Example usage for java.lang System exit

Introduction

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

Prototype

public static void exit(int status)

Source Link

Document

Terminates the currently running Java Virtual Machine.

Usage

From source file:GetIP.java

public static void main(String[] args) {
    InetAddress address = null;// w  w w . j a  va2s .  c o  m
    try {
        address = InetAddress.getByName("www.java2s.com");
    } catch (UnknownHostException e) {
        System.exit(2);
    }
    System.out.println(address.getHostName() + "=" + address.getHostAddress());
    System.exit(0);
}

From source file:PasswordPromptingDemo.java

public static void main(String[] args) {
    Console console = System.console();

    if (console == null) {
        System.out.println("Console is not available");
        System.exit(1);
    }/* w w w .java 2 s  .  c  o m*/

    char[] password = "mustang".toCharArray();

    char[] passwordEntered = console.readPassword("Enter password: ");

    if (Arrays.equals(password, passwordEntered)) {
        System.out.println("\n Access granted \n");
        Arrays.fill(password, ' ');
        Arrays.fill(passwordEntered, ' ');
        System.out.println("OK ...");
    } else {
        System.out.println("Access denied");
        System.exit(1);
    }
}

From source file:OptionDialog.java

public static void main(String argv[]) {
    if (JOptionPane.showConfirmDialog(new JFrame(), "Do you want to quit this application ?", "Title",
            JOptionPane.YES_NO_OPTION) == JOptionPane.YES_OPTION)
        System.exit(0);

}

From source file:MailExample.java

public static void main(String args[]) throws Exception {
    if (args.length != 3) {
        System.err.println("Usage: java MailExample host from to");
        System.exit(-1);
    }//from  ww  w  . ja  v a2  s  . com

    String host = args[0];
    String from = args[1];
    String to = args[2];

    // Get system properties
    Properties props = System.getProperties();

    // Setup mail server
    props.put("mail.smtp.host", host);

    // Get session
    Session session = Session.getDefaultInstance(props, null);

    // Define message
    MimeMessage message = new MimeMessage(session);
    message.setFrom(new InternetAddress(from));
    message.addRecipient(Message.RecipientType.TO, new InternetAddress(to));
    message.setSubject("The Subject");
    message.setText("The Message");

    // Send message
    Transport.send(message);
}

From source file:Rename.java

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

    if (args.length < 2) {
        System.out.println("Useage: java Rename filename1 filename2");
        System.exit(-1);
    }/*www  .  j a v a2 s .c  o  m*/

    Hashtable env = new Hashtable();

    env.put(Context.INITIAL_CONTEXT_FACTORY, "com.sun.jndi.fscontext.RefFSContextFactory");
    env.put(Context.PROVIDER_URL, "file:" + initialContextString);

    Context initCtx = new InitialContext(env);
    System.out.println("Renaming " + args[0] + " to " + args[1]);
    initCtx.rename(args[0], args[1]);

}

From source file:MainClass.java

public static void main(String[] args) {
    Timer t = new Timer(1000, new Ticker());
    t.start();//  w ww  . ja  v a  2s  .co m
    JOptionPane.showMessageDialog(null, "Click OK to exit program");
    System.exit(0);
}

From source file:Copy.java

public static void main(String[] args) {
    FileChannel in = null;//from ww w .  j  av  a 2 s .co  m
    FileChannel out = null;

    if (args.length < 2) {
        System.out.println("Usage: java Copy <from> <to>");
        System.exit(1);
    }

    try {
        in = new FileInputStream(args[0]).getChannel();
        out = new FileOutputStream(args[1]).getChannel();
        out.transferFrom(in, 0L, (int) in.size());

    } catch (Exception e) {
        e.printStackTrace();
    }
}

From source file:PrintFile.java

public static void main(String args[]) throws Exception {
    if (args.length != 2) {
        System.err.println("usage : java PrintFile port file");
        System.err.println("sample: java PrintFile LPT1 sample.prn");
        System.exit(-1);
    }/* ww w. j a va  2  s  .com*/

    String portname = args[0];
    String filename = args[1];

    // Get port
    CommPortIdentifier portId = CommPortIdentifier.getPortIdentifier(portname);

    // Open port
    // Requires owner name and timeout
    CommPort port = portId.open("Java Printing", 30000);

    // Setup reading from file
    FileInputStream fis = new FileInputStream(filename);
    BufferedInputStream bis = new BufferedInputStream(fis);

    // Setup output
    OutputStream os = port.getOutputStream();
    BufferedOutputStream bos = new BufferedOutputStream(os);

    int c;
    while ((c = bis.read()) != -1) {
        bos.write(c);
    }

    // Close
    bos.close();
    bis.close();
    port.close();
}

From source file:Main.java

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

    int errCode = 0;
    if (!file.exists()) {
        errCode = 1;/*from  w w w  .  j a va  2 s.c  o m*/
    } else {
        errCode = 0;
    }

    // When the error code is not zero go terminate
    if (errCode > 0) {
        System.exit(errCode);
    }
}

From source file:Delete.java

public static void main(String[] args) throws Exception {
    String initalContextString = "/tmp/marketing/reports";

    if (args.length < 1) {
        System.out.println("Usage: java Delete filename");
        System.exit(-1);
    }//www.  ja  v a 2 s.co m
    System.out.println("This program assumes the context is " + initalContextString);

    Hashtable env = new Hashtable();
    env.put(Context.INITIAL_CONTEXT_FACTORY, "com.sun.jndi.fscontext.RefFSContextFactory");
    env.put(Context.PROVIDER_URL, "file:" + initalContextString);

    Context initCtx = new InitialContext(env);
    System.out.println("Attempting to unbind " + args[0]);

    initCtx.unbind(args[0]);

    System.out.println("Done.");

}