Java Utililty Methods InputStreamReader Read

List of utility methods to do InputStreamReader Read

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Description

The list of methods to do InputStreamReader Read are organized into topic(s).

Method

StringreadFile(File file, String encoding)
Helper method to read the file's content into a String 
InputStreamReader in = new InputStreamReader(new FileInputStream(file), encoding);
BufferedReader reader = new BufferedReader(in);
StringBuilder fileContent = new StringBuilder();
String line = reader.readLine();
while (line != null) {
    fileContent.append(line).append('\n');
    line = reader.readLine();
return fileContent.toString();
StringreadFile(File file, String encoding)
read File 
InputStream inputStream = new FileInputStream(file);
return toString(encoding, inputStream);
StringreadFile(File filename)
read File 
StringBuilder result = new StringBuilder();
InputStream ips = new FileInputStream(filename);
InputStreamReader ipsr = new InputStreamReader(ips);
try (BufferedReader br = new BufferedReader(ipsr)) {
    String line;
    while ((line = br.readLine()) != null) {
        result.append(line).append("\n");
return result.toString();
StringreadFile(File path)
Reads the entire contents of the file at the given path and returns it as a String. 
InputStreamReader reader = null;
try {
    StringWriter writer = new StringWriter();
    reader = new InputStreamReader(new FileInputStream(path));
    int n;
    char[] buffer = new char[BUFFER_SIZE];
    while ((n = reader.read(buffer)) != -1) {
        writer.write(buffer, 0, n);
...
StringreadFile(File resultFile)
read File 
StringBuilder result = new StringBuilder();
InputStream fileIn = new FileInputStream(resultFile);
try {
    BufferedReader reader = new BufferedReader(new InputStreamReader(fileIn));
    try {
        String line;
        while ((line = reader.readLine()) != null) {
            result.append(line);
...
StringBufferreadFile(File target)
Return a buffer containing the contents of the file at the specified location. 
return readFile(new FileInputStream(target));
StringreadFile(FileInputStream file)
Reads an entire file into a string. 
BufferedReader reader = new BufferedReader(new InputStreamReader(file, "UTF-8"));
StringBuilder builder = new StringBuilder();
String line;
while ((line = reader.readLine()) != null) {
    builder.append(line);
reader.close();
return builder.toString();
...
StringreadFile(final File file)
read File 
final StringBuilder sb = new StringBuilder();
try (final BufferedReader reader = new BufferedReader(new InputStreamReader(new FileInputStream(file)))) {
    String line = null;
    while ((line = reader.readLine()) != null) {
        sb.append(line);
        sb.append("\n");
return sb.toString();
StringreadFile(final File inputFile)
read File 
InputStreamReader in = null;
try {
    in = new InputStreamReader(new FileInputStream(inputFile), "US-ASCII");
    StringBuilder builder = new StringBuilder();
    final char[] buf = new char[1024];
    int len;
    while ((len = in.read(buf)) > 0) {
        builder.append(buf, 0, len);
...
BufferedReaderreadFile(final String aFileName)
read File 
final InputStream stream = new FileInputStream(aFileName);
return new BufferedReader(new InputStreamReader(stream));