Example usage for java.lang StringBuilder deleteCharAt

Introduction

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

Prototype

@Override
public StringBuilder deleteCharAt(int index)

Source Link

Usage

From source file:com.rincliu.library.util.RLNetUtil.java

/**
 * Returns MAC address of the given interface name.
 * /*from  ww  w  .  j av  a2 s  . c o m*/
 * @param interfaceName eth0, wlan0 or NULL=use first interface
 * @return mac address or empty string
 */
public static String getMACAddress(String interfaceName) {
    try {
        List<NetworkInterface> interfaces = Collections.list(NetworkInterface.getNetworkInterfaces());
        for (NetworkInterface intf : interfaces) {
            if (interfaceName != null) {
                if (!intf.getName().equalsIgnoreCase(interfaceName))
                    continue;
            }
            byte[] mac = intf.getHardwareAddress();
            if (mac == null)
                return "";
            StringBuilder buf = new StringBuilder();
            for (int idx = 0; idx < mac.length; idx++)
                buf.append(String.format("%02X:", mac[idx]));
            if (buf.length() > 0)
                buf.deleteCharAt(buf.length() - 1);
            return buf.toString();
        }
    } catch (Exception ex) {
    } // for now eat exceptions
    return "";
    // try
    // { // this is so Linux hack return
    // loadFileAsString("/sys/class/net/" + interfaceName +
    // "/address").toUpperCase().trim();
    // }
    // catch (IOException e)
    // {
    // e.printStackTrace();
    // return null;
    // }
}

From source file:com.zxy.commons.lang.utils.StringsUtils.java

/**
 * ??/*  w w w  . j a va  2s .  c o m*/
 * 
 * @param arr 
 * @return 
 */
public static String array2String(String[] arr) {
    StringBuilder tmp = new StringBuilder();
    if (arr != null && arr.length > 0) {
        for (String a : arr) {
            tmp.append(DEFAULT_SPLIT).append(a);
        }
        tmp.deleteCharAt(0);
    }
    return tmp.toString();
}

From source file:com.fhc25.percepcion.osiris.mapviewer.common.data.OsirisBackendCaller.java

private static String convertStreamToString(InputStream is) {
    BufferedReader reader = new BufferedReader(new InputStreamReader(is));
    StringBuilder sb = new StringBuilder();
    String line = null;//from  w  w  w  .j  a v a2s.c o m
    int lineCount = 0;
    try {
        while ((line = reader.readLine()) != null) {
            sb.append(line + "\n");
            lineCount++;
        }
        if (lineCount == 1) {
            sb.deleteCharAt(sb.length() - 1);
        }
        is.close();

    } catch (IOException e) {
    }
    return sb.toString();
}

From source file:com.linkedin.flashback.http.HttpUtilities.java

/**
 * Converts an ordered map of key / value pairs to a URL parameter string
 * @param params the map of key / value pairs
 * @return a string representation of the key / value pairs, delimited by '&'
 *///from  ww  w .ja va2  s  .co  m
static public String urlParamsToString(Map<String, String> params, String charset)
        throws UnsupportedEncodingException {
    if (params.size() == 0) {
        return "";
    }
    StringBuilder resultBuilder = new StringBuilder();
    for (Map.Entry<String, String> entry : params.entrySet()) {
        String encodedName = URLEncoder.encode(entry.getKey(), charset);
        String encodedValue = URLEncoder.encode(entry.getValue(), charset);
        resultBuilder.append(encodedName).append("=").append(encodedValue).append("&");
    }
    resultBuilder.deleteCharAt(resultBuilder.length() - 1);
    return resultBuilder.toString();
}

From source file:com.symphony.jirabot.clients.QuandlClient.java

private static String mapToQueryString(HashMap<String, Object> parameters) {
    if (parameters == null || parameters.size() == 0) {
        return "";
    }// ww  w .j  av  a 2 s. c om

    StringBuilder queryString = new StringBuilder("&");
    for (String key : parameters.keySet()) {
        queryString.append(urlEncodeUTF8(key));
        queryString.append("=");
        queryString.append(urlEncodeUTF8(parameters.get(key).toString()));
        queryString.append("&");
    }

    if (queryString.charAt(queryString.length() - 1) == '&') {
        queryString = queryString.deleteCharAt(queryString.length() - 1);
    }

    return queryString.toString();
}

From source file:com.ibm.sbt.security.encryption.HMACEncryptionUtility.java

public static String generateParameterString(Map<String, String> paramsMap) {

    StringBuilder parameterString = new StringBuilder();
    for (Map.Entry<String, String> entry : paramsMap.entrySet()) {
        String key = entry.getKey();
        String value = entry.getValue();
        parameterString.append(key).append("=").append(percentEncode(value)).append("&");
    }// w  ww.java  2 s .c om
    // Now remove the last & and return the string.
    return parameterString.deleteCharAt(parameterString.length() - 1).toString();
}

From source file:com.servoy.j2db.server.ngclient.startup.resourceprovider.ComponentResourcesExporter.java

/**
 * Used in war export to create a services.properties file, which is needed to load services specs in the war.
 * @return the locations of services folders relative to the war dir.
 */// w w w  . java2s  .co m
public static String getServicesDirectoryNames() {
    StringBuilder locations = new StringBuilder();
    Enumeration<String> paths = Activator.getContext().getBundle().getEntryPaths("/war/");
    while (paths.hasMoreElements()) {
        String name = paths.nextElement().replace("war/", "");
        if (name.endsWith("services/"))
            locations.append("/" + name + ";");
    }
    if (locations.length() > 0)
        locations.deleteCharAt(locations.length() - 1);
    return locations.toString();
}

From source file:Main.java

public static String buildString(Map<String, String> params) {
    if (params == null || params.size() == 0)
        return null;

    StringBuilder sb = new StringBuilder();
    Set<Entry<String, String>> setEntry = params.entrySet();

    for (Entry<String, String> entry : setEntry) {
        sb.append(entry.getKey());/* ww w.j  a  va 2s  . c o m*/
        sb.append("=");
        try {
            sb.append(getUrlEncode(entry.getValue(), "utf-8") + "&");
        } catch (UnsupportedEncodingException e) {
            e.printStackTrace();
        }
    }

    sb.deleteCharAt(sb.length() - 1);
    return sb.toString();
}

From source file:de.blizzy.documentr.util.Util.java

/**
 * Converts a text so that it can be used as a URL component. For example, the text
 * &quot;<code>My Funny Valentine</code>&quot; will be converted to
 * &quot;<code>my-funny-valentine</code>&quot;. This method is useful to convert
 * page titles to page path components./*w  w  w .  j  a  va  2  s . c o m*/
 */
public static String simplifyForUrl(String text) {
    PagePathValidator validator = new PagePathValidator();
    StringBuilder buf = new StringBuilder();
    int len = text.length();
    for (int i = 0; i < len; i++) {
        char c = text.charAt(i);
        if (StringUtils.contains(CHARS_TO_DASH, c)) {
            buf.append("-"); //$NON-NLS-1$
        } else {
            buf.append(c);
            if (!validator.isValid(buf.toString(), null)) {
                buf.deleteCharAt(buf.length() - 1);
            }
        }
    }

    String name = buf.toString().replaceAll("--", "-") //$NON-NLS-1$ //$NON-NLS-2$
            .replaceAll("^-", StringUtils.EMPTY) //$NON-NLS-1$
            .replaceAll("-$", StringUtils.EMPTY) //$NON-NLS-1$
            .toLowerCase();
    return name;
}

From source file:io.cloudslang.content.couchbase.utils.InputsUtil.java

public static String getPayloadString(Map<String, String> payloadMap, String separator, String suffix,
        boolean deleteLastChar) {
    if (payloadMap.isEmpty()) {
        return EMPTY;
    }// w ww  .j  a  va  2  s .co  m

    StringBuilder sb = new StringBuilder();
    for (Map.Entry<String, String> entry : payloadMap.entrySet()) {
        sb.append(entry.getKey()).append(separator).append(entry.getValue()).append(suffix);
    }

    return deleteLastChar ? sb.deleteCharAt(sb.length() - 1).toString() : sb.toString();
}