Java Utililty Methods FileInputStream Read

List of utility methods to do FileInputStream Read

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Description

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

Method

InputStreamreadFile(String filePath)
This method reads a file at specfied path and returns its inputStream. 
File file = new File(filePath);
return new FileInputStream(file);
byte[]readFile(String filePath)
Reads a file. 
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 {
...
ObjectreadFile(String filePathName)
read File 
ObjectInputStream oin = null;
try {
    File file = new File(filePathName);
    if (!file.exists()) {
        file.createNewFile();
    oin = new ObjectInputStream(new BufferedInputStream(new FileInputStream(file)));
    Object obj = oin.readObject();
...
byte[]readFile(String fname)
read File 
byte[] ret;
try (FileInputStream fis = new FileInputStream(fname)) {
    ret = readStream(fis);
return ret;
StringreadFile(String fname)
read File 
return readFile(new File(fname), default_encoding);
StringreadFile(String fname)
read File 
try {
    ByteArrayOutputStream baos = new ByteArrayOutputStream();
    copy(new FileInputStream(fname), baos);
    return baos.toString("UTF-8");
} catch (UnsupportedEncodingException e) {
    throw new RuntimeException("Could not read file: " + fname, e);
} catch (IOException e) {
    throw new RuntimeException("Could not read file: " + fname, e);
...
byte[]readFile(String imageName)
read File 
byte[] buf = null;
try {
    File file = new File(imageName);
    buf = new byte[(int) file.length()];
    FileInputStream fis = new FileInputStream(file);
    fis.read(buf);
    fis.close();
} catch (IOException e) {
...
byte[]readFile(String name)
Read whole file. 
return readFile(new File(name));
byte[]readFile(String path)
Reads a given file into a byte array. 
File fileToReade = new File(path);
if (fileToReade.exists()) {
    byte[] buffer = new byte[(int) fileToReade.length()];
    FileInputStream inStream = null;
    try {
        inStream = new FileInputStream(fileToReade);
        inStream.read(buffer);
    } finally {
...
StringReadfile(String path)
Readfile 
try {
    StringBuffer readsb = new StringBuffer();
    InputStream in = new FileInputStream(new File(path));
    ArrayList<String> alist = new ArrayList<String>();
    int count;
    byte[] b = new byte[1024 * 1024];
    while ((count = in.read(b)) != -1) {
        if (count != b.length) {
...