Java Utililty Methods BufferedReader Read

List of utility methods to do BufferedReader Read

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Description

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

Method

StringreadFile(File file)
This method read a whole file and return the content. 
if (!file.exists()) {
    throw new IllegalArgumentException("Illegal path: unexisting");
if (!file.isFile()) {
    throw new IllegalArgumentException("Illegal path: not a dfile");
FileReader fr = null;
BufferedReader reader = null;
...
StringreadFile(File file)
read File 
try (BufferedReader reader = new BufferedReader(new FileReader(file))) {
    String linesep = System.lineSeparator();
    StringBuilder sb = new StringBuilder();
    boolean first = true;
    String line;
    while ((line = reader.readLine()) != null) {
        if (first) {
            sb.append(line);
...
String[]readFile(File file)
read File 
ArrayList<String> done = new ArrayList<String>();
try (BufferedReader br = new BufferedReader(new FileReader(file))) {
    String current;
    while ((current = br.readLine()) != null) {
        done.add(current);
} catch (IOException e) {
    e.printStackTrace();
...
StringBufferreadFile(File file)
Read a file fully into a string buffer. 
StringBuffer buf = new StringBuffer();
if (null == file) {
    return null;
if (!file.exists() || !file.canRead()) {
    throw new IOException("Error! File is not accessible : " + file);
BufferedReader reader = new BufferedReader(new FileReader(file));
...
StringreadFile(File file)
read File 
FileReader fileReader = new FileReader(file);
BufferedReader bufferedReader = new BufferedReader(fileReader);
StringBuilder stringBuilder = new StringBuilder();
String line;
while ((line = bufferedReader.readLine()) != null) {
    stringBuilder.append(line).append("\n");
fileReader.close();
...
StringreadFile(File file)
read File 
StringBuffer stringBuffer = new StringBuffer();
try {
    BufferedReader in = new BufferedReader(new FileReader(file));
    try {
        char[] buffer = new char[1024];
        int size = 0;
        while ((size = in.read(buffer)) > -1) {
            stringBuffer.append(buffer, 0, size);
...
StringreadFile(File file)
read File 
StringBuilder result = new StringBuilder();
BufferedReader fileReader = new BufferedReader(new FileReader(file));
String line = new String();
while ((line = fileReader.readLine()) != null) {
    result.append(line).append("\n");
fileReader.close();
return result.toString();
...
StringreadFile(File file)
Reads a file into a String 
BufferedReader in = new BufferedReader(new FileReader(file));
String line = "";
while ((line += in.readLine()) != null)
    ;
return line;
StringreadFile(File file)
read File 
BufferedReader fr = new BufferedReader(new FileReader(file));
try {
    StringBuilder sb = new StringBuilder();
    String line;
    while ((line = fr.readLine()) != null)
        sb.append(line).append("\n");
    return sb.toString();
} finally {
...
StringreadFile(File file)
read File 
StringWriter out = new StringWriter();
FileInputStream in = null;
try {
    in = new FileInputStream(file);
    int i;
    while ((i = in.read()) != -1) {
        out.write(i);
} finally {
    in.close();
return out.toString();