Example usage for java.lang StringBuilder length

Introduction

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

Prototype

int length();

Source Link

Document

Returns the length of this character sequence.

Usage

From source file:Main.java

public static void main(String[] argv) {
    StringBuilder sb = new StringBuilder();
    sb.append("java2s.com");

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

    System.out.println(sb.capacity());
}

---

From source file:Main.java

public static void main(String args[]) {
    StringBuilder buffer = new StringBuilder("hello there from java2s.com");

    char charArray[] = new char[buffer.length()];
    buffer.getChars(0, buffer.length(), charArray, 0);
    System.out.print("The characters are: ");

}

---

From source file:Main.java

public static void main(String[] argv) {
    StringBuilder sb = new StringBuilder();
    sb.append("java2s.com");

    System.out.println(sb.length());
    System.out.println(sb.capacity());

    sb.trimToSize();/*from w ww.jav  a 2  s  .  c o m*/

    System.out.println(sb.length());
    System.out.println(sb.capacity());

}

---

From source file:Main.java

public static void main(String[] args) {
    StringBuilder sb = new StringBuilder(200); // Capacity:200, length:0
    sb.append("Hello"); // Capacity:200, length:5
    int len = sb.length(); // len is assigned 5
    int capacity = sb.capacity(); // capacity is assigned 200

}

---

From source file:Main.java

public static void main(String args[]) {
    StringBuilder sb = new StringBuilder();
    sb.ensureCapacity(100);//from  w w w  .j a  v a 2s  . com
    sb.append("java2s.com");
    System.out.println(sb.capacity());
    System.out.println(sb.length());
    System.out.println(sb.toString());

}

---

From source file:Main.java

public static void main(String[] args) {
    StringBuilder lipsum = new StringBuilder("Lorem ipsum dolor sit amet.");
    System.out.println("lipsum = " + lipsum.toString());

    lipsum.delete(0, 28);/*from  www.j a v a 2s.  co  m*/
    System.out.println("lipsum = " + lipsum.toString());

    lipsum.deleteCharAt(lipsum.length() - 1);
    System.out.println("lipsum = " + lipsum.toString());
}

---

From source file:de.zazaz.iot.bosch.indego.util.IndegoMqttAdapter.java

public static void main(String[] args) {
    System.setProperty("log4j.configurationFile", "log4j2-indegoMqttAdapter-normal.xml");

    Options options = new Options();

    StringBuilder commandList = new StringBuilder();
    for (DeviceCommand cmd : DeviceCommand.values()) {
        if (commandList.length() > 0) {
            commandList.append(", ");
        }//from w ww .  ja  va2  s.c  o m
        commandList.append(cmd.toString());
    }

    options.addOption(Option //
            .builder("c") //
            .longOpt("config") //
            .desc("The configuration file to use") //
            .required() //
            .hasArg() //
            .build());
    options.addOption(Option //
            .builder("d") //
            .longOpt("debug") //
            .desc("Logs more details") //
            .build());
    options.addOption(Option //
            .builder("?") //
            .longOpt("help") //
            .desc("Prints this help") //
            .build());

    CommandLineParser parser = new DefaultParser();
    CommandLine cmds = null;
    try {
        cmds = parser.parse(options, args);
    } catch (ParseException ex) {
        System.err.println(ex.getMessage());
        System.err.println();
        HelpFormatter formatter = new HelpFormatter();
        formatter.printHelp(IndegoMqttAdapter.class.getName(), options);
        System.exit(1);
        return;
    }

    if (cmds.hasOption("?")) {
        HelpFormatter formatter = new HelpFormatter();
        formatter.printHelp(CmdLineTool.class.getName(), options);
        return;
    }

    if (cmds.hasOption("d")) {
        System.setProperty("log4j.configurationFile", "log4j2-indegoMqttAdapter-debug.xml");
    }

    String configFileName = cmds.getOptionValue('c');
    File configFile = new File(configFileName);

    if (!configFile.exists()) {
        System.err.println(String.format("The specified config file (%s) does not exist", configFileName));
        System.err.println();
        System.exit(2);
        return;
    }

    Properties properties = new Properties();
    try (InputStream in = new FileInputStream(configFile)) {
        properties.load(in);
    } catch (IOException ex) {
        System.err.println(ex.getMessage());
        System.err.println(String.format("Was not able to load the properties file (%s)", configFileName));
        System.err.println();
    }

    MqttIndegoAdapterConfiguration config = new MqttIndegoAdapterConfiguration();
    config.setIndegoBaseUrl(properties.getProperty("indego.mqtt.device.base-url"));
    config.setIndegoUsername(properties.getProperty("indego.mqtt.device.username"));
    config.setIndegoPassword(properties.getProperty("indego.mqtt.device.password"));
    config.setMqttBroker(properties.getProperty("indego.mqtt.broker.connection"));
    config.setMqttClientId(properties.getProperty("indego.mqtt.broker.client-id"));
    config.setMqttUsername(properties.getProperty("indego.mqtt.broker.username"));
    config.setMqttPassword(properties.getProperty("indego.mqtt.broker.password"));
    config.setMqttTopicRoot(properties.getProperty("indego.mqtt.broker.topic-root"));
    config.setPollingIntervalMs(Integer.parseInt(properties.getProperty("indego.mqtt.polling-interval-ms")));

    MqttIndegoAdapter adapter = new MqttIndegoAdapter(config);
    adapter.startup();
}

---

From source file:de.zazaz.iot.bosch.indego.util.IndegoIftttAdapter.java

public static void main(String[] args) {
    System.setProperty("log4j.configurationFile", "log4j2-indegoIftttAdapter-normal.xml");

    Options options = new Options();

    StringBuilder commandList = new StringBuilder();
    for (DeviceCommand cmd : DeviceCommand.values()) {
        if (commandList.length() > 0) {
            commandList.append(", ");
        }//from  w  w  w .  j a  v a 2  s . c  om
        commandList.append(cmd.toString());
    }

    options.addOption(Option //
            .builder("c") //
            .longOpt("config") //
            .desc("The configuration file to use") //
            .required() //
            .hasArg() //
            .build());
    options.addOption(Option //
            .builder("d") //
            .longOpt("debug") //
            .desc("Logs more details") //
            .build());
    options.addOption(Option //
            .builder("?") //
            .longOpt("help") //
            .desc("Prints this help") //
            .build());

    CommandLineParser parser = new DefaultParser();
    CommandLine cmds = null;
    try {
        cmds = parser.parse(options, args);
    } catch (ParseException ex) {
        System.err.println(ex.getMessage());
        System.err.println();
        HelpFormatter formatter = new HelpFormatter();
        formatter.printHelp(IndegoIftttAdapter.class.getName(), options);
        System.exit(1);
        return;
    }

    if (cmds.hasOption("?")) {
        HelpFormatter formatter = new HelpFormatter();
        formatter.printHelp(CmdLineTool.class.getName(), options);
        return;
    }

    if (cmds.hasOption("d")) {
        System.setProperty("log4j.configurationFile", "log4j2-indegoIftttAdapter-debug.xml");
    }

    String configFileName = cmds.getOptionValue('c');
    File configFile = new File(configFileName);

    if (!configFile.exists()) {
        System.err.println(String.format("The specified config file (%s) does not exist", configFileName));
        System.err.println();
        System.exit(2);
        return;
    }

    Properties properties = new Properties();
    try (InputStream in = new FileInputStream(configFile)) {
        properties.load(in);
    } catch (IOException ex) {
        System.err.println(ex.getMessage());
        System.err.println(String.format("Was not able to load the properties file (%s)", configFileName));
        System.err.println();
    }

    IftttIndegoAdapterConfiguration config = new IftttIndegoAdapterConfiguration();
    config.setIftttMakerKey(properties.getProperty("indego.ifttt.maker.key"));
    config.setIftttIgnoreServerCertificate(
            Integer.parseInt(properties.getProperty("indego.ifttt.maker.ignore-server-certificate")) != 0);
    config.setIftttReceiverPort(Integer.parseInt(properties.getProperty("indego.ifttt.maker.receiver-port")));
    config.setIftttReceiverSecret(properties.getProperty("indego.ifttt.maker.receiver-secret"));
    config.setIftttOfflineEventName(properties.getProperty("indego.ifttt.maker.eventname-offline"));
    config.setIftttOnlineEventName(properties.getProperty("indego.ifttt.maker.eventname-online"));
    config.setIftttErrorEventName(properties.getProperty("indego.ifttt.maker.eventname-error"));
    config.setIftttErrorClearedEventName(properties.getProperty("indego.ifttt.maker.eventname-error-cleared"));
    config.setIftttStateChangeEventName(properties.getProperty("indego.ifttt.maker.eventname-state-change"));
    config.setIndegoBaseUrl(properties.getProperty("indego.ifttt.device.base-url"));
    config.setIndegoUsername(properties.getProperty("indego.ifttt.device.username"));
    config.setIndegoPassword(properties.getProperty("indego.ifttt.device.password"));
    config.setPollingIntervalMs(Integer.parseInt(properties.getProperty("indego.ifttt.polling-interval-ms")));

    IftttIndegoAdapter adapter = new IftttIndegoAdapter(config);
    adapter.startup();
}

---

From source file:org.eclipse.swt.snippets.Snippet179.java

public static void main(String[] args) {
    Display display = new Display();
    Shell shell = new Shell(display);
    shell.setText("Snippet 179");
    shell.setLayout(new GridLayout());
    final Text text = new Text(shell, SWT.BORDER);
    text.setText("YYYY/MM/DD");
    final Calendar calendar = Calendar.getInstance();
    text.addListener(SWT.Verify, new Listener() {
        boolean ignore;

        @Override// www.  j av  a 2 s .  c o  m
        public void handleEvent(Event e) {
            if (ignore)
                return;
            e.doit = false;
            StringBuilder buffer = new StringBuilder(e.text);
            char[] chars = new char[buffer.length()];
            buffer.getChars(0, chars.length, chars, 0);
            if (e.character == '\b') {
                for (int i = e.start; i < e.end; i++) {
                    switch (i) {
                    case 0: /* [Y]YYY */
                    case 1: /* Y[Y]YY */
                    case 2: /* YY[Y]Y */
                    case 3: /* YYY[Y] */ {
                        buffer.append('Y');
                        break;
                    }
                    case 5: /* [M]M*/
                    case 6: /* M[M] */ {
                        buffer.append('M');
                        break;
                    }
                    case 8: /* [D]D */
                    case 9: /* D[D] */ {
                        buffer.append('D');
                        break;
                    }
                    case 4: /* YYYY[/]MM */
                    case 7: /* MM[/]DD */ {
                        buffer.append('/');
                        break;
                    }
                    default:
                        return;
                    }
                }
                text.setSelection(e.start, e.start + buffer.length());
                ignore = true;
                text.insert(buffer.toString());
                ignore = false;
                text.setSelection(e.start, e.start);
                return;
            }

            int start = e.start;
            if (start > 9)
                return;
            int index = 0;
            for (int i = 0; i < chars.length; i++) {
                if (start + index == 4 || start + index == 7) {
                    if (chars[i] == '/') {
                        index++;
                        continue;
                    }
                    buffer.insert(index++, '/');
                }
                if (chars[i] < '0' || '9' < chars[i])
                    return;
                if (start + index == 5 && '1' < chars[i])
                    return; /* [M]M */
                if (start + index == 8 && '3' < chars[i])
                    return; /* [D]D */
                index++;
            }
            String newText = buffer.toString();
            int length = newText.length();
            StringBuilder date = new StringBuilder(text.getText());
            date.replace(e.start, e.start + length, newText);
            calendar.set(Calendar.YEAR, 1901);
            calendar.set(Calendar.MONTH, Calendar.JANUARY);
            calendar.set(Calendar.DATE, 1);
            String yyyy = date.substring(0, 4);
            if (yyyy.indexOf('Y') == -1) {
                int year = Integer.parseInt(yyyy);
                calendar.set(Calendar.YEAR, year);
            }
            String mm = date.substring(5, 7);
            if (mm.indexOf('M') == -1) {
                int month = Integer.parseInt(mm) - 1;
                int maxMonth = calendar.getActualMaximum(Calendar.MONTH);
                if (0 > month || month > maxMonth)
                    return;
                calendar.set(Calendar.MONTH, month);
            }
            String dd = date.substring(8, 10);
            if (dd.indexOf('D') == -1) {
                int day = Integer.parseInt(dd);
                int maxDay = calendar.getActualMaximum(Calendar.DATE);
                if (1 > day || day > maxDay)
                    return;
                calendar.set(Calendar.DATE, day);
            } else {
                if (calendar.get(Calendar.MONTH) == Calendar.FEBRUARY) {
                    char firstChar = date.charAt(8);
                    if (firstChar != 'D' && '2' < firstChar)
                        return;
                }
            }
            text.setSelection(e.start, e.start + length);
            ignore = true;
            text.insert(newText);
            ignore = false;
        }
    });
    shell.pack();
    shell.open();
    while (!shell.isDisposed()) {
        if (!display.readAndDispatch())
            display.sleep();
    }
    display.dispose();
}

---

From source file:com.genentech.retrival.tabExport.TABExporter.java

public static void main(String[] args) throws ParseException, JDOMException, IOException {
    long start = System.currentTimeMillis();
    int nStruct = 0;

    // create command line Options object
    Options options = new Options();
    Option opt = new Option("sqlFile", true, "sql-xml file");
    opt.setRequired(true);//from   w  ww  .j a v a 2  s  . c  o m
    options.addOption(opt);

    opt = new Option("sqlName", true, "name of SQL element in xml file");
    opt.setRequired(true);
    options.addOption(opt);

    opt = new Option("o", true, "output file");
    opt.setRequired(false);
    options.addOption(opt);

    opt = new Option("newLineReplacement", true,
            "If given newlines in fields will be replaced by this string.");
    options.addOption(opt);

    opt = new Option("noHeader", false, "Do not output header line");
    options.addOption(opt);

    CommandLineParser parser = new BasicParser();
    CommandLine cmd = null;
    try {
        cmd = parser.parse(options, args);
    } catch (Exception e) {
        System.err.println(e.getMessage());
        exitWithHelp(options);
    }
    args = cmd.getArgs();

    String outFile = cmd.getOptionValue("o");
    String sqlFile = cmd.getOptionValue("sqlFile");
    String sqlName = cmd.getOptionValue("sqlName");
    String newLineReplacement = cmd.getOptionValue("newLineReplacement");

    args = cmd.getArgs();

    try {
        PrintStream out = System.out;
        if (outFile != null)
            out = new PrintStream(outFile);

        SQLStatement stmt = SQLStatement.createFromFile(new File(sqlFile), sqlName);
        Object[] sqlArgs = args;
        if (stmt.getParamTypes().length != args.length) {
            System.err.printf(
                    "\nWarining sql statement needs %d parameters but got only %d. Filling up with NULLs.\n",
                    stmt.getParamTypes().length, args.length);
            sqlArgs = new Object[stmt.getParamTypes().length];
            System.arraycopy(args, 0, sqlArgs, 0, args.length);
        }

        Selecter sel = Selecter.factory(stmt);
        if (!sel.select(sqlArgs)) {
            System.err.println("No rows returned!");
            System.exit(0);
        }

        String[] fieldNames = sel.getFieldNames();
        if (fieldNames.length == 0) {
            System.err.println("Query did not return any columns");
            exitWithHelp(options);
        }

        if (!cmd.hasOption("noHeader")) {
            StringBuilder sb = new StringBuilder(200);
            for (String f : fieldNames)
                sb.append(f).append('\t');
            if (sb.length() > 1)
                sb.setLength(sb.length() - 1); // chop last \t
            String header = sb.toString();

            out.println(header);
        }

        StringBuilder sb = new StringBuilder(200);
        while (sel.hasNext()) {
            Record sqlRec = sel.next();
            sb.setLength(0);

            for (int i = 0; i < fieldNames.length; i++) {
                String fld = sqlRec.getStrg(i);
                if (newLineReplacement != null)
                    fld = NEWLinePattern.matcher(fld).replaceAll(newLineReplacement);

                sb.append(fld).append('\t');
            }

            if (sb.length() > 1)
                sb.setLength(sb.length() - 1); // chop last \t
            String row = sb.toString();

            out.println(row);

            nStruct++;
        }

    } catch (Exception e) {
        throw new Error(e);
    } finally {
        System.err.printf("TABExporter: Exported %d records in %dsec\n", nStruct,
                (System.currentTimeMillis() - start) / 1000);
    }
}

---

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