Example usage for java.io FileInputStream FileInputStream

Introduction

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

Prototype

public FileInputStream(FileDescriptor fdObj)

Source Link

Document

Creates a FileInputStream by using the file descriptor fdObj, which represents an existing connection to an actual file in the file system.

Usage

From source file:Main.java

public static void main(String[] args) {
    File file = new File(args[0]);
    if (!file.exists()) {
        System.out.println(args[0] + " does not exist.");
        return;/* www .  jav  a2s.co  m*/
    }
    if (!(file.isFile() && file.canRead())) {
        System.out.println(file.getName() + " cannot be read from.");
        return;
    }
    try {
        FileInputStream fis = new FileInputStream(file);
        char current;
        while (fis.available() > 0) {
            current = (char) fis.read();
            System.out.print(current);
        }
    } catch (IOException e) {
        e.printStackTrace();
    }
}

From source file:MainClass.java

public static void main(String[] args) throws Exception {
    XMLInputFactory inputFactory = XMLInputFactory.newInstance();
    XMLStreamReader reader = inputFactory.createXMLStreamReader(new FileInputStream(new File("l.xml")));
    reader = inputFactory.createFilteredReader(reader, new ElementOnlyFilter());
    System.out.println(reader.getEventType());
}

From source file:Main.java

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

    String inName = "abc.pack.gz";
    String outName = "abc";

    Pack200.Unpacker unpacker = Pack200.newUnpacker();
    JarOutputStream out = new JarOutputStream(new FileOutputStream(outName));
    InputStream in = new FileInputStream(inName);
    if (inName.endsWith(".gz")) {
        in = new GZIPInputStream(in);
    }/* w  w  w  .  j ava  2s.c  o m*/

    unpacker.unpack(in, out);
    out.close();
}

From source file:Main.java

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

    OutputStream os = new FileOutputStream("C://test.txt");
    FilterOutputStream fos = new FilterOutputStream(os);

    fos.write(65);/*  w  w w.j a  v  a  2  s.  c  o  m*/

    // forces byte contents to written out to the stream
    fos.flush();

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

    // read byte
    int i = fis.read();

    // convert integer to characters
    char c = (char) i;

    System.out.print("Character read: " + c);
    fos.close();
    fis.close();
}

From source file:ProgressInputSample.java

public static void main(String args[]) {
    int returnValue = NORMAL;
    try {//from   w ww. j a  va  2  s.  c om
        FileInputStream fis = new FileInputStream("person.xml");
        JLabel filenameLabel = new JLabel("persion.xml", JLabel.RIGHT);
        Object message[] = { "Reading:", filenameLabel };
        ProgressMonitorInputStream pmis = new ProgressMonitorInputStream(null, message, fis);
        InputStreamReader isr = new InputStreamReader(pmis);
        BufferedReader br = new BufferedReader(isr);
        String line;
        while ((line = br.readLine()) != null) {
            System.out.println(line);
        }
        br.close();
    } catch (Exception exception) {
        returnValue = PROBLEM;
    }
    System.exit(returnValue);
}

From source file:DataIODemo.java

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

    FileOutputStream fout = new FileOutputStream("Test.dat");
    DataOutputStream out = new DataOutputStream(fout);

    out.writeDouble(98.6);//from w ww. ja v a 2  s .c  om
    out.writeInt(1000);
    out.writeBoolean(true);

    out.close();

    FileInputStream fin = new FileInputStream("Test.dat");
    DataInputStream in = new DataInputStream(fin);

    double d = in.readDouble();
    int i = in.readInt();
    boolean b = in.readBoolean();

    System.out.println("Here are the values:  " + d + " " + i + " " + b);

    in.close();
}

From source file:ReadBinaryFile.java

public static void main(String[] args) throws Exception {
    NumberFormat cf = NumberFormat.getCurrencyInstance();

    File file = new File("product.dat");
    DataInputStream in = new DataInputStream(new BufferedInputStream(new FileInputStream(file)));

    boolean eof = false;
    while (!eof) {
        Product movie = readMovie(in);//  w ww. j  a  v a 2s  .c o  m
        if (movie == null)
            eof = true;
        else {
            String msg = Integer.toString(movie.year);
            msg += ": " + movie.title;
            msg += " (" + cf.format(movie.price) + ")";
            System.out.println(msg);
        }
    }
    in.close();
}

From source file:Main.java

public static void main(String[] args) throws Exception {
    XMLInputFactory xif = XMLInputFactory.newFactory();

    FileInputStream xml = new FileInputStream("input.xml");
    XMLStreamReader xsr = xif.createXMLStreamReader(xml);
    xsr.nextTag(); // Advance to "Persons" tag
    xsr.nextTag(); // Advance to "Person" tag

    JAXBContext jc = JAXBContext.newInstance(Person.class);
    Unmarshaller unmarshaller = jc.createUnmarshaller();
    List<Person> persons = new ArrayList<Person>();
    while (xsr.hasNext() && xsr.isStartElement()) {
        Person person = (Person) unmarshaller.unmarshal(xsr);
        persons.add(person);/*ww  w .  j  a v  a  2 s . co m*/
        xsr.nextTag();
    }

    for (Person person : persons) {
        System.out.println(person.getName());
    }
}

From source file:Main.java

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

    String s = "Hello from java2s.com!!";

    FileOutputStream fos = new FileOutputStream("c:\\test.txt");

    DataOutputStream dos = new DataOutputStream(fos);

    dos.writeChars(s);// www.j av a  2  s .  co m

    dos.flush();

    InputStream is = new FileInputStream("c:\\test.txt");

    DataInputStream dis = new DataInputStream(is);

    while (dis.available() > 0) {
        char c = dis.readChar();
        System.out.print(c);
    }

}

From source file:Main.java

public static void main(String[] args) throws IOException {
    String outputFile = "a.zip";
    int level = 9;
    FileOutputStream fout = new FileOutputStream(outputFile);
    ZipOutputStream zout = new ZipOutputStream(fout);
    zout.setLevel(level);//w w w . j a  v  a 2 s .  c  o m

    ZipEntry ze = new ZipEntry("a.zip");
    FileInputStream fin = new FileInputStream("b.dat");
    zout.putNextEntry(ze);
    for (int c = fin.read(); c != -1; c = fin.read()) {
        zout.write(c);
    }
    fin.close();
    zout.close();
}