Example usage for java.io InputStream read

Introduction

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

Prototype

public abstract int read() throws IOException;

Source Link

Document

Reads the next byte of data from the input stream.

Usage

From source file:Main.java

public static void main(String[] args) throws Exception {
    InputStream in = System.in;
    BufferedWriter bw = new BufferedWriter(new FileWriter("output.txt"));

    int letter;/*from   ww  w .j a  v  a  2 s .  c om*/

    while ((letter = in.read()) != -1) {
        bw.write((char) letter);
        bw.flush();
    }
}

From source file:MainClass.java

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

    String hostname = "time.nist.gov";
    int port = 37;

    InputStream raw = null;
    Socket theSocket = new Socket(hostname, port);
    raw = theSocket.getInputStream();//www.j  av  a 2  s.  co  m

    System.out.println(raw.read());

    raw.close();
}

From source file:MainClass.java

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

    InputStream in = null;
    try {/*from  www.  j a  v a2 s  . c  o m*/
        URL u = new URL("http://www.java2s.com");
        in = u.openStream();
        for (int c = in.read(); c != -1; c = in.read()) {
            System.out.write(c);
        }
        in.close();
    } catch (MalformedURLException ex) {
        System.err.println("not a URL Java understands.");
    } finally {
        if (in != null)
            in.close();
    }
}

From source file:Main.java

public static void main(String args[]) throws Exception {
    int c;//from  w  w w .j  av  a 2s  . c  o m
    URL hp = new URL("http://www.internic.net");
    URLConnection hpCon = hp.openConnection();

    long d = hpCon.getDate();
    if (d == 0)
        System.out.println("No date information.");
    else
        System.out.println("Date: " + new Date(d));

    System.out.println("Content-Type: " + hpCon.getContentType());

    d = hpCon.getExpiration();
    if (d == 0)
        System.out.println("No expiration information.");
    else
        System.out.println("Expires: " + new Date(d));

    d = hpCon.getLastModified();
    if (d == 0)
        System.out.println("No last-modified information.");
    else
        System.out.println("Last-Modified: " + new Date(d));

    int len = hpCon.getContentLength();
    if (len == -1)
        System.out.println("Content length unavailable.");
    else
        System.out.println("Content-Length: " + len);

    if (len != 0) {
        InputStream input = hpCon.getInputStream();
        int i = len;
        while (((c = input.read()) != -1)) { // && (--i > 0)) {
            System.out.print((char) c);
        }
        input.close();

    } else {
        System.out.println("No content available.");
    }

}

From source file:Main.java

public static void main(String[] args) throws Exception {
    InputStream is = new FileInputStream("C://test.txt");

    // read and print characters one by one
    System.out.println("Char : " + (char) is.read());
    System.out.println("Char : " + (char) is.read());
    System.out.println("Char : " + (char) is.read());

    // mark is set on the input stream
    is.mark(0);//from  ww w  .  j a v a2s  . c  o  m

    System.out.println("Char : " + (char) is.read());
    System.out.println("Char : " + (char) is.read());

    if (is.markSupported()) {
        // reset invoked if mark() is supported
        is.reset();
        System.out.println("Char : " + (char) is.read());
        System.out.println("Char : " + (char) is.read());
    }
    is.close();
}

From source file:MainClass.java

public static void main(String[] args) {

    String hostname = "time.nist.gov";

    try {/*  www  . j a  v  a2 s  . co m*/
        Socket theSocket = new Socket(hostname, 13);
        InputStream timeStream = theSocket.getInputStream();
        StringBuffer time = new StringBuffer();
        int c;
        while ((c = timeStream.read()) != -1)
            time.append((char) c);
        String timeString = time.toString().trim();
        System.out.println("It is " + timeString + " at " + hostname);
    } // end try
    catch (UnknownHostException ex) {
        System.err.println(ex);
    } catch (IOException ex) {
        System.err.println(ex);
    }

}

From source file:Main.java

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

    int i;/*from  w  w w . j ava2s.c o m*/

    // new input stream created
    InputStream is = new FileInputStream("C://test.txt");

    System.out.println("Characters printed:");

    // reads till the end of the stream
    while ((i = is.read()) != -1) {
        // converts integer to character
        char c = (char) i;

        System.out.print(c);
    }
    is.close();
}

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. j a v a 2 s  .c  o m
    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:com.mtea.macrotea_httpclient_study.ClientConnectionRelease.java

public final static void main(String[] args) throws Exception {
    HttpClient httpclient = new DefaultHttpClient();
    try {/*from  w  ww. j av a  2s. co m*/
        HttpGet httpget = new HttpGet("http://www.apache.org/");

        // Execute HTTP request
        System.out.println("executing request " + httpget.getURI());
        HttpResponse response = httpclient.execute(httpget);

        System.out.println("----------------------------------------");
        System.out.println(response.getStatusLine());
        System.out.println("----------------------------------------");

        HttpEntity entity = response.getEntity();

        //?????
        if (entity != null) {
            InputStream instream = entity.getContent();
            try {
                instream.read();
            } catch (IOException ex) {
                //IOExceptionConnectionManager
                throw ex;
            } catch (RuntimeException ex) {
                //RuntimeExceptionhttpget.abort();
                httpget.abort();
                throw ex;
            } finally {
                // instream.close() ?ConnectionManager
                try {
                    instream.close();
                } catch (Exception ignore) {
                }
            }
        }

    } finally {
        //??httpclient???
        httpclient.getConnectionManager().shutdown();
    }
}

From source file:Main.java

public static void main(String[] args) {
    byte[] b = { 'h', 'e', 'l', 'l', 'o' };
    try {/*from w  w w .j  a  v a 2 s  . co  m*/

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

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

        os.write(b, 0, 3);

        for (int i = 0; i < 3; i++) {
            System.out.print((char) is.read());
        }
        os.close();
        is.close();
    } catch (Exception ex) {
        ex.printStackTrace();
    }

}