Example usage for java.lang String String

Introduction

In this page you can find the example usage for java.lang String String.

Prototype

public String(StringBuilder builder)

Source Link

Document

Allocates a new string that contains the sequence of characters currently contained in the string builder argument.

Usage

From source file:MainClass.java

public static void main(String[] args) throws Exception {
    Security.addProvider(new BouncyCastleProvider());
    byte[] input = "www.java2s.com".getBytes();
    System.out.println("input     : " + new String(input));
    MessageDigest hash = MessageDigest.getInstance("SHA1");

    ByteArrayInputStream byteArrayInputStream = new ByteArrayInputStream(input);
    DigestInputStream digestInputStream = new DigestInputStream(byteArrayInputStream, hash);
    ByteArrayOutputStream byteArrayOutputStream = new ByteArrayOutputStream();

    int ch;//from   w  w w  .  ja  v a 2s . c  o  m
    while ((ch = digestInputStream.read()) >= 0) {
        byteArrayOutputStream.write(ch);
    }

    byte[] newInput = byteArrayOutputStream.toByteArray();
    System.out.println("in digest : " + new String(digestInputStream.getMessageDigest().digest()));

    byteArrayOutputStream = new ByteArrayOutputStream();
    DigestOutputStream digestOutputStream = new DigestOutputStream(byteArrayOutputStream, hash);
    digestOutputStream.write(newInput);
    digestOutputStream.close();

    System.out.println("out digest: " + new String(digestOutputStream.getMessageDigest().digest()));
}

From source file:Main.java

public static void main(String[] args) throws Exception {
    Connection conn = getOracleConnection();
    String[] columnNames = { "id", "name", "content", "date_created" };
    Object[] inputValues = new Object[columnNames.length];
    inputValues[0] = new java.math.BigDecimal(100);
    inputValues[1] = new String("String Value");
    inputValues[2] = new String("This is my resume.");
    inputValues[3] = new Timestamp((new java.util.Date()).getTime());

    String insert = "insert into resume (id, name, content, date_created ) values(?, ?, ?, ?)";
    PreparedStatement pstmt = conn.prepareStatement(insert);

    pstmt.setObject(1, inputValues[0]);//from w w  w. ja  va  2  s  .c  o m
    pstmt.setObject(2, inputValues[1]);
    pstmt.setObject(3, inputValues[2]);
    pstmt.setObject(4, inputValues[3]);

    pstmt.executeUpdate();
    String query = "select id, name, content, date_created from resume where id=?";

    PreparedStatement pstmt2 = conn.prepareStatement(query);
    pstmt2.setObject(1, inputValues[0]);
    ResultSet rs = pstmt2.executeQuery();
    Object[] outputValues = new Object[columnNames.length];
    if (rs.next()) {
        for (int i = 0; i < columnNames.length; i++) {
            outputValues[i] = rs.getObject(i + 1);
        }
    }
    System.out.println("id=" + ((java.math.BigDecimal) outputValues[0]).toString());
    System.out.println("name=" + ((String) outputValues[1]));
    System.out.println("content=" + ((Clob) outputValues[2]));
    System.out.println("date_created=" + ((java.sql.Date) outputValues[3]).toString());

    rs.close();
    pstmt.close();
    pstmt2.close();
    conn.close();

}

From source file:Main.java

public static void main(String args[]) {
    try {/*from   w  w w .ja va  2s.co  m*/

        int port = 80;

        DatagramSocket ds = new DatagramSocket(port);

        while (true) {
            byte buffer[] = new byte[BUFSIZE];

            DatagramPacket dp = new DatagramPacket(buffer, buffer.length, InetAddress.getByName("google.com"),
                    8080);

            ds.receive(dp);

            String str = new String(dp.getData());

            System.out.println(str);
        }
    } catch (Exception e) {
        e.printStackTrace();
    }
}

From source file:Main.java

public static void main(String args[]) {
    try {/*from   w w w.  j  a va  2s  . com*/

        int port = 80;

        DatagramSocket ds = new DatagramSocket(port);

        while (true) {
            byte buffer[] = new byte[BUFSIZE];

            DatagramPacket dp = new DatagramPacket(buffer, 0, buffer.length,
                    InetAddress.getByName("google.com"), 8080);

            ds.receive(dp);

            String str = new String(dp.getData());

            System.out.println(str);
        }
    } catch (Exception e) {
        e.printStackTrace();
    }
}

From source file:MainClass.java

public static void main(String[] args) {
    String phrase = new String("www.java2s.com\n");

    File aFile = new File("test.txt");
    FileOutputStream outputFile = null;
    try {/* www. ja va 2s  .  c  o  m*/
        outputFile = new FileOutputStream(aFile, true);
        System.out.println("File stream created successfully.");
    } catch (FileNotFoundException e) {
        e.printStackTrace(System.err);
    }

    FileChannel outChannel = outputFile.getChannel();

    ByteBuffer buf = ByteBuffer.allocate(1024);
    System.out.println("New buffer:           position = " + buf.position() + "\tLimit = " + buf.limit()
            + "\tcapacity = " + buf.capacity());

    // Load the data into the buffer
    for (char ch : phrase.toCharArray()) {
        buf.putChar(ch);
    }
    System.out.println("Buffer after loading: position = " + buf.position() + "\tLimit = " + buf.limit()
            + "\tcapacity = " + buf.capacity());
    buf.flip();
    System.out.println("Buffer after flip:    position = " + buf.position() + "\tLimit = " + buf.limit()
            + "\tcapacity = " + buf.capacity());

    try {
        outChannel.write(buf);
        outputFile.close();
        System.out.println("Buffer contents written to file.");
    } catch (IOException e) {
        e.printStackTrace(System.err);
    }
}

From source file:Main.java

public static void main(String[] args) {
    try {//from  w  w  w.j  a  va 2s.  c o m
        byte[] buffer = new byte[1024];
        DatagramPacket packet = new DatagramPacket(buffer, buffer.length);

        DatagramSocket socket = new DatagramSocket(5002);

        System.out.println("Waiting for a packet...");
        socket.receive(packet);

        System.out.println("Just received packet from " + packet.getSocketAddress());
        buffer = packet.getData();

        System.out.println(new String(buffer));

    } catch (IOException e) {
        e.printStackTrace();
    }
}

From source file:Main.java

public static void main(String args[]) {
    try {//from  w w w  . ja  v  a 2 s .c om

        int port = 80;

        DatagramSocket ds = new DatagramSocket(port);

        while (true) {
            byte buffer[] = new byte[BUFSIZE];

            DatagramPacket dp = new DatagramPacket(buffer, buffer.length,
                    InetSocketAddress.createUnresolved("google.com", 8080));

            ds.receive(dp);

            String str = new String(dp.getData());

            System.out.println(str);
        }
    } catch (Exception e) {
        e.printStackTrace();
    }
}

From source file:Main.java

public static void main(String[] args) {
    try {// www.  ja  va2 s.  c  o  m
        String s = "Hello world from java2s.com";

        RandomAccessFile raf = new RandomAccessFile("c:/test.txt", "rw");

        // write something in the file
        raf.writeUTF(s);

        // set the file pointer at 0 position
        raf.seek(0);

        // create an array equal to the length of raf
        byte[] arr = new byte[10];

        // read the file
        raf.readFully(arr, 3, 7);

        // create a new string based on arr
        String s2 = new String(arr);

        // print it
        System.out.println(s2);
        raf.close();
    } catch (IOException ex) {
        ex.printStackTrace();
    }

}

From source file:MainClass.java

public static void main(String[] args) throws Exception {
    PdfReader reader = new PdfReader("2.pdf");
    Map info = reader.getInfo();/*from  w ww .ja  v  a 2 s  . c om*/
    for (Iterator i = info.keySet().iterator(); i.hasNext();) {
        String key = (String) i.next();
        String value = (String) info.get(key);
        System.out.println(key + ": " + value);
    }
    if (reader.getMetadata() == null) {
        System.out.println("No XML Metadata.");
    } else {
        System.out.println("XML Metadata: " + new String(reader.getMetadata()));
    }
}

From source file:GetDate.java

public static void main(String args[]) throws Exception {
    byte msg[] = new byte[256];
    DatagramSocket dgSocket = new DatagramSocket();
    InetAddress destination = InetAddress.getByName("web.mit.edu");
    DatagramPacket datagram = new DatagramPacket(msg, msg.length, destination, PortDayTime);
    dgSocket.send(datagram);/*  w w  w. j  a  v a2 s .  c  o  m*/
    datagram = new DatagramPacket(msg, msg.length);
    dgSocket.receive(datagram);
    String received = new String(datagram.getData());
    System.out.println("The time in Cambridge is now: " + received);
    dgSocket.close();
}