Example usage for java.io BufferedReader BufferedReader

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:Main.java

public static void main(String args[]) throws Exception {
    File file = new File(".");

    if (file.isDirectory()) {
        String[] files = file.list();
        for (int i = 0; i < files.length; i++)
            System.out.println(files[i]);
    } else {/*w ww .  jav a2  s  .  c  om*/
        FileReader fr = new FileReader(file);
        BufferedReader in = new BufferedReader(fr);
        String line;
        while ((line = in.readLine()) != null)
            System.out.println(line);
    }
}

From source file:MainClass.java

public static void main(String args[]) throws IOException {
    Hashtable map = new Hashtable();
    FileReader fr = new FileReader(args[0]);
    BufferedReader br = new BufferedReader(fr);
    String line;/* w ww  .  j a v a2s.c om*/
    while ((line = br.readLine()) != null) {
        processLine(line, map);
    }
    Enumeration e = map.keys();
    while (e.hasMoreElements()) {
        String key = (String) e.nextElement();
        System.out.println(key + " : " + map.get(key));
    }
}

From source file:WordCount.java

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

    Hashtable map = new Hashtable();
    FileReader fr = new FileReader(args[0]);
    BufferedReader br = new BufferedReader(fr);
    String line;//from   w  ww  . j  a v a  2s.c o m
    while ((line = br.readLine()) != null) {
        processLine(line, map);
    }
    Enumeration e = map.keys();
    while (e.hasMoreElements()) {
        String key = (String) e.nextElement();
        System.out.println(key + " : " + map.get(key));
    }
}

From source file:InputOutputDemoStandardInputOutput.java

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

    //Write characters to standard output and standard error:
    System.out.println("std output");
    System.err.println("std error");
    //Read characters from standard input (the keyboard):
    System.out.print("Type some characters and press Enter: ");
    BufferedReader bisr = new BufferedReader(new InputStreamReader(System.in));
    String response = bisr.readLine();
    System.out.println("You typed: '" + response + "'");
    //Read a byte from standard input (the keyboard):
    System.out.print("Type one character and press Enter: ");
    byte b = (byte) System.in.read();
    System.out.println("First byte of your input is: " + b);
}

From source file:Main.java

public static void main(String args[]) throws Exception {
    ServerSocket ssock = new ServerSocket(1234);
    Socket sock = ssock.accept();
    ssock.close();/*  w  w  w .  j a  v a2s . c  o m*/

    PrintStream pstream = new PrintStream(sock.getOutputStream());
    pstream.print("count? ");
    BufferedReader input = new BufferedReader(new InputStreamReader(sock.getInputStream()));
    String line = input.readLine();
    pstream.println("");
    int count = Integer.parseInt(line);
    for (int i = count; i >= 0; i--) {
        pstream.println(i);
    }
    pstream.close();
    sock.close();
}

From source file:POP3Demo.java

public static void main(String[] args) throws Exception {
    int POP3Port = 110;
    Socket client = new Socket("127.0.0.1", POP3Port);
    InputStream is = client.getInputStream();
    BufferedReader sockin = new BufferedReader(new InputStreamReader(is));
    OutputStream os = client.getOutputStream();
    PrintWriter sockout = new PrintWriter(os, true);
    String cmd = "user Smith";
    sockout.println(cmd);/*  w w w  .  ja v a 2s  . c  o m*/
    String reply = sockin.readLine();
    cmd = "pass ";
    sockout.println(cmd + "popPassword");
    reply = sockin.readLine();
    cmd = "stat";
    sockout.println(cmd);
    reply = sockin.readLine();
    if (reply == null)
        return;
    cmd = "retr 1";
    sockout.println(cmd);
    if (cmd.toLowerCase().startsWith("retr") && reply.charAt(0) == '+')
        do {
            reply = sockin.readLine();
            System.out.println("S:" + reply);
            if (reply != null && reply.length() > 0)
                if (reply.charAt(0) == '.')
                    break;
        } while (true);
    cmd = "quit";
    sockout.println(cmd);
    client.close();
}

From source file:AllCapsDemo.java

License:asdf

public static void main(String[] arguments) {
    String sourceName = "asdf";
    try {//from  www.  j a  v  a  2 s . c om
        File source = new File(sourceName);
        File temp = new File("cap" + sourceName + ".tmp");

        FileReader fr = new FileReader(source);
        BufferedReader in = new BufferedReader(fr);

        FileWriter fw = new FileWriter(temp);
        BufferedWriter out = new BufferedWriter(fw);

        boolean eof = false;
        int inChar = 0;
        do {
            inChar = in.read();
            if (inChar != -1) {
                char outChar = Character.toUpperCase((char) inChar);
                out.write(outChar);
            } else
                eof = true;
        } while (!eof);
        in.close();
        out.close();

        boolean deleted = source.delete();
        if (deleted)
            temp.renameTo(source);
    } catch (Exception se) {
        System.out.println("Error - " + se.toString());
    }
}

From source file:BufferedSocketClient.java

  public static void main(String args[]) throws Exception {
  Socket socket1;/*  w w  w .  j av  a  2  s.  co  m*/
  int portNumber = 1777;
  String str = "initialize";

  socket1 = new Socket(InetAddress.getLocalHost(), portNumber);

  BufferedReader br = new BufferedReader(new InputStreamReader(socket1.getInputStream()));

  PrintWriter pw = new PrintWriter(socket1.getOutputStream(), true);

  pw.println(str);

  while ((str = br.readLine()) != null) {
    System.out.println(str);
    pw.println("bye");

    if (str.equals("bye"))
      break;
  }

  br.close();
  pw.close();
  socket1.close();
}

From source file:MainClass.java

public static void main(String[] args) throws IOException {
    SSLServerSocketFactory ssf = (SSLServerSocketFactory) SSLServerSocketFactory.getDefault();
    ServerSocket ss = ssf.createServerSocket(8080);

    while (true) {
        try {// ww w  .jav  a 2  s  .co  m
            Socket s = ss.accept();
            OutputStream out = s.getOutputStream();
            BufferedReader in = new BufferedReader(new InputStreamReader(s.getInputStream()));

            String line = null;
            while (((line = in.readLine()) != null) && (!("".equals(line)))) {
                System.out.println(line);
            }
            StringBuffer buffer = new StringBuffer();
            buffer.append("<HTML><HEAD><TITLE>HTTPS Server</TITLE></HEAD>\n");
            buffer.append("<BODY>\n<H1>Success!</H1></BODY></HTML>\n");

            String string = buffer.toString();
            byte[] data = string.getBytes();
            out.write("HTTP/1.0 200 OK\n".getBytes());
            out.write(new String("Content-Length: " + data.length + "\n").getBytes());
            out.write("Content-Type: text/html\n\n".getBytes());
            out.write(data);
            out.flush();

            out.close();
            in.close();
            s.close();
        } catch (Exception e) {
            e.printStackTrace();
        }
    }
}

From source file:SecureClient.java

public static void main(String[] args) throws Exception {
    String host = "127.0.0.1";

    SocketFactory sf = SSLSocketFactory.getDefault();
    SSLSocket sock = (SSLSocket) sf.createSocket(host, PORT);
    System.out.println("Server connected");

    InputStream rawIn = sock.getInputStream();
    BufferedReader in = new BufferedReader(new InputStreamReader(rawIn));
    System.out.println(in.readLine());
    sock.close();/*from  w  w w  .  j av  a 2  s. c o m*/
}