Example usage for java.lang System err

Introduction

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

Prototype

PrintStream err

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Document

The "standard" error output stream.

Usage

From source file:TestKeyedObjectPool.java

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

   GenericKeyedObjectPool pool = new GenericKeyedObjectPool();
   pool.setFactory(new SkilledEmployeeFactory());

   pool.addObject("Java");
   pool.addObject("Java");
   pool.addObject("VB");
   pool.addObject("C++");

   System.err.println("Number of Java employees in pool: " +
     pool.getNumIdle("Java") + " out of total employees: " +
     pool.getNumIdle());//ww w  .j  a v a  2  s . c o  m

   Employee employee = (Employee)pool.borrowObject("Java");

   employee.doWork();

   System.err.println("Employee: "  + employee);

   pool.returnObject("Java", employee);

   System.err.println("Number of Java employees in pool: " +
     pool.getNumIdle("Java") + " out of total employees: " +
     pool.getNumIdle());
}

From source file:MainClass.java

public static void main(String[] args) {
    File aFile = new File("primes.txt");
    FileInputStream inFile = null;
    try {/*from  ww  w.  j a  v a 2  s .c om*/
        inFile = new FileInputStream(aFile);
    } catch (FileNotFoundException e) {
        e.printStackTrace(System.err);
    }
    FileChannel inChannel = inFile.getChannel();
    try {
        ByteBuffer lengthBuf = ByteBuffer.allocate(8);
        while (true) {
            if (inChannel.read(lengthBuf) == -1) {
                break;
            }
            lengthBuf.flip();
            int strLength = (int) lengthBuf.getDouble();
            ByteBuffer buf = ByteBuffer.allocate(2 * strLength + 8);
            if (inChannel.read(buf) == -1) {
                break;
            }
            buf.flip();
            byte[] strChars = new byte[2 * strLength];
            buf.get(strChars);
            System.out.println(strLength);
            System.out.println(ByteBuffer.wrap(strChars).asCharBuffer());
            System.out.println(buf.getLong());
            lengthBuf.clear();
        }
        inFile.close();
    } catch (IOException e) {
        e.printStackTrace(System.err);
    }
}

From source file:MainClass.java

public static void main(String[] args) {
    URL u;//from  w  w  w.j a v a2  s  .  com
    URLConnection uc;
    try {
        u = new URL("http://www.java2s.com");
        try {
            uc = u.openConnection();
            if (uc.getUseCaches()) {
                uc.setUseCaches(false);
            }
        } catch (IOException e) {
            System.err.println(e);
        }
    } catch (MalformedURLException e) {
        System.err.println(e);
    }

}

From source file:MainClass.java

public static void main(String[] args) {
    try {//w  ww. j  av  a  2s. c  o  m
        MyHttpHandler handler = new MyHttpHandler();
        URLConnection uc = handler.openConnection(new URL("http://www.ora.com"));
        if (!uc.getAllowUserInteraction()) {
            uc.setAllowUserInteraction(true);
        }
    } catch (MalformedURLException e) {
        System.err.println(e);
    } catch (IOException e) {
        System.err.println(e);
    }

}

From source file:Main.java

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

    long time = System.currentTimeMillis();
    FileTime fileTime = FileTime.fromMillis(time);
    Path path = Paths.get("C:/tutorial/Java/JavaFX", "Topic.txt");

    try {/* ww  w  .j  av a2 s.c o m*/
        Files.setLastModifiedTime(path, fileTime);
    } catch (IOException e) {
        System.err.println(e);
    }

}

From source file:ActiveTray.java

public static void main(String args[]) throws Exception {
    if (SystemTray.isSupported() == false) {
        System.err.println("No system tray available");
        return;/*from   w  w  w .  j a v  a 2s  .c o m*/
    }
    final SystemTray tray = SystemTray.getSystemTray();
    PropertyChangeListener propListener = new PropertyChangeListener() {
        public void propertyChange(PropertyChangeEvent evt) {
            TrayIcon oldTray[] = (TrayIcon[]) evt.getOldValue();
            TrayIcon newTray[] = (TrayIcon[]) evt.getNewValue();
            System.out.println(oldTray.length + " / " + newTray.length);
        }
    };
    tray.addPropertyChangeListener("trayIcons", propListener);
    Image image = Toolkit.getDefaultToolkit().getImage("jpgIcon.jpg");
    PopupMenu popup = new PopupMenu();
    MenuItem item = new MenuItem("Hello, World");
    final TrayIcon trayIcon = new TrayIcon(image, "Tip Text", popup);
    ActionListener menuActionListener = new ActionListener() {
        public void actionPerformed(ActionEvent e) {
            trayIcon.displayMessage("Good-bye", "Cruel World", TrayIcon.MessageType.WARNING);
        }
    };
    item.addActionListener(menuActionListener);
    popup.add(item);
    ActionListener actionListener = new ActionListener() {
        public void actionPerformed(ActionEvent e) {
            tray.remove(trayIcon);
        }
    };
    trayIcon.addActionListener(actionListener);
    tray.add(trayIcon);
}

From source file:Main.java

public static void main(String[] args) throws Exception {
    BufferedReader br = new BufferedReader(new FileReader("ravi.txt"));
    while (true) {
        String line = br.readLine();
        if (line == null)
            break;
        if (!UCODE_PATTERN.matcher(line).matches()) {
            System.err.println("Bad input: " + line);
        } else {//www  .  jav a 2s .co m
            String hex = line.substring(2, 6);
            int number = Integer.parseInt(hex, 16);
            System.out.println(hex + " -> " + ((char) number));
        }
    }
}

From source file:SimpleXMLTransform.java

static public void main(String[] arg) {
    if (arg.length != 3) {
        System.err.println("Usage: SimpleXMLTransform " + "<input.xml> <input.xsl> <output>");
        System.exit(1);// www.  j  a v a2 s .com
    }
    String inXML = arg[0];
    String inXSL = arg[1];
    String outTXT = arg[2];

    SimpleXMLTransform st = new SimpleXMLTransform();
    try {
        st.transform(inXML, inXSL, outTXT);
    } catch (TransformerConfigurationException e) {
        System.err.println("Invalid factory configuration");
        System.err.println(e);
    } catch (TransformerException e) {
        System.err.println("Error during transformation");
        System.err.println(e);
    }
}

From source file:URLGet.java

public static void main(String[] args) {
    BufferedReader in = null;/*from  w  w w  .jav a2s.  c o m*/
    if (args.length == 1) {
        try {
            URL url = new URL(args[0]);
            in = new BufferedReader(new InputStreamReader(url.openStream()));
            String line = null;
            while ((line = in.readLine()) != null)
                System.out.println(line);
        } catch (MalformedURLException ex) {
            System.err.println(ex);
        } catch (FileNotFoundException ex) {
            System.err.println("Failed to open stream to URL: " + ex);
        } catch (IOException ex) {
            System.err.println("Error reading URL content: " + ex);
        }
        if (in != null)
            try {
                in.close();
            } catch (IOException ex) {
            }
    } else
        System.err.println("Usage: URLGet URL");
}

From source file:Main.java

public static void main(String[] args) {
    Path ball_path = Paths.get("C:/tutorial/photos", "ball.png");
    byte[] ball_bytes = new byte[] { (byte) 0x89, (byte) 0x50, (byte) 0x4e, };

    try {//from ww w . jav a2 s. c  o m
        Files.write(ball_path, ball_bytes);
    } catch (IOException e) {
        System.err.println(e);
    }
}