Constructor Detail

• StringUtils

  private StringUtils()

  Constructor

Method Detail

• concat

  public static java.lang.String concat(java.util.Collection l,
                                        java.lang.String delimiter)

  Concat the collection l to string with delimenter

  Parameters:

  l - the collection

  delimiter - the delimiter

  Returns:

  the result string

• concat

  public static java.lang.String concat(java.lang.Object[] objects,
                                        java.lang.String delimiter)

  Concant the object in the array (using objects.toString()), delimited by delimiter

  Parameters:

  objects - the objects

  delimiter - the delimiter

  Returns:

  a string

• substringAfter

  public static java.lang.String substringAfter(java.lang.String str,
                                                java.lang.String pattern)

  Return the substring after the first occurrance of pattern

  Parameters:

  str - the str

  pattern - the pattern

  Returns:

  the substring of pattern can be matched in str, or null

• substringAfterLast

  public static java.lang.String substringAfterLast(java.lang.String str,
                                                    java.lang.String pattern)

  Return substring of str after the the last occurrance of pattern

  Parameters:

  str - the str

  pattern - the pattern

  Returns:

  the substring if pattern can be matched in the str, or null

• substringBeforeLast

  public static java.lang.String substringBeforeLast(java.lang.String str,
                                                     java.lang.String pattern)

  Return substring of str before the last occurrance of str

  Parameters:

  str - the str

  pattern - the pattern

  Returns:

  the substring if pattern can be matched, or null

• isNullOrEmpty

  public static boolean isNullOrEmpty(java.lang.String str)

  Whether the string is empty

  Parameters:

  str - whether is null or zero length (after trim)

  Returns:

  true if null of zero length after trim

• isNullOrEmpty

  public static boolean isNullOrEmpty(java.lang.Object strObject)

  Whether the string is empty

  Parameters:

  str - whether is null or zero length (after trim)

  Returns:

  true if null of zero length after trim