Example usage for java.lang System getProperty

List of usage examples for java.lang System getProperty

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Introduction

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

Prototype

public static String getProperty(String key)

Source Link

Document

Gets the system property indicated by the specified key.

Usage

From source file:FileTableHTML.java

public static void main(String[] args) throws IOException {
    // Get the name of the directory to display
    String dirname = (args.length > 0) ? args[0] : System.getProperty("user.home");

    // Create something to display it in.
    final JEditorPane editor = new JEditorPane();
    editor.setEditable(false); // we're browsing not editing
    editor.setContentType("text/html"); // must specify HTML text
    editor.setText(makeHTMLTable(dirname)); // specify the text to display

    // Set up the JEditorPane to handle clicks on hyperlinks
    editor.addHyperlinkListener(new HyperlinkListener() {
        public void hyperlinkUpdate(HyperlinkEvent e) {
            // Handle clicks; ignore mouseovers and other link-related events
            if (e.getEventType() == HyperlinkEvent.EventType.ACTIVATED) {
                // Get the HREF of the link and display it.
                editor.setText(makeHTMLTable(e.getDescription()));
            }//from  ww  w. jav  a 2  s  .c om
        }
    });

    // Put the JEditorPane in a scrolling window and display it.
    JFrame frame = new JFrame("FileTableHTML");
    frame.getContentPane().add(new JScrollPane(editor));
    frame.setSize(650, 500);
    frame.setVisible(true);
}

From source file:Main.java

public static void main(String[] args) {
    JFrame frame = new JFrame(Main.class.getSimpleName());
    frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
    final JTree tree = new JTree(createTreeModel(new File(System.getProperty("user.dir")), true));
    tree.setCellRenderer(new DefaultTreeCellRenderer() {
        @Override// w  w w  . j  av  a2 s .  co m
        public Component getTreeCellRendererComponent(JTree tree, Object value, boolean sel, boolean expanded,
                boolean leaf, int row, boolean hasFocus) {
            super.getTreeCellRendererComponent(tree, value, sel, expanded, leaf, row, hasFocus);
            if (value instanceof DefaultMutableTreeNode) {
                DefaultMutableTreeNode node = (DefaultMutableTreeNode) value;
                if (node.getUserObject() instanceof File) {
                    setText(((File) node.getUserObject()).getName());
                }
            }
            return this;
        }
    });
    tree.getSelectionModel().addTreeSelectionListener(e -> {
        Object object = tree.getLastSelectedPathComponent();
        if (object instanceof DefaultMutableTreeNode) {
            Object userObject = ((DefaultMutableTreeNode) object).getUserObject();
            if (userObject instanceof File) {
                File file = (File) userObject;
                System.out.println(
                        "Selected file" + file.getAbsolutePath() + " Is directory? " + file.isDirectory());
            }
        }
    });
    JScrollPane pane = new JScrollPane(tree);
    frame.add(pane);
    frame.setSize(400, 600);
    frame.setVisible(true);
}

From source file:Test.java

public static void main(String[] args) throws IOException {
    Path path = Paths.get("/users.txt");

    try (SeekableByteChannel sbc = Files.newByteChannel(path)) {
        ByteBuffer buffer = ByteBuffer.allocate(1024);

        sbc.position(4);/*from  w w  w .ja  va2s . com*/
        sbc.read(buffer);
        for (int i = 0; i < 5; i++) {
            System.out.print((char) buffer.get(i));
        }

        buffer.clear();
        sbc.position(0);
        sbc.read(buffer);
        for (int i = 0; i < 4; i++) {
            System.out.print((char) buffer.get(i));
        }
        sbc.position(0);
        buffer = ByteBuffer.allocate(1024);
        String encoding = System.getProperty("file.encoding");
        int numberOfBytesRead = sbc.read(buffer);
        System.out.println("Number of bytes read: " + numberOfBytesRead);
        while (numberOfBytesRead > 0) {
            buffer.rewind();
            System.out.print("[" + Charset.forName(encoding).decode(buffer) + "]");
            buffer.flip();
            numberOfBytesRead = sbc.read(buffer);
            System.out.println("\nNumber of bytes read: " + numberOfBytesRead);
        }

    }

}

From source file:eu.optimis.ics.p2p.MyFileAlterationObserver.java

public static void main(String[] args) throws Exception {
    System.out.println("Present Working Directory is : " + System.getProperty("user.dir"));
    File directory = new File(System.getProperty("user.dir") + "/data");

    IOFileFilter files = FileFilterUtils.and(FileFilterUtils.fileFileFilter(),
            FileFilterUtils.suffixFileFilter(".txt"));

    FileAlterationObserver observer = new FileAlterationObserver(directory, files);
    observer.initialize();//from  w ww. ja  v  a 2  s.c o m

    // Add Listener
    MyFileAlterationListener listener = new MyFileAlterationListener();
    observer.addListener(listener);

    FileAlterationMonitor monitor = new FileAlterationMonitor(1000, observer);
    monitor.addObserver(observer);

    monitor.start();

}

From source file:BufferToText.java

public static void main(String[] args) throws Exception {
    FileChannel fc = new FileOutputStream("data2.txt").getChannel();
    fc.write(ByteBuffer.wrap("Some text".getBytes()));
    fc.close();/*  w  ww. ja  v  a2 s  .  c o m*/
    fc = new FileInputStream("data2.txt").getChannel();
    ByteBuffer buff = ByteBuffer.allocate(BSIZE);
    fc.read(buff);
    buff.flip();
    // Doesn't work:
    System.out.println(buff.asCharBuffer());
    // Decode using this system's default Charset:
    buff.rewind();
    String encoding = System.getProperty("file.encoding");
    System.out.println("Decoded using " + encoding + ": " + Charset.forName(encoding).decode(buff));
    // Or, we could encode with something that will print:
    fc = new FileOutputStream("data2.txt").getChannel();
    fc.write(ByteBuffer.wrap("Some text".getBytes("UTF-16BE")));
    fc.close();
    // Now try reading again:
    fc = new FileInputStream("data2.txt").getChannel();
    buff.clear();
    fc.read(buff);
    buff.flip();
    System.out.println(buff.asCharBuffer());
    // Use a CharBuffer to write through:
    fc = new FileOutputStream("data2.txt").getChannel();
    buff = ByteBuffer.allocate(24); // More than needed
    buff.asCharBuffer().put("Some text");
    fc.write(buff);
    fc.close();
    // Read and display:
    fc = new FileInputStream("data2.txt").getChannel();
    buff.clear();
    fc.read(buff);
    buff.flip();
    System.out.println(buff.asCharBuffer());
}

From source file:de.iritgo.aktario.framework.IritgoClient.java

/**
 * The client main method.//from  w  ww  .  j  av a2 s. c  o m
 *
 * @param args The program args.
 */
public static void main(String[] args) {
    if (null == System.getProperty("swing.aatext")) {
        System.setProperty("swing.aatext", "true");
    }

    Options options = new Options();

    IritgoEngine.create(IritgoEngine.START_CLIENT, options, args);
}

From source file:com.home.ln_spring.ch5.env.EnvironmentSample.java

public static void main(String[] args) {
    GenericXmlApplicationContext ctx = new GenericXmlApplicationContext();
    ctx.refresh();//from  w ww . j av  a 2  s  . c o  m

    ConfigurableEnvironment env = ctx.getEnvironment();
    MutablePropertySources propertySources = env.getPropertySources();
    Map appMap = new HashMap();
    appMap.put("user.home", "/home/vitaliy/NetBeansProjects/Ln_Spring");
    propertySources.addFirst(new MapPropertySource("SPRING3_MAP", appMap));

    System.out.println("user.home: " + System.getProperty("user.home"));
    System.out.println("JAVA_HOME: " + System.getProperty("JAVA_HOME"));

    System.out.println("user.home: " + env.getProperty("user.home"));
    System.out.println("JAVA_HOME: " + env.getProperty("JAVA_HOME"));
}

From source file:org.bigtextml.drivers.BigMapReadTest.java

public static void main(String[] args) {
    /*/*from  ww w .j  av  a  2s  . c  om*/
    ApplicationContext context = 
    new ClassPathXmlApplicationContext(new String[] {"InMemoryDataMining.xml"});
    */
    System.out.println(System.getProperty("InvokedFromSpring"));
    //Map<String,List<Integer>> bm = context.getBean("bigMapTest",BigMap.class);
    Map<String, List<Integer>> bm = ManagementServices.getBigMap("tmCache");
    System.out.println(((BigMap) bm).getCacheName());
    int max = 1000000;

    String key = Integer.toString(max - 1);
    //bm.remove(key);
    for (int i = 0; i < 3; i++) {
        long millis = System.currentTimeMillis();
        System.out.println(bm.get(Integer.toString(500000)));
        System.out.println(System.currentTimeMillis() - millis);
    }
    bm.clear();
}

From source file:org.bigtextml.drivers.BigMapTest.java

public static void main(String[] args) {
    /*/*www  .j av  a 2s .  com*/
    ApplicationContext context = 
    new ClassPathXmlApplicationContext(new String[] {"InMemoryDataMining.xml"});
    */
    System.out.println(System.getProperty("InvokedFromSpring"));
    //Map<String,List<Integer>> bm = context.getBean("bigMapTest",BigMap.class);
    Map<String, List<Integer>> bm = ManagementServices.getBigMap("tmCache");
    System.out.println(((BigMap) bm).getCacheName());
    int max = 1000000;

    //bm.setMaxCapacity(1000);

    for (int i = 0; i < max; i++) {
        List<Integer> x = new ArrayList<Integer>();
        for (int j = 0; j < 5; j++) {
            x.add(j);
        }
        x.add(i);
        bm.put(Integer.toString(i), x);
    }
    String key = Integer.toString(max - 1);
    //bm.remove(key);
    for (int i = 0; i < 3; i++) {
        long millis = System.currentTimeMillis();
        System.out.println(bm.get(Integer.toString(500000)));
        System.out.println(System.currentTimeMillis() - millis);
    }
    bm.clear();
}

From source file:com.villemos.ispace.Starter.java

public static void main(String[] args) {

    System.out.println("Starting iSpace.");

    try {/*  ww  w . j av a  2 s .co m*/
        /** Read the configuration file as the first argument. If not set, then we try the default name. */
        String assemblyFile = System.getProperty("ispace.assembly") == null ? "assembly.xml"
                : System.getProperty("ispace.assembly");

        System.out.println("Using assembly file " + assemblyFile);

        new FileSystemXmlApplicationContext(assemblyFile);

        while (true) {
            try {
                Thread.sleep(5000);
            } catch (InterruptedException e) {
                e.printStackTrace();
            }
        }
    } catch (Exception e) {
        e.printStackTrace();
    }
}