Example usage for java.io FileInputStream read

Introduction

In this page you can find the example usage for java.io FileInputStream read.

Prototype

public int read(byte b[]) throws IOException

Source Link

Document

Reads up to b.length bytes of data from this input stream into an array of bytes.

Usage

From source file:Main.java

public static void main(String[] args) throws Exception {
    File file = new File("C:/String.txt");
    FileInputStream fin = new FileInputStream(file);

    byte fileContent[] = new byte[(int) file.length()];
    fin.read(fileContent);
    System.out.println(new String(fileContent));
}

From source file:Main.java

public static void main(String[] args) throws IOException {

    byte[] bs = new byte[4];

    FileInputStream fis = new FileInputStream("C://test.txt");

    // read bytes to the buffer
    int i = fis.read(bs);

    System.out.println("Number of bytes read: " + i);
    // for each byte in buffer
    for (byte b : bs) {
        // converts byte to character
        char c = (char) b;
        System.out.println(c);//from   ww w.ja v a  2s  .co m
    }

}

From source file:Main.java

public static void main(String[] argv) throws Exception {
    GZIPOutputStream out = new GZIPOutputStream(new FileOutputStream("outfile.gzip"));
    FileInputStream in = new FileInputStream("infilename");

    byte[] buf = new byte[1024];
    int len;//  w w w . j  a v  a2  s  . com
    while ((len = in.read(buf)) > 0) {
        out.write(buf, 0, len);
    }
    in.close();

    out.finish();
    out.close();
}

From source file:Main.java

public static void main(String[] argv) throws Exception {
    String outFilename = "outfile.gzip";
    GZIPOutputStream out = new GZIPOutputStream(new FileOutputStream(outFilename));

    String inFilename = "infilename";
    FileInputStream in = new FileInputStream(inFilename);

    byte[] buf = new byte[1024];
    int len;//from w w w. ja v  a 2 s.  c  om
    while ((len = in.read(buf)) > 0) {
        out.write(buf, 0, len);
    }
    in.close();

    out.finish();
    out.close();
}

From source file:MainClass.java

public static void main(String[] args) throws Exception {
    if (args.length != 1) {
        System.out.println("Usage: Masher filename");
        return;// ww w .j a va 2 s  .  co m
    }
    MessageDigest md = MessageDigest.getInstance("MD5");
    FileInputStream in = new FileInputStream(args[0]);
    byte[] buffer = new byte[8192];
    int length;
    while ((length = in.read(buffer)) != -1)
        md.update(buffer, 0, length);
    byte[] raw = md.digest();
    BASE64Encoder encoder = new BASE64Encoder();
    String base64 = encoder.encode(raw);
    System.out.println(base64);
}

From source file:Main.java

public static void main(String[] args) throws IOException {
    Deflater def = new Deflater();
    byte[] input = new byte[1024];
    byte[] output = new byte[1024];

    FileInputStream fin = new FileInputStream("a.dat");
    FileOutputStream fout = new FileOutputStream("b.dat");

    int numRead = fin.read(input);

    def.setInput(input, 0, numRead);/*from www . j av a 2 s . c  om*/

    while (!def.needsInput()) {
        int numCompressedBytes = def.deflate(output, 0, output.length);
        if (numCompressedBytes > 0) {
            fout.write(output, 0, numCompressedBytes);
        }
    }
    def.finish();
    fin.close();
    fout.flush();
    fout.close();
    def.reset();
}

From source file:config.MainClass.java

/**
 * @param args the command line arguments
 *//*from   w  w  w. j a va  2 s .  c o  m*/
public static void main(String[] args) {
    // TODO code application logic here
    File file = new File("D:\\iti images\\Dish Party_6-11-2014\\IMG_5376.jpg");
    byte[] bFile = new byte[(int) file.length()];

    try {
        FileInputStream fileInputStream = new FileInputStream(file);
        //convert file into array of bytes
        fileInputStream.read(bFile);
        fileInputStream.close();
    } catch (Exception e) {
        System.out.println("Error in reading the image");
    }
    UserData data = new UserData();
    data.setUserName("hasby allah");
    data.setBirthday(new Date());
    data.setPhone("65656");
    data.setFullName("7asby allah w n3m el wakel");
    data.setAddress("haram");
    data.setPassword("password");
    data.setImage(bFile);
    AbstractApplicationContext fact = new ClassPathXmlApplicationContext("SpringConfig.xml");
    DaoService serviceInterface = fact.getBean(DaoService.class);
    serviceInterface.save(data);
}

From source file:MainClass.java

public static void main(String[] args) {
    File originFile = new File("c:\\file1.txt");
    File destinationFile = new File("c:\\file1.txt");
    if (!originFile.exists() || destinationFile.exists()) {
        return;/*from w  w  w  .  ja  va 2 s .co m*/
    }
    try {
        byte[] readData = new byte[1024];
        FileInputStream fis = new FileInputStream(originFile);
        FileOutputStream fos = new FileOutputStream(destinationFile);
        int i = fis.read(readData);

        while (i != -1) {
            fos.write(readData, 0, i);
            i = fis.read(readData);
        }
        fis.close();
        fos.close();
    } catch (IOException e) {
        System.out.println(e);
    }
}

From source file:Main.java

public static void main(String[] argv) throws Exception {
    String[] filenames = new String[] { "filename1", "filename2" };
    byte[] buf = new byte[1024];
    String outFilename = "outfile.zip";
    ZipOutputStream out = new ZipOutputStream(new FileOutputStream(outFilename));

    for (int i = 0; i < filenames.length; i++) {
        FileInputStream in = new FileInputStream(filenames[i]);
        out.putNextEntry(new ZipEntry(filenames[i]));
        int len;/*www  .  j a  v  a  2  s . c  o  m*/
        while ((len = in.read(buf)) > 0) {
            out.write(buf, 0, len);
        }
        out.closeEntry();
        in.close();
    }
    out.close();
}

From source file:Main.java

public static void main(String[] argv) throws Exception {
    FileInputStream fin = new FileInputStream("text.txt");

    int len;/*from w  w  w  .  java  2  s.com*/
    byte data[] = new byte[16];

    // Read bytes until EOF is encountered.
    do {
        len = fin.read(data);
        for (int j = 0; j < len; j++)
            System.out.printf("%02X ", data[j]);
    } while (len != -1);
}