Example usage for java.io FileInputStream FileInputStream

List of usage examples for java.io FileInputStream FileInputStream

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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) {
    try {//from w w w  .j  a v a 2 s . c  om
        char[] chars = new char[2];
        chars[0] = '\u4F60';
        chars[1] = '\u597D';
        String encoding = "GB18030";
        File textFile = new File("C:\\temp\\myFile.txt");
        PrintWriter writer = new PrintWriter(textFile, encoding);
        writer.write(chars);
        writer.close();

        // read back
        InputStreamReader reader = new InputStreamReader(new FileInputStream(textFile), encoding);
        char[] chars2 = new char[2];
        reader.read(chars2);
        System.out.print(chars2[0]);
        System.out.print(chars2[1]);
        reader.close();
    } catch (IOException e) {
        System.out.println(e.toString());
    }
}

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);/*from   w  w  w . j a v a 2 s. c  om*/
    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:MainClass.java

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

    CertificateFactory cf = CertificateFactory.getInstance("X.509");
    List mylist = new ArrayList();
    FileInputStream in = new FileInputStream(args[0]);
    Certificate c = cf.generateCertificate(in);
    mylist.add(c);// w  ww  .  j  a v  a 2  s.c  o m

    CertStoreParameters cparam = new CollectionCertStoreParameters(mylist);
    CertStore cs = CertStore.getInstance("Collection", cparam);
    X509CertSelector selec = new X509CertSelector();
    selec.setIssuer("CN=YourName,OU=Network Center," + "O=University,L=ZB,ST=Toronto,C=CN");
    Set clct = (Set) cs.getCertificates(selec);
    Object o[] = clct.toArray();
    for (int i = 0; i < o.length; i++) {
        X509Certificate ct = (X509Certificate) o[i];
        System.out.println("Certificate " + i + " ");
        System.out.println(ct.getSubjectDN());

    }
}

From source file:Main.java

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

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

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

    oout.writeObject(s);/*from ww  w. j  a v a  2  s  . com*/
    oout.flush();
    oout.close();
    Main ois = new Main(new FileInputStream("test.txt"));

    System.out.println((String) ois.readObjectOverride());
    ois.close();
}

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  a 2 s  .co m*/
    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:XMLDBDOM.java

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

    Class.forName("COM.cloudscape.core.JDBCDriver").newInstance();

    Connection conn = DriverManager.getConnection("jdbc:cloudscape:GAMETRADER");

    conn.setAutoCommit(false);//w w w . j  av  a2  s .  c  o  m

    Statement s = conn.createStatement();
    s.executeUpdate("CREATE TABLE XMLData(GAMEID INT, MANUAL SERIALIZE(org.w3c.dom.Document))");
    conn.commit();

    File file = new File("XMLData.xml");
    InputStream is = new FileInputStream(file);

    PreparedStatement ps = conn.prepareStatement("INSERT INTO XMLData VALUES(?,?)");

    ps.setInt(1, 1285757);

    DOMParser parser = new DOMParser();
    parser.parse("XMLData.xml");
    Document manual = parser.getDocument();
    ps.setObject(2, manual);

    ps.execute();

    conn.commit();
}

From source file:Main.java

public static void main(String[] args) throws Exception {
    Connection conn = getConnection();
    Statement st = conn.createStatement();

    st.executeUpdate("create table images (Id int, b BLOB);");

    File file = new File("myimage.gif");
    FileInputStream fis = new FileInputStream(file);
    PreparedStatement ps = conn.prepareStatement("insert into images values (?,?)");
    ps.setString(1, "10");
    ps.setBinaryStream(2, fis);/*from w  w w  .java  2s. c om*/
    ps.executeUpdate();

    ResultSet rset = st.executeQuery("select b from images");
    InputStream stream = rset.getBinaryStream(1);
    ByteArrayOutputStream output = new ByteArrayOutputStream();
    int a1 = stream.read();
    while (a1 >= 0) {
        output.write((char) a1);
        a1 = stream.read();
    }
    Image myImage = Toolkit.getDefaultToolkit().createImage(output.toByteArray());
    output.close();

    ps.close();

    fis.close();
    st.close();
    conn.close();
}

From source file:ChannelCopy.java

public static void main(String[] args) throws Exception {
    if (args.length != 2) {
        System.out.println("arguments: sourcefile destfile");
        System.exit(1);//from   w ww. j  av a2  s.c  o m
    }
    FileChannel in = new FileInputStream(args[0]).getChannel(),
            out = new FileOutputStream(args[1]).getChannel();
    ByteBuffer buffer = ByteBuffer.allocate(BSIZE);
    while (in.read(buffer) != -1) {
        buffer.flip(); // Prepare for writing
        out.write(buffer);
        buffer.clear(); // Prepare for reading
    }
}

From source file:Main.java

public static void main(String[] args) throws Exception {
    InputStream is = new FileInputStream("test.xml");
    DocumentBuilderFactory factory = DocumentBuilderFactory.newInstance();
    DocumentBuilder builder = factory.newDocumentBuilder();

    Document oldDoc = builder.parse(is);
    Node oldRoot = oldDoc.getDocumentElement();
    Document newDoc = builder.newDocument();
    Element newRoot = newDoc.createElement("newroot");
    newDoc.appendChild(newRoot);/*w w  w.  ja  v  a  2  s .  c  om*/
    newRoot.appendChild(newDoc.importNode(oldRoot, true));

    ByteArrayOutputStream out = new ByteArrayOutputStream();
    DOMSource domSource = new DOMSource(newDoc);
    Writer writer = new OutputStreamWriter(out);
    StreamResult result = new StreamResult(writer);
    TransformerFactory tf = TransformerFactory.newInstance();
    Transformer transformer = tf.newTransformer();
    transformer.transform(domSource, result);
    writer.flush();

    InputStream isNewXML = new ByteArrayInputStream(out.toByteArray());
}

From source file:Main.java

public static void main(String[] args) throws Exception {
    InputStream is = new BufferedInputStream(new FileInputStream("filename.gif"));

    OutputStream fos = new BufferedOutputStream(new FileOutputStream("filename.ps"));

    DocFlavor flavor = DocFlavor.INPUT_STREAM.GIF;
    StreamPrintServiceFactory[] factories = StreamPrintServiceFactory.lookupStreamPrintServiceFactories(flavor,
            DocFlavor.BYTE_ARRAY.POSTSCRIPT.getMimeType());

    if (factories.length > 0) {
        StreamPrintService service = factories[0].getPrintService(fos);
        DocPrintJob job = service.createPrintJob();
        Doc doc = new SimpleDoc(is, flavor, null);

        PrintJobWatcher pjDone = new PrintJobWatcher(job);

        job.print(doc, null);//from   ww w  . jav a2 s  .c o  m

        pjDone.waitForDone();
    }

    is.close();
    fos.close();
}