Example usage for java.io BufferedReader BufferedReader

List of usage examples for java.io BufferedReader BufferedReader

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Introduction

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

Prototype

public BufferedReader(Reader in)

Source Link

Document

Creates a buffering character-input stream that uses a default-sized input buffer.

Usage

From source file:ResultSetMetaDataExample.java

public static void main(String args[]) throws Exception {
    Class.forName("sun.jdbc.odbc.JdbcOdbcDriver");
    Connection con = DriverManager.getConnection("jdbc:odbc:Inventory", "", "");
    Statement stmt = con.createStatement();

    boolean notDone = true;
    String sqlStr = null;//from   ww w.j a  va2  s.  co  m
    BufferedReader br = new BufferedReader(new InputStreamReader(System.in));

    while (notDone) {
        sqlStr = br.readLine();
        if (sqlStr.startsWith("SELECT") || sqlStr.startsWith("select")) {
            ResultSet rs = stmt.executeQuery(sqlStr);
            ResultSetMetaData rsmd = rs.getMetaData();
            int columnCount = rsmd.getColumnCount();
            for (int x = 1; x <= columnCount; x++) {
                String columnName = rsmd.getColumnName(x);
                System.out.print(columnName);
            }
            while (rs.next()) {
                for (int x = 1; x <= columnCount; x++) {
                    if (rsmd.getColumnTypeName(x).compareTo("CURRENCY") == 0)
                        System.out.print("$");
                    String resultStr = rs.getString(x);
                    System.out.print(resultStr + "\t");
                }
            }
        } else if (sqlStr.startsWith("exit"))
            notDone = false;
    }
    stmt.close();
    con.close();
}

From source file:HTTPServer.java

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

    ServerSocket sSocket = new ServerSocket(1777);
    while (true) {
        System.out.println("Waiting for a client...");
        Socket newSocket = sSocket.accept();
        System.out.println("accepted the socket");

        OutputStream os = newSocket.getOutputStream();
        BufferedReader br = new BufferedReader(new InputStreamReader(newSocket.getInputStream()));

        String inLine = null;/*w  w w .  ja  v  a2s  .c om*/
        while (((inLine = br.readLine()) != null) && (!(inLine.equals("")))) {
            System.out.println(inLine);
        }
        System.out.println("");

        StringBuffer sb = new StringBuffer();
        sb.append("<html>\n");
        sb.append("<head>\n");
        sb.append("<title>Java \n");
        sb.append("</title>\n");
        sb.append("</head>\n");
        sb.append("<body>\n");
        sb.append("<H1>HTTPServer Works!</H1>\n");
        sb.append("</body>\n");
        sb.append("</html>\n");

        String string = sb.toString();

        byte[] byteArray = string.getBytes();

        os.write("HTTP/1.0 200 OK\n".getBytes());
        os.write(new String("Content-Length: " + byteArray.length + "\n").getBytes());
        os.write("Content-Type: text/html\n\n".getBytes());

        os.write(byteArray);
        os.flush();

        os.close();
        br.close();
        newSocket.close();
    }

}

From source file:Print.java

public static void main(String[] args) throws Exception {
    Hashtable env = new Hashtable();
    env.put(Context.INITIAL_CONTEXT_FACTORY, "com.sun.jndi.fscontext.RefFSContextFactory");

    env.put(Context.PROVIDER_URL, "file:/tmp/marketing");

    Context initCtx = new InitialContext(env);
    File f = (File) initCtx.lookup("reports/report1.txt");
    if (f != null) {
        BufferedReader br = new BufferedReader(new FileReader(f));
        String l = null;//  w w  w.j  a  v a  2  s  .  co m
        while ((l = br.readLine()) != null)
            System.out.println(l);
    }

}

From source file:CollateApp.java

public static void main(String args[]) {
    if (args.length != 1) {
        System.out.println("Usage: java CollateApp file");
        System.exit(0);//ww  w .ja v  a  2  s .c  om
    }
    Locale defaultLocale = Locale.getDefault();
    RuleBasedCollator collator = (RuleBasedCollator) Collator.getInstance(defaultLocale);
    Vector keyVector = new Vector();
    try {
        BufferedReader in = new BufferedReader(new FileReader(args[0]));
        String line;
        while ((line = in.readLine()) != null)
            keyVector.addElement(collator.getCollationKey(line));
        in.close();
    } catch (Exception ex) {
        System.out.println(ex);
        System.exit(0);
    }
    CollationKey keys[] = new CollationKey[keyVector.size()];
    for (int i = 0; i < keys.length; ++i)
        keys[i] = (CollationKey) keyVector.elementAt(i);
}

From source file:Main.java

public static void main(String[] argv) throws Exception {
    URL url = new URL("http://www.java.com");
    URLConnection urlConnection = url.openConnection();
    HttpURLConnection connection = null;
    if (urlConnection instanceof HttpURLConnection) {
        connection = (HttpURLConnection) urlConnection;
    } else {/* w w  w  .j  a v  a  2 s. c o m*/
        System.out.println("Please enter an HTTP URL.");
        return;
    }
    BufferedReader in = new BufferedReader(new InputStreamReader(connection.getInputStream()));
    String urlString = "";
    String current;
    while ((current = in.readLine()) != null) {
        urlString += current;
    }
    System.out.println(urlString);
}

From source file:MainClass.java

public static void main(String args[]) throws Exception {
    Vector v = new Vector(3);
    v.add(new FileInputStream("/a/b"));
    v.add(new FileInputStream("yourfile.bar"));
    v.add(new FileInputStream("/yourfile.txt"));

    Enumeration e = v.elements();
    SequenceInputStream sis = new SequenceInputStream(e);
    InputStreamReader isr = new InputStreamReader(sis);
    BufferedReader br = new BufferedReader(isr);
    String line;//from   w ww  . j  a v  a2 s .  c  o  m
    while ((line = br.readLine()) != null) {
        System.out.println(line);
    }
    br.close();
}

From source file:CollateApp.java

public static void main(String args[]) {
    if (args.length != 1) {
        System.out.println("Usage: java CollateApp file");
        System.exit(0);// ww w  .j  a v a  2s  .com
    }
    Locale defaultLocale = Locale.getDefault();
    RuleBasedCollator collator = (RuleBasedCollator) Collator.getInstance(defaultLocale);
    Vector<Object> keyVector = new Vector<Object>();
    try {
        BufferedReader in = new BufferedReader(new FileReader(args[0]));
        String line;
        while ((line = in.readLine()) != null)
            keyVector.addElement(collator.getCollationKey(line));
        in.close();
    } catch (Exception ex) {
        System.out.println(ex);
        System.exit(0);
    }
    CollationKey keys[] = new CollationKey[keyVector.size()];
    for (int i = 0; i < keys.length; ++i)
        keys[i] = (CollationKey) keyVector.elementAt(i);
}

From source file:MainClass.java

public static void main(String[] a) throws Exception {
    String fileName = "BigFile.txt";
    FileInputStream fis = new FileInputStream(fileName);
    JLabel filenameLabel = new JLabel(fileName, JLabel.RIGHT);
    Object message[] = { "Reading:", filenameLabel };
    ProgressMonitorInputStream pmis = new ProgressMonitorInputStream(null, message, fis);
    InputStreamReader isr = new InputStreamReader(pmis);
    BufferedReader br = new BufferedReader(isr);
    String line;/*from w  w w  .  j  a  v  a 2s .  c  o m*/
    while ((line = br.readLine()) != null) {
        System.out.println(line);
    }
    br.close();
}

From source file:MainClass.java

public static void main(String[] args) throws Exception {
    Document document = new Document(PageSize.A4);
    PdfWriter writer = PdfWriter.getInstance(document, new FileOutputStream("2.pdf"));
    document.open();//w  w  w  .j av a 2s. c  om
    PdfContentByte cb = writer.getDirectContent();
    BufferedReader reader = new BufferedReader(new FileReader("a.txt"));
    String line;
    Paragraph p;
    float pos;
    while ((line = reader.readLine()) != null) {
        p = new Paragraph("    " + line);
        p.setAlignment(Element.ALIGN_JUSTIFIED);
        document.add(p);
        pos = writer.getVerticalPosition(false);
        cb.moveTo(0, pos);
        cb.lineTo(PageSize.A4.width(), pos);
        cb.stroke();
        if (pos < 90)
            document.newPage();
    }
    reader.close();
    document.close();
}

From source file:AuthDemo.java

public static void main(String args[]) throws MalformedURLException, IOException {
    String urlString = "";
    String username = "";
    String password = "";
    Authenticator.setDefault(new MyAuthenticator(username, password));
    URL url = new URL(urlString);
    InputStream content = (InputStream) url.getContent();
    BufferedReader in = new BufferedReader(new InputStreamReader(content));
    String line;/*w  w w.  ja  v a  2s  . c  om*/
    while ((line = in.readLine()) != null) {
        System.out.println(line);
    }
    System.out.println("Done.");
}