Example usage for java.lang System exit

List of usage examples for java.lang System exit

  1. HOME
  2. Java
  3. java
  4. java.lang.*
  5. System
  6. 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:fsm.test.TestDao.java

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

    testAgentProductDao();
    System.exit(0);
}

From source file:GradientPaintDemo.java

public static void main(String s[]) {
    JFrame f = new JFrame();
    f.addWindowListener(new WindowAdapter() {
        public void windowClosing(WindowEvent e) {
            System.exit(0);
        }//from w  w  w .  j  ava2  s . c om
    });
    GradientPaintDemo p = new GradientPaintDemo();
    f.getContentPane().add("Center", p);
    p.init();
    f.pack();
    f.setSize(new Dimension(250, 250));
    f.show();
}

From source file:MainClass.java

public static void main(String[] args) {
    int count = 100;

    long[] numbers = new long[count];

    for (int i = 0; i < numbers.length; i++) {
        numbers[i] = i;//from w  ww.  j  a  v a 2  s  .co  m

    }
    File aFile = new File("data.bin");
    FileOutputStream outputFile = null;
    try {
        outputFile = new FileOutputStream(aFile);
    } catch (FileNotFoundException e) {
        e.printStackTrace(System.err);
        System.exit(1);
    }
    FileChannel file = outputFile.getChannel();
    final int BUFFERSIZE = 100;
    ByteBuffer buf = ByteBuffer.allocate(BUFFERSIZE);
    LongBuffer longBuf = buf.asLongBuffer();

    int numberWritten = 0;

    while (numberWritten < numbers.length) {
        longBuf.put(numbers, numberWritten, min(longBuf.capacity(), numbers.length - numberWritten));
        buf.limit(8 * longBuf.position());
        try {
            file.write(buf);
            numberWritten += longBuf.position();
        } catch (IOException e) {
            e.printStackTrace(System.err);
            System.exit(1);
        }
        longBuf.clear();
        buf.clear();
    }

    try {
        System.out.println("File written is " + file.size() + " bytes.");
        outputFile.close();
    } catch (IOException e) {
        e.printStackTrace(System.err);
        System.exit(1);
    }
}

From source file:MainClass.java

public static void main(String[] argv) {
    JFrame frame = new MainClass();
    frame.addWindowListener(new WindowAdapter() {
        public void windowClosing(WindowEvent e) {
            System.exit(0);
        }//  w w  w  .  j a  v a  2 s.c  o  m
    });

    frame.pack();
    frame.setVisible(true);
}

From source file:MulticastSniffer.java

public static void main(String[] args) {

    InetAddress ia = null;//from w w  w .  jav a  2 s .com
    byte[] buffer = new byte[65509];
    DatagramPacket dp = new DatagramPacket(buffer, buffer.length);
    int port = 0;

    try {
        try {
            ia = InetAddress.getByName(args[0]);
        } catch (UnknownHostException e) {
            //
        }
        port = Integer.parseInt(args[1]);
    } // end try
    catch (Exception e) {
        System.err.println(e);
        System.err.println("Usage: java MulticastSniffer MulticastAddress port");
        System.exit(1);
    }

    try {
        MulticastSocket ms = new MulticastSocket(port);
        ms.joinGroup(ia);
        while (true) {
            ms.receive(dp);
            String s = new String(dp.getData(), 0, 0, dp.getLength());
            System.out.println(s);
        }
    } catch (SocketException se) {
        System.err.println(se);
    } catch (IOException ie) {
        System.err.println(ie);
    }

}

From source file:RandomFileTest.java

public static void main(String[] args) {
    Employee[] staff = new Employee[3];

    staff[0] = new Employee("Harry Hacker", 35000);
    staff[1] = new Employee("Carl Cracker", 75000);
    staff[2] = new Employee("Tony Tester", 38000);
    try {/*from  w  w w  .j a va  2s. c o m*/
        DataOutputStream out = new DataOutputStream(new FileOutputStream("employee.dat"));
        for (int i = 0; i < staff.length; i++)
            staff[i].writeData(out);
        out.close();
    } catch (IOException e) {
        System.out.print("Error: " + e);
        System.exit(1);
    }

    try {
        RandomAccessFile in = new RandomAccessFile("employee.dat", "r");
        int count = (int) (in.length() / Employee.RECORD_SIZE);
        Employee[] newStaff = new Employee[count];

        for (int i = count - 1; i >= 0; i--) {
            newStaff[i] = new Employee();
            in.seek(i * Employee.RECORD_SIZE);
            newStaff[i].readData(in);
        }
        for (int i = 0; i < newStaff.length; i++)
            newStaff[i].print();
    } catch (IOException e) {
        System.out.print("Error: " + e);
        System.exit(1);
    }
}

From source file:ShowMethods.java

public static void main(String[] args) {
    if (args.length < 1) {
        System.out.println(usage);
        System.exit(0);
    }/*from   w  w w. j a  va  2s. c  om*/
    int lines = 0;
    try {
        Class c = Class.forName(args[0]);
        Method[] m = c.getMethods();
        Constructor[] ctor = c.getConstructors();
        if (args.length == 1) {
            for (int i = 0; i < m.length; i++)
                System.out.println(p.matcher(m[i].toString()).replaceAll(""));
            for (int i = 0; i < ctor.length; i++)
                System.out.println(p.matcher(ctor[i].toString()).replaceAll(""));
            lines = m.length + ctor.length;
        } else {
            for (int i = 0; i < m.length; i++)
                if (m[i].toString().indexOf(args[1]) != -1) {
                    System.out.println(p.matcher(m[i].toString()).replaceAll(""));
                    lines++;
                }
            for (int i = 0; i < ctor.length; i++)
                if (ctor[i].toString().indexOf(args[1]) != -1) {
                    System.out.println(p.matcher(ctor[i].toString()).replaceAll(""));
                    lines++;
                }
        }
    } catch (ClassNotFoundException e) {
        System.out.println("No such class: " + e);
    }
}

From source file:NameLister.java

public static void main(String args[]) {

    if (args.length != 1) {
        System.err.println("Usage: java NameLister xmlfile.xml");
        System.exit(-1);
    }//w  w  w .  j  av  a 2  s  .co  m

    try {

        SAXParserFactory factory = SAXParserFactory.newInstance();
        SAXParser saxParser = factory.newSAXParser();

        DefaultHandler handler = new DefaultHandler() {
            boolean name = false;

            public void startElement(String uri, String localName, String qName, Attributes attributes)
                    throws SAXException {
                if (qName.equalsIgnoreCase("NAME")) {
                    name = true;
                }
            }

            public void characters(char ch[], int start, int length) throws SAXException {
                if (name) {
                    System.out.println("Name: " + new String(ch, start, length));
                    name = false;
                }
            }
        };

        saxParser.parse(args[0], handler);

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

From source file:com.threerings.getdown.tools.AppletParamSigner.java

public static void main(String[] args) {
    try {// w  w w  . j  a  va  2  s  .  c o m
        if (args.length != 7) {
            System.err
                    .println("AppletParamSigner keystore storepass alias keypass " + "appbase appname imgpath");
            System.exit(255);
        }

        String keystore = args[0];
        String storepass = args[1];
        String alias = args[2];
        String keypass = args[3];
        String appbase = args[4];
        String appname = args[5];
        String imgpath = args[6];
        String params = appbase + appname + imgpath;

        KeyStore store = KeyStore.getInstance("JKS");
        store.load(new BufferedInputStream(new FileInputStream(keystore)), storepass.toCharArray());
        PrivateKey key = (PrivateKey) store.getKey(alias, keypass.toCharArray());
        Signature sig = Signature.getInstance("SHA1withRSA");
        sig.initSign(key);
        sig.update(params.getBytes());
        String signed = new String(Base64.encodeBase64(sig.sign()));
        System.out.println("<param name=\"appbase\" value=\"" + appbase + "\" />");
        System.out.println("<param name=\"appname\" value=\"" + appname + "\" />");
        System.out.println("<param name=\"bgimage\" value=\"" + imgpath + "\" />");
        System.out.println("<param name=\"signature\" value=\"" + signed + "\" />");

    } catch (Exception e) {
        System.err.println("Failed to produce signature.");
        e.printStackTrace();
    }
}

From source file:DataFileTest.java

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

    staff.raiseSalary(5.25);//  ww w .  j  a v a  2s  . 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);
    }
}