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: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();// ww  w  .  j  ava2 s  .  c  o m
    fos.close();

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

}

From source file:MainClass.java

public static void main(String args[]) throws Exception {
    X509CertSelector selec = new X509CertSelector();
    CertificateFactory cf = CertificateFactory.getInstance("X.509");
    FileInputStream in = new FileInputStream(args[0]);
    Certificate c = cf.generateCertificate(in);
    System.out.println(selec.match(c));
    selec.setIssuer("CN=Peter,OU=Network Center," + "O=University,L=ZB,ST=Vancouver,C=CN");

    System.out.println(selec.match(c));

    Calendar cld = Calendar.getInstance();
    int year = Integer.parseInt(args[1]);
    int month = Integer.parseInt(args[2]) - 1;
    int day = Integer.parseInt(args[3]);
    cld.set(year, month, day);/* w  ww .jav  a2s.  com*/
    Date d = cld.getTime();
    selec.setCertificateValid(d);

    System.out.println(selec.match(c));
    BigInteger sn = new BigInteger("1039056963");
    selec.setSerialNumber(sn);

    System.out.println(selec.match(c));
}

From source file:MainClass.java

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

    Certificate[] certpath = new Certificate[args.length - 1];
    CertificateFactory cf = CertificateFactory.getInstance("X.509");
    int i;//from   ww w  .java2 s  .  c  o  m
    for (i = 0; i < args.length - 1; i++) {
        FileInputStream in = new FileInputStream(args[i]);
        certpath[i] = cf.generateCertificate(in);
    }
    FileInputStream in = new FileInputStream(args[i]);
    Certificate trust = cf.generateCertificate(in);

    boolean pass = false;
    String reason = "";
    for (i = 0; i < certpath.length; i++) {
        try {
            PublicKey pbk;
            if (i == certpath.length - 1) {
                pbk = trust.getPublicKey();
            } else {
                pbk = certpath[i + 1].getPublicKey();
            }
            certpath[i].verify(pbk);
            pass = true;
        } catch (Exception e) {
            pass = false;
            reason += i + "  " + e.toString();
            break;
        }
    }
    System.out.println(pass);
}

From source file:MainClass.java

public static void main(String[] args) throws Exception {
    PdfReader reader;/*from w  w w .j a v a 2s.co m*/
    KeyStore ks = KeyStore.getInstance(KeyStore.getDefaultType());
    ks.load(new FileInputStream(".keystore"), "string".toCharArray());
    PrivateKey key = (PrivateKey) ks.getKey("key", "value".toCharArray());
    Certificate[] chain = ks.getCertificateChain("foobar");
    reader = new PdfReader("2.pdf");
    FileOutputStream os = new FileOutputStream("1.pdf");
    PdfStamper stamper = PdfStamper.createSignature(reader, os, '\0');
    PdfSignatureAppearance appearance = stamper.getSignatureAppearance();
    appearance.setCrypto(key, chain, null, PdfSignatureAppearance.SELF_SIGNED);
    appearance.setReason("personal");
    appearance.setLocation("Foobar");
    appearance.setVisibleSignature("yoursig");
    stamper.close();
}

From source file:Main.java

public static void main(String[] args) throws Exception {
    Properties prop = new Properties();

    prop.put("Chapter Count", "200");
    prop.put("Tutorial Count", "15");
    prop.put("tutorial", "java2s.com");

    // create a output and input as a xml file
    FileOutputStream fos = new FileOutputStream("properties.xml");
    FileInputStream fis = new FileInputStream("properties.xml");

    prop.storeToXML(fos, "Properties Example", "ISO 8859");

    while (fis.available() > 0) {
        System.out.print((char) fis.read());
    }/*w  w w.  j a va2 s  .c o  m*/

}

From source file:Main.java

public static void main(String[] args) {

    String s = "from java2s.com!";

    try {//from   w w  w .j  av  a  2 s.com

        OutputStream os = new FileOutputStream("test.txt");
        OutputStreamWriter writer = new OutputStreamWriter(os, Charset.defaultCharset().newEncoder());

        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:TestEOF.java

public static void main(String[] args) throws IOException {
    DataInputStream in = new DataInputStream(new BufferedInputStream(new FileInputStream("TestEOF.java")));
    while (in.available() != 0)
        System.out.print((char) in.readByte());
}

From source file:Main.java

public static void main(String[] args) throws Exception {
    Properties prop = new Properties();

    prop.put("Chapter Count", "200");
    prop.put("Tutorial Count", "15");
    prop.put("tutorial", "java2s.com");

    // create a output and input as a xml file
    FileOutputStream fos = new FileOutputStream("properties.xml");
    FileInputStream fis = new FileInputStream("properties.xml");

    // store the properties in the specific xml
    prop.storeToXML(fos, "Properties Example");

    // print the xml
    while (fis.available() > 0) {
        System.out.print((char) fis.read());
    }//from  w  w w  .j  a v a 2 s .c om

}

From source file:Main.java

public static void main(String[] args) throws Exception {
    String inName = "a.pack.gz";
    String outName = "a.unpacked";
    Pack200.Unpacker unpacker = Pack200.newUnpacker();
    JarOutputStream out = new JarOutputStream(new FileOutputStream(outName));
    InputStream in = new FileInputStream(inName);
    in = new GZIPInputStream(in);
    unpacker.unpack(in, out);//from w  w w . j  a  v a 2 s .c om
    out.close();
}

From source file:MainClass.java

public static void main(String[] args) {
    File aFile = new File("data.dat");
    FileInputStream inFile = null;

    try {/*from w  ww.  j  av  a 2s .co m*/
        inFile = new FileInputStream(aFile);
    } catch (FileNotFoundException e) {
        e.printStackTrace(System.err);
        System.exit(1);
    }

    FileChannel inChannel = inFile.getChannel();
    final int COUNT = 6;
    ByteBuffer buf = ByteBuffer.allocate(8 * COUNT);
    long[] data = new long[COUNT];
    try {
        int pos = 0;
        while (inChannel.read(buf) != -1) {
            try {
                ((ByteBuffer) (buf.flip())).asLongBuffer().get(data);
                pos = data.length;
            } catch (BufferUnderflowException e) {
                LongBuffer longBuf = buf.asLongBuffer();
                pos = longBuf.remaining();
                longBuf.get(data, 0, pos);
            }
            System.out.println();
            for (int i = 0; i < pos; i++) {
                System.out.printf("%10d", data[i]);
            }
            buf.clear();
        }
        System.out.println("\nEOF reached.");
        inFile.close();
    } catch (IOException e) {
        e.printStackTrace(System.err);
        System.exit(1);
    }
}