null) {
    return null;
if (charset == null) {
    charset = Charset.forName("ISO8859-1");
Properties properties = new Properties();
FileInputStream fis = null;
...
StringgetString(File file, Charset charset)
Reads a file into a string. 
FileInputStream stream = new FileInputStream(file);
try {
    FileChannel channel = stream.getChannel();
    try {
        MappedByteBuffer buffer = channel.map(FileChannel.MapMode.READ_ONLY, 0, channel.size());
        if (charset == null)
            charset = Charset.defaultCharset();
        return charset.decode(buffer).toString();
...
ListgetUncommentedLines(File file, Charset forName)
get Uncommented Lines 
try {
    List<String> ids = Lists.newArrayList();
    try (BufferedReader br = new BufferedReader(new FileReader(file))) {
        for (String line; (line = br.readLine()) != null;) {
            if (!line.trim().startsWith("#") && !line.trim().isEmpty())
                ids.add(line.trim());
    return ids;
} catch (FileNotFoundException e) {
    throw new IOException(e);