Example usage for java.lang StringBuilder StringBuilder

Introduction

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

Prototype

@HotSpotIntrinsicCandidate
public StringBuilder() 

Source Link

Document

Constructs a string builder with no characters in it and an initial capacity of 16 characters.

Usage

From source file:Main.java

public static void main(String[] args) throws Exception {
    String password = "secret";
    String algorithm = "SHA";

    byte[] plainText = password.getBytes();

    MessageDigest md = MessageDigest.getInstance(algorithm);

    md.reset();//from  w  w w.  j  av a 2 s.  c  om
    md.update(plainText);
    byte[] encodedPassword = md.digest();

    StringBuilder sb = new StringBuilder();
    for (int i = 0; i < encodedPassword.length; i++) {
        if ((encodedPassword[i] & 0xff) < 0x10) {
            sb.append("0");
        }
        sb.append(Long.toString(encodedPassword[i] & 0xff, 16));
    }
    System.out.println("Plain    : " + password);
    System.out.println("Encrypted: " + sb.toString());
}

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From source file:Main.java

public static void main(String[] args) throws Exception {
    InetAddress ip = InetAddress.getLocalHost();
    System.out.println("Current IP address : " + ip.getHostAddress());

    NetworkInterface network = NetworkInterface.getByInetAddress(ip);
    byte[] mac = network.getHardwareAddress();
    System.out.print("Current MAC address : ");

    StringBuilder sb = new StringBuilder();
    for (int i = 0; i < mac.length; i++) {
        sb.append(String.format("%02X%s", mac[i], (i < mac.length - 1) ? "-" : ""));
    }//from   w  w w .  ja va 2 s. c om
    System.out.println(sb.toString());
}

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From source file:Main.java

public static void main(String[] args) {
    StringBuilder sb = new StringBuilder();
    for (int i = 0; i < 100; i++) {
        sb.appendCodePoint(1064124);/*from   w  ww  .  j  ava2  s  .  c  o m*/
    }
    Charset cs = StandardCharsets.UTF_8;

    System.out.println(bytesRequiredToEncode(new String(sb), cs));
    System.out.println(new String(sb).getBytes(cs).length);
}

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From source file:Main.java

public static void main(String args[]) throws Exception {
    FileInputStream fileInputStream = new FileInputStream(new File("src/file.xml"));
    DocumentBuilderFactory builderFactory = DocumentBuilderFactory.newInstance();
    DocumentBuilder builder = builderFactory.newDocumentBuilder();
    Document doc1 = builder.parse(fileInputStream);
    doc1.getDocumentElement().normalize();
    NodeList kList1 = doc1.getElementsByTagName("item");

    StringBuilder stringBuilder = new StringBuilder();

    for (int temp = 0; temp < kList1.getLength(); temp++) {
        Node kNode1 = kList1.item(temp);
        System.out.println("\nCurrent Element :" + kNode1.getNodeName());
        if (kNode1.getNodeType() == Node.ELEMENT_NODE) {
            Element eElement = (Element) kNode1;
            System.out.println("node name" + eElement.getNodeName());
            Node in = eElement.getFirstChild();
            if ((in.getTextContent() != null) && !(in.getTextContent()).isEmpty()
                    && !(in.getTextContent().length() == 0))
                stringBuilder.append(in.getTextContent());
        }/*  ww w. j a va 2 s .  co  m*/
    }
    System.out.println(stringBuilder);
}

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From source file:br.ufjf.video.Video.java

public static void main(String args[]) {

    StringBuilder sb = new StringBuilder();

    XMLManager.loadXMLFile("../files/ead_fonseca_05_sd.xml");

    sb.append(getTriple(XMLManager.getValue("entry"), QodraOntology.TITLE,
            StringEscapeUtils.escapeJava(XMLManager.getValue("title"))));
    sb.append("\n");
    sb.append(getTriple(XMLManager.getValue("entry"), QodraOntology.ABSTRACT,
            StringEscapeUtils.escapeJava(XMLManager.getValue("course"))));
    sb.append("\n");
    sb.append(getTriple(XMLManager.getValue("entry"), QodraOntology.DATE, XMLManager.getValue("date")));
    sb.append("\n");
    //sb.append(getTriple(XMLManager.getValue("entry"),QodraOntology.REFERENCES,XMLManager.getValue("title")));
    //sb.append("\n");
    //sb.append(getTriple(XMLManager.getValue("entry"),QodraOntology.DESCRIPTION,XMLManager.getValue("title")));
    //sb.append("\n");
    sb.append(getTriple(XMLManager.getValue("entry"), QodraOntology.PUBLISHER,
            StringEscapeUtils.escapeJava(XMLManager.getValue("name"))));
    sb.append("\n");
    sb.append(getTriple(XMLManager.getValue("entry"), QodraOntology.CREATOR,
            StringEscapeUtils.escapeJava(XMLManager.getValue("entity"))));
    sb.append("\n");
    //sb.append(getTriple(XMLManager.getValue("entry"),QodraOntology.LICENSE,XMLManager.getValue("title")));
    //sb.append("\n");
    sb.append(getTriple(XMLManager.getValue("entry"), QodraOntology.LANGUAGE, XMLManager.getValue("language")));
    sb.append("\n");
    //sb.append(getTriple(XMLManager.getValue("entry"),QodraOntology.EDUCATIONLEVEL,XMLManager.getValue("title")));
    //sb.append("\n");

    FileManager.writeFile("../files/allegro.graph.nt", sb.toString());

    System.out.println(sb.toString());

}

---

From source file:Main.java

public static void main(String[] args) {
    JFrame frame = new JFrame();
    JFileChooser fc = new JFileChooser();
    fc.setMultiSelectionEnabled(true);//from ww w . j  av a2  s  .  c o m
    fc.setCurrentDirectory(new File("C:\\tmp"));
    JButton btn1 = new JButton("Show Dialog");
    btn1.addActionListener(e -> fc.showDialog(frame, "Choose"));
    JButton btn2 = new JButton("Show Open Dialog");
    btn2.addActionListener(e -> {
        int retVal = fc.showOpenDialog(frame);
        if (retVal == JFileChooser.APPROVE_OPTION) {
            File[] selectedfiles = fc.getSelectedFiles();
            StringBuilder sb = new StringBuilder();
            for (int i = 0; i < selectedfiles.length; i++) {
                sb.append(selectedfiles[i].getName());
                sb.append("\n");
            }
            JOptionPane.showMessageDialog(frame, sb.toString());
        }
    });
    JButton btn3 = new JButton("Show Save Dialog");
    btn3.addActionListener(e -> fc.showSaveDialog(frame));
    Container pane = frame.getContentPane();
    pane.setLayout(new GridLayout(3, 1, 10, 10));
    pane.add(btn1);
    pane.add(btn2);
    pane.add(btn3);
    frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
    frame.pack();
    frame.setVisible(true);
}

---

From source file:be.dnsbelgium.rdap.client.ManGenerator.java

public static void main(String[] args) {
    Options options = new RDAPOptions(Locale.ENGLISH);
    Iterator<Option> it = options.getOptions().iterator();
    StringBuilder sb = new StringBuilder();
    while (it.hasNext()) {
        Option option = it.next();
        sb.append(String.format(".IP \"%s\"\n%s\n", getOptionString(option),
                option.getDescription() == null ? "" : option.getDescription()));
    }//from  w  ww  . ja v  a 2 s  . c  om
    System.out.println(sb.toString());
}

---

From source file:com.util.finalProy.java

/**
 * @param args the command line arguments
 *///from  w  w  w.j  a va2s  . c  o  m
public static void main(String[] args) throws JSONException {
    // TODO code application logic her
    System.out.println("OBTENER SOLO UN ARRAY DE CADENA JSON");
    String myURL = "http://192.168.5.44/app_dev.php/cus/getaccount/50241109321.json";
    System.out.println("Requested URL:" + myURL);
    StringBuilder sb = new StringBuilder();
    URLConnection urlConn = null;
    InputStreamReader in = null;
    try {
        URL url = new URL(myURL);
        urlConn = url.openConnection();
        if (urlConn != null) {
            urlConn.setReadTimeout(60 * 1000);
        }
        if (urlConn != null && urlConn.getInputStream() != null) {
            in = new InputStreamReader(urlConn.getInputStream(), Charset.defaultCharset());

            BufferedReader bufferedReader = new BufferedReader(in);
            if (bufferedReader != null) {
                int cp;
                while ((cp = bufferedReader.read()) != -1) {
                    sb.append((char) cp);
                }
                bufferedReader.close();
            }
        }
        in.close();
    } catch (Exception e) {
        e.printStackTrace();
        throw new RuntimeException("Exception while calling URL:" + myURL, e);
    }
    String jsonResult = sb.toString();
    System.out.println(sb.toString());
    System.out.println(
            "\n\n--------------------OBTENEMOS OBJETO JSON NATIVO DE LA PAGINA, USAMOS EL ARRAY DATA---------------------------\n\n");
    JSONObject objJason = new JSONObject(jsonResult);
    JSONArray dataJson = new JSONArray();
    dataJson = objJason.getJSONArray("data");

    System.out.println("objeto normal 1 " + dataJson.toString());
    //
    //
    System.out.println(
            "\n\n--------------------CREAMOS UN STRING JSON2 REEMPLAZANDO LOS CORCHETES QUE DAN ERROR---------------------------\n\n");
    String jsonString2 = dataJson.toString();
    String temp = dataJson.toString();
    temp = jsonString2.replace("[", "");
    jsonString2 = temp.replace("]", "");
    System.out.println("new json string" + jsonString2);

    JSONObject objJson2 = new JSONObject(jsonString2);
    System.out.println("el objeto simple json es " + objJson2.toString());

    System.out.println(
            "\n\n--------------------CREAMOS UN OBJETO JSON CON EL ARRAR ACCOUN---------------------------\n\n");

    String account1 = objJson2.optString("account");
    System.out.println(account1);
    JSONObject objJson3 = new JSONObject(account1);
    System.out.println("el ULTIMO OBJETO SIMPLE ES  " + objJson3.toString());
    System.out.println(
            "\n\n--------------------EMPEZAMOS A RECIBIR LOS PARAMETROS QUE HAY EN EL OBJETO JSON---------------------------\n\n");
    String firstName = objJson3.getString("first_name");
    System.out.println(firstName);
    System.out.println(objJson3.get("id"));
    System.out.println(
            "\n\n--------------------TRATAMOS DE PASAR TODO EL ACCOUNT A OBJETO JAVA---------------------------\n\n");
    Gson gson = new Gson();
    Account account = gson.fromJson(objJson3.toString(), Account.class);
    System.out.println(account.getFirst_name());
    System.out.println(account.getCreation());
}

---

From source file:edu.cuhk.hccl.TripRealRatingsApp.java

public static void main(String[] args) throws IOException {
    File dir = new File(args[0]);
    File outFile = new File(args[1]);
    outFile.delete();/*from   w w w .  j  a  va2s. c o m*/

    StringBuilder buffer = new StringBuilder();

    for (File file : dir.listFiles()) {
        List<String> lines = FileUtils.readLines(file, "UTF-8");
        String hotelID = file.getName().split("_")[1];
        String author = null;
        boolean noContent = false;
        for (String line : lines) {
            if (line.startsWith("<Author>")) {
                try {
                    author = line.split(">")[1].trim();
                } catch (ArrayIndexOutOfBoundsException e) {
                    System.out.println("[ERROR] An error occured on this line:");
                    System.out.println(line);
                    continue;
                }
            } else if (line.startsWith("<Content>")) { // ignore records if they have no content
                String content = line.split(">")[1].trim();
                if (content == null || content.equals(""))
                    noContent = true;
            } else if (line.startsWith("<Rating>")) {
                String[] rates = line.split(">")[1].trim().split("\t");

                if (noContent || rates.length != 8)
                    continue;

                // Change missing rating from -1 to 0
                for (int i = 0; i < rates.length; i++) {
                    if (rates[i].equals("-1"))
                        rates[i] = "0";
                }

                buffer.append(author + "\t");
                buffer.append(hotelID + "\t");

                // overall
                buffer.append(rates[0] + "\t");
                // location
                buffer.append(rates[3] + "\t");
                // room
                buffer.append(rates[2] + "\t");
                // service
                buffer.append(rates[6] + "\t");
                // value
                buffer.append(rates[1] + "\t");
                // cleanliness
                buffer.append(rates[4] + "\t");

                buffer.append("\n");
            }
        }

        // Write once for each file
        FileUtils.writeStringToFile(outFile, buffer.toString(), true);

        // Clear buffer
        buffer.setLength(0);
        System.out.printf("[INFO] Finished processing %s\n", file.getName());
    }
    System.out.println("[INFO] All processinig are finished!");
}

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From source file:net.vnt.ussdapp.util.ContextTest.java

public static void main(String[] args) {
    ApplicationContext context = new ClassPathXmlApplicationContext(new String[] { "/context.xml" });
    ContextProperties ctxProp = (ContextProperties) Context.getInstance().getBean("ContextProperties");
    TXTParser parser = (TXTParser) Context.getInstance().getBean("TXTParser");
    String mainmenu = ctxProp.getProperty("ussdapp.wrong");
    try {//w w w .j a va  2s .  c o m
        Vector<String> vs = parser.readFields(mainmenu);
        Enumeration<String> ens = vs.elements();
        StringBuilder sb = new StringBuilder();
        while (ens.hasMoreElements()) {
            sb.append(ens.nextElement()).append("\n");
        }
        System.out.println(sb.toString());
    } catch (IOException ex) {
        Logger.getLogger(ContextTest.class.getName()).log(Level.SEVERE, null, ex);
    }
    System.out.println(System.getProperty("os.arch"));
}

---

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