Java Utililty Methods String Format

List of utility methods to do String Format

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Description

The list of methods to do String Format are organized into topic(s).

Method

StringgetFormatted(String messageKey)
get Formatted 
return RESOURCE_BUNDLE.getString(messageKey);
StringgetFormattedMessage(final String pattern, final Object[] arguments)
get Formatted Message 
String formattedMessage = "";
final MessageFormat formatter = new MessageFormat(pattern);
formattedMessage = formatter.format(arguments);
return formattedMessage;
StringgetFormattedString(ResourceBundle b, String key, Object... params)
Encapsulates the logic to format a string based on the key in the resource bundle 
return MessageFormat.format(b.getString(key), params);
StringgetFormattedString(String key, Object arg)
get Formatted String 
return MessageFormat.format(getString(key), new Object[] { arg });
StringgetFormattedString(String p_bundleName, String p_key, Locale p_locale, Object[] p_arguments)
Retrieves a resource bundle string with substituted argument values using the default locale in the JVM 
Locale locale = p_locale;
if (p_locale == null) {
    p_locale = Locale.getDefault();
String messagePattern = null;
try {
    ResourceBundle bundle = ResourceBundle.getBundle(p_bundleName, locale);
    messagePattern = bundle.getString(p_key);
...
StringgetFormatValue(String value, Object[] args)
get Format Value 
if (value != null) {
    value = MessageFormat.format(value, args);
return value;
ImageWritergetImageWriter(ImageTypeSpecifier imageType, String imageFormatName)
Gets an image writer suitable to be used for the given image type and image format. 
return getImageWriter(imageType, imageFormatName, null);
ImageWritergetImageWriter(String formatName)
get Image Writer 
Iterator<ImageWriter> it = ImageIO.getImageWritersByFormatName(formatName);
if (it.hasNext()) {
    return it.next();
return null;
intgetRequriedArgumentCount(MessageFormat msgFormat)
Returns the number of required arguments for the given MessageFormat. 
Format[] formats = msgFormat.getFormatsByArgumentIndex();
int required = formats.length;
MessageFormat mf = new MessageFormat("");
for (Format fmt : formats) {
    if (fmt instanceof java.text.ChoiceFormat) {
        mf.applyPattern(((ChoiceFormat) fmt).toPattern());
        required = Math.max(required, getRequriedArgumentCount(mf));
return required;
StringgetStylingHyphenFormat(String cssProperties)
Converts CSS properties to hyphen format. 
if (cssProperties == null) {
    return null;
StringBuilder returnStr = new StringBuilder();
String[] properties = cssProperties.split(";"); 
if (properties == null || properties.length == 0) {
    return cssProperties;
for (int j = 0; j < properties.length; j++) {
    if (j != 0) {
        returnStr.append(";"); 
    String[] pair = properties[j].split(":");
    if (pair == null || pair.length <= 1) {
        returnStr.append(properties[j]).append(";");
        continue;
    List<String> words = new ArrayList<String>(3);
    int begin = 0;
    int i = 0;
    for (; i < pair[0].length(); i++) {
        if (Character.isUpperCase(pair[0].charAt(i)) && i != 0) {
            words.add(pair[0].substring(begin, i).toLowerCase());
            begin = i;
    if (begin != i) {
        words.add(pair[0].substring(begin, i).toLowerCase());
    StringBuilder sb = new StringBuilder();
    i = 0;
    for (i = 0; i < words.size(); i++) {
        if (i != 0) {
            sb.append("-");
        sb.append(words.get(i));
    returnStr.append(sb);
    for (i = 1; i < pair.length; i++) {
        returnStr.append(":").append(pair[i]);
return returnStr.toString();