Java Utililty Methods Text File Read by Charset

List of utility methods to do Text File Read by Charset

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Description

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

Method

BufferedReadergetReader(InputStream in, String charsetName)
get Reader 
return getReader(in, Charset.forName(charsetName));
BufferedReadergetReader(InputStream is, String charset)
get Reader 
return new BufferedReader(new InputStreamReader(is, Charset.forName(charset)));
ReadergetReader(String fileName, Charset cs)
get Reader 
Reader reader = null;
try {
    reader = new BufferedReader(new InputStreamReader(new FileInputStream(fileName), cs));
} catch (FileNotFoundException e) {
    e.printStackTrace();
return reader;
BufferedReadergetReader(String path, Charset encoding)
Returns a reader that uses the given encoding. 
return new BufferedReader(new InputStreamReader(new FileInputStream(new File(path)), encoding));
booleaninferCharset(byte[] bytes, int bytesRead, Charset clientCharset)
Try to determine whether a byte buffer's character encoding is that of the passed-in charset. 
ByteBuffer byteBuf = ByteBuffer.wrap(bytes, 0, bytesRead);
CharBuffer charBuf = CharBuffer.allocate(byteBuf.capacity() * 2);
if (clientCharset != null) {
    CharsetDecoder decoder = clientCharset.newDecoder();
    decoder.onMalformedInput(CodingErrorAction.REPORT);
    decoder.onUnmappableCharacter(CodingErrorAction.REPORT);
    CoderResult coderResult = decoder.decode(byteBuf, charBuf, false);
    if (coderResult != null) {
...
CharsetDecoderinitDecoder(Charset charset, ThreadLocal> localDecoder)
init Decoder 
CharsetDecoder decoder = charset.newDecoder();
decoder.onMalformedInput(CodingErrorAction.REPLACE).onUnmappableCharacter(CodingErrorAction.REPLACE);
localDecoder.set(new SoftReference<CharsetDecoder>(decoder));
return decoder;
StringinputStreamToString(InputStream input, Charset charset, boolean closeInputAfterRead)
Reads the input stream till the end and return the reading as a string. 
StringBuilder sb = new StringBuilder();
BufferedReader reader = new BufferedReader(new InputStreamReader(input, charset));
String line = null;
while ((line = reader.readLine()) != null) {
    if (sb.length() > 0) {
        sb.append("\n");
    sb.append(line);
...
BufferedReadernewBufferedFileReader(File file, Charset charset)
new Buffered File Reader 
return new BufferedReader(new InputStreamReader(new FileInputStream(file), charset));
BufferedReadernewBufferedReader(URL url, Charset cs)
Opens the given url for reading returning a BufferedReader that may be used to read text from the URL in an efficient manner. 
CharsetDecoder decoder = cs.newDecoder();
Reader reader = new InputStreamReader(url.openStream(), decoder);
return new BufferedReader(reader);
BufferedReadernewReader(File file, Charset charset)
new Reader 
checkNotNull(file);
checkNotNull(charset);
return new BufferedReader(new InputStreamReader(new FileInputStream(file), charset));