Java Utililty Methods File to String

List of utility methods to do File to String

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Description

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

Method

StringreadFileAsString(String filePath)
read File As String 
StringBuffer fileData = new StringBuffer(1000);
BufferedReader reader = new BufferedReader(new FileReader(filePath));
char[] buf = new char[1024];
int numRead = 0;
while ((numRead = reader.read(buf)) != -1) {
    String readData = String.valueOf(buf, 0, numRead);
    fileData.append(readData);
    buf = new char[1024];
...
StringreadFileAsString(String filePath)
File as string [See also MixupUtil.fileToText(File file), which return the file's content and subject line as a concat. 
try {
    StringBuffer fileData = new StringBuffer(1000);
    BufferedReader reader = new BufferedReader(new FileReader(filePath));
    char[] buf = new char[1024];
    int numRead = 0;
    while ((numRead = reader.read(buf)) != -1) {
        String readData = String.valueOf(buf, 0, numRead);
        fileData.append(readData);
...
StringreadFileAsString(String filePath)
read File As String 
byte[] buffer = new byte[(int) new File(filePath).length()];
BufferedInputStream f = null;
try {
    f = new BufferedInputStream(new FileInputStream(filePath));
    f.read(buffer);
} finally {
    if (f != null) {
        try {
...
StringreadFileAsString(String filePath)
read File As String 
File inFile = new File(filePath);
BufferedReader reader = new BufferedReader(new FileReader(inFile));
int cap = (int) inFile.length();
if (inFile.length() > Integer.MAX_VALUE) {
    cap = Integer.MAX_VALUE;
StringBuffer fileData = new StringBuffer(cap);
char[] buf = new char[32 * 1024];
...
StringreadFileAsString(String filePathname)
read File As String 
StringBuffer sb = new StringBuffer();
BufferedReader in = null;
try {
    in = new BufferedReader(new FileReader(filePathname));
    String str;
    while ((str = in.readLine()) != null) {
        sb.append(str + "\n");
} finally {
    if (in != null) {
        in.close();
return sb.toString();
StringreadFileAsString(String fname)
read File As String 
return readFile(new File(fname), true);
StringreadFileAsString(String fname)
read File As String 
return new String(readFile(fname));
StringreadFileAsString(String fpath)
read File As String 
final BufferedReader brdr = new BufferedReader(new FileReader(fpath));
final StringBuilder sr = new StringBuilder(fpath.length());
String s = null;
try {
    while ((s = brdr.readLine()) != null) {
        sr.append(s).append('\n');
} finally {
...
StringreadFileAsString(String path)
Given the path to a file (e.g. 
StringBuffer sb = new StringBuffer(1000);
BufferedReader reader = new BufferedReader(new FileReader(path));
char[] buf = new char[1024];
int numRead = 0;
while ((numRead = reader.read(buf)) != -1) {
    sb.append(buf, 0, numRead);
reader.close();
...
ListreadFileAsString(String path)
read File As String 
BufferedReader reader = new BufferedReader(new InputStreamReader(new FileInputStream(new File(path))));
try {
    List<String> list = new ArrayList<>();
    String line = reader.readLine();
    while (line != null) {
        list.add(line);
        line = reader.readLine();
    return list;
} finally {
    if (reader != null) {
        reader.close();