Example usage for java.io PrintWriter PrintWriter

Introduction

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

Prototype

public PrintWriter(File file) throws FileNotFoundException

Source Link

Document

Creates a new PrintWriter, without automatic line flushing, with the specified file.

Usage

From source file:Random4.java

public static void main(String[] argv) throws IOException {
    // java.util.Random methods are non-static, do need to construct Math
    Random r = new Random();
    PrintWriter file1 = new PrintWriter(new FileWriter("file1"));
    PrintWriter file2 = new PrintWriter(new FileWriter("file2"));
    for (int i = 0; i < 10000; i++) {
        file1.println(r.nextDouble());//from ww  w . j a  v a  2 s .  c  o m
        file2.println(r.nextGaussian());
    }
    file1.close();
    file2.close();
}

From source file:MainClass.java

License:asdf

public static void main(String[] args) throws IOException {
    try {/*from   w  w  w . j  ava2  s .c o m*/
        BufferedReader in4 = new BufferedReader(new StringReader("asdf"));
        PrintWriter out1 = new PrintWriter(new BufferedWriter(new FileWriter("IODemo.out")));
        int lineCount = 1;
        String s = null;
        while ((s = in4.readLine()) != null)
            out1.println(lineCount++ + ": " + s);
        out1.close();
    } catch (EOFException e) {
        System.err.println("End of stream");
    }

}

From source file:Main.java

public static void main(String args[]) throws Exception {
    Class.forName("sun.jdbc.odbc.JdbcOdbcDriver");
    String URL = "jdbc:odbc:dbName";
    Connection dbConn = DriverManager.getConnection(URL, "user", "pass");
    PrintWriter w = new PrintWriter(new OutputStreamWriter(System.out));
    DriverManager.setLogWriter(w);
    dbConn.close();//from w  ww  .j  a va 2 s  . c o  m

    PreparedStatement prepstmt;
    prepstmt = dbConn.prepareStatement("SELECT id FROM employee");
    prepstmt.execute();
    prepstmt.close();
    dbConn.close();
}

From source file:Main.java

public static void main(String[] args) throws Exception {
    String dbURL = "jdbc:odbc:Companies";
    try {/*from   w  w w .j  a  v a  2 s.c  o  m*/
        // Load the jdbc-odbc bridge driver
        Class.forName("sun.jdbc.odbc.JdbcOdbcDriver");
        // Enable logging
        DriverManager.setLogWriter(new PrintWriter((System.err)));

        System.out.println("Getting Connection");
        Connection conn = DriverManager.getConnection(dbURL, "user", "password");

        SQLWarning warn = conn.getWarnings();
        while (warn != null) {
            System.out.println("SQLState: " + warn.getSQLState());
            System.out.println("Message:  " + warn.getMessage());
            System.out.println("Vendor:   " + warn.getErrorCode());
            System.out.println("");
            warn = warn.getNextWarning();
        }

        conn.close();
    } catch (ClassNotFoundException e) {
        System.out.println("Can't load driver " + e);
    } catch (SQLException e) {
        System.out.println("Database access failed " + e);
    }
}

From source file:SecureServer.java

public static void main(String[] args) throws Exception {
    ServerSocketFactory ssf = SSLServerSocketFactory.getDefault();
    SSLServerSocket ss = (SSLServerSocket) ssf.createServerSocket(98999);
    Socket sock = ss.accept();/*from  w ww.j a  v  a 2s.co  m*/
    ss.close();
    OutputStream rawOut = sock.getOutputStream();
    PrintWriter out = new PrintWriter(new OutputStreamWriter(rawOut));
    out.println(new java.util.Date().toString());
    out.flush();
    sock.close();

}

From source file:MainClass.java

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

    Socket theSocket = new Socket(hostname, 7);
    BufferedReader networkIn = new BufferedReader(new InputStreamReader(theSocket.getInputStream()));
    BufferedReader userIn = new BufferedReader(new InputStreamReader(System.in));
    PrintWriter out = new PrintWriter(theSocket.getOutputStream());
    System.out.println("Connected to echo server");

    while (true) {
        String theLine = userIn.readLine();
        if (theLine.equals("."))
            break;
        out.println(theLine);/*w  ww . j av  a  2 s . co  m*/
        out.flush();
        System.out.println(networkIn.readLine());
    }
    networkIn.close();
    out.close();
}

From source file:SSLSimpleClient.java

public static void main(String[] args) throws Exception {
    SocketFactory sf = SSLSocketFactory.getDefault();
    Socket s = sf.createSocket(args[0], Integer.parseInt(args[1]));

    BufferedReader br = new BufferedReader(new InputStreamReader(s.getInputStream()));
    PrintWriter pw = new PrintWriter(s.getOutputStream());
    pw.println("from java2s.");
    pw.flush();/*from www  . j  a v  a2s .  com*/
    System.out.println(br.readLine());
    s.close();
}

From source file:Main.java

public static void main(String args[]) throws Exception {
    SocketFactory factory = SSLSocketFactory.getDefault();
    Socket socket = factory.createSocket("127.0.0.1", 8080);

    OutputStream outputStream = socket.getOutputStream();
    PrintWriter out = new PrintWriter(outputStream);
    out.print("GET / HTTP/1.0\r\n\r\n");
    out.flush();//w w w .ja v a 2s  .c om
    InputStream inputStream = socket.getInputStream();
    InputStreamReader inputStreamReader = new InputStreamReader(inputStream);
    BufferedReader in = new BufferedReader(inputStreamReader);

    String line;
    while ((line = in.readLine()) != null) {
        System.out.println(line);
    }
    out.close();
    in.close();
    socket.close();

}

From source file:Main.java

public static void main(String[] args) {
    try {//from   www  .  j  a  v  a 2s  . c o m
        BufferedReader input = new BufferedReader(new FileReader(args[0]));
        ArrayList list = new ArrayList();
        String line;
        while ((line = input.readLine()) != null) {
            list.add(line);
        }
        input.close();

        Collections.reverse(list);

        PrintWriter output = new PrintWriter(new BufferedWriter(new FileWriter(args[1])));
        for (Iterator i = list.iterator(); i.hasNext();) {
            output.println((String) i.next());
        }
        output.close();
    } catch (IOException e) {
        System.err.println(e);
    }
}

From source file:DataFileTest.java

public static void main(String[] args) {
    Employee staff = new Employee("Java Source", 35500);

    staff.raiseSalary(5.25);//from  w ww. j  a  va 2  s.c o  m

    try {
        PrintWriter out = new PrintWriter(new FileWriter("employee.dat"));
        writeData(staff, out);
        out.close();
    } catch (IOException e) {
        System.out.print("Error: " + e);
        System.exit(1);
    }

    try {
        BufferedReader in = new BufferedReader(new FileReader("employee.dat"));
        Employee e = readData(in);
        e.print();
        in.close();
    } catch (IOException e) {
        System.out.print("Error: " + e);
        System.exit(1);
    }
}