Example usage for java.io FileOutputStream FileOutputStream

Introduction

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

Prototype

public FileOutputStream(FileDescriptor fdObj)

Source Link

Document

Creates a file output stream to write to the specified file descriptor, 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) throws Exception {

    String s = "Hello World!";
    FileOutputStream out = new FileOutputStream("test.txt");
    ObjectOutputStream oout = new ObjectOutputStream(out);

    oout.writeUTF(s);/*from  ww  w  .j  a v a 2 s. c o m*/
    oout.writeUTF("This is an example from java2s.com");
    oout.flush();
    oout.close();

    ObjectInputStream ois = new ObjectInputStream(new FileInputStream("test.txt"));

    ois.skipBytes(4);
    for (int i = 0; i < ois.available() - 4; i++) {
        System.out.print((char) ois.readByte());
    }
    ois.close();
}

From source file:Main.java

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

    double b = 123.234d;

    FileOutputStream out = new FileOutputStream("test.txt");
    ObjectOutputStream oout = new ObjectOutputStream(out);

    // write something in the file
    oout.writeDouble(b);//  w  w w .  j  av a 2  s .  c o  m
    oout.writeDouble(456.789d);
    oout.flush();
    oout.close();
    // create an ObjectInputStream for the file we created before
    ObjectInputStream ois = new ObjectInputStream(new FileInputStream("test.txt"));

    // read and print a double
    System.out.println(ois.readDouble());

    // read and print a double
    System.out.println(ois.readDouble());
    ois.close();
}

From source file:Main.java

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

    byte[] cbuf = new byte[10];

    FileOutputStream out = new FileOutputStream("test.txt");
    ObjectOutputStream oout = new ObjectOutputStream(out);

    oout.writeUTF("Hello World from java2s.com");
    oout.flush();/*from w ww  . j av a 2 s.  c om*/
    oout.close();
    ObjectInputStream ois = new ObjectInputStream(new FileInputStream("test.txt"));

    ois.read(cbuf, 0, 7);

    for (int i = 0; i < 7; i++) {
        System.out.print((char) cbuf[i]);
    }
    ois.close();
}

From source file:Main.java

public static void main(String[] args) throws Exception {
    FileOutputStream fos = new FileOutputStream("books.dat");
    ObjectOutputStream oos = new ObjectOutputStream(fos);

    Book book = new Book("1", "Java", "A");

    oos.writeObject(book);/*from   ww  w . java 2 s . c  o  m*/
    oos.flush();
    oos.close();
    FileInputStream fis = new FileInputStream("books.dat");
    ObjectInputStream ois = new ObjectInputStream(fis);
    book = (Book) ois.readObject();
    System.out.println(book.toString());

    ois.close();
}

From source file:shutdown.java

License:asdf

public static void main(String[] args) throws ClassNotFoundException, IOException {
    FileOutputStream fos = new FileOutputStream("objects.tmp");

    ObjectOutputStream oos = new ObjectOutputStream(fos);
    oos.writeObject("asdf");
    oos.flush();//from   ww w  . j a v  a  2 s .com
    fos.close();

    FileInputStream fis = new FileInputStream("objects.tmp");
    ObjectInputStream ois = new ObjectInputStream(fis);
    String t = (String) ois.readObject();
    fis.close();

}

From source file:Main.java

public static void main(String[] args) throws Exception {
    FileChannel fc = new FileOutputStream("data.txt").getChannel();
    fc.write(ByteBuffer.wrap("Some text ".getBytes()));
    fc.close();//from  ww w. ja  v  a2 s  .  c o m
}

From source file:Main.java

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

    long l = 12345678909876L;

    FileOutputStream out = new FileOutputStream("test.txt");
    ObjectOutputStream oout = new ObjectOutputStream(out);

    // write something in the file
    oout.writeLong(l);/*from  w ww .j av a2s. c om*/
    oout.writeLong(987654321L);
    oout.flush();
    oout.close();
    // create an ObjectInputStream for the file we created before
    ObjectInputStream ois = new ObjectInputStream(new FileInputStream("test.txt"));

    // read and print a long
    System.out.println(ois.readLong());

    // read and print a long
    System.out.println(ois.readLong());
    ois.close();
}

From source file:Main.java

public static void main(String[] args) {

    String s = "from java2s.com!";

    try {/* w  w w.  j av  a 2s.c o m*/

        OutputStream os = new FileOutputStream("test.txt");
        OutputStreamWriter writer = new OutputStreamWriter(os);

        FileInputStream in = new FileInputStream("test.txt");

        writer.write(s, 0, 5);

        writer.flush();

        for (int i = 0; i < 5; i++) {
            System.out.print((char) in.read());
        }
        writer.close();
        in.close();
    } catch (Exception ex) {
        ex.printStackTrace();
    }
}

From source file:MainClass.java

public static void main(String[] args) throws Exception {
    Document document = new Document();
    PdfWriter.getInstance(document, new FileOutputStream("html1.pdf"));
    HtmlParser.parse(document, "example.html");
}

From source file:FileInputOutputExample.java

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

    InputStream is = new FileInputStream("in.txt");
    OutputStream os = new FileOutputStream("out.txt");
    int c;/* ww  w . j a  va2 s  .c  om*/
    while ((c = is.read()) != -1) {
        System.out.print((char) c);
        os.write(c);
    }
    is.close();
    os.close();

}