How do I trim or reverse a String

Java String class provides ability to trim a String.  StringBuilder  provides ability to reverse a String.

Apache Commons StringUtility class provides lot more functionality.  Following features are supported as per their documentation:

• IsEmpty/IsBlank - checks if a String contains text
• Trim/Strip - removes leading and trailing whitespace
• Equals/Compare - compares two strings null-safe
• startsWith - check if a String starts with a prefix null-safe
• endsWith - check if a String ends with a suffix null-safe
• IndexOf/LastIndexOf/Contains - null-safe index-of checks
• IndexOfAny/LastIndexOfAny/IndexOfAnyBut/LastIndexOfAnyBut - index-of any of a set of Strings
• ContainsOnly/ContainsNone/ContainsAny - does String contains only/none/any of these characters
• Substring/Left/Right/Mid - null-safe substring extractions
• SubstringBefore/SubstringAfter/SubstringBetween - substring extraction relative to other strings
• Split/Join - splits a String into an array of substrings and vice versa
• Remove/Delete - removes part of a String
• Replace/Overlay - Searches a String and replaces one String with another
• Chomp/Chop - removes the last part of a String
• AppendIfMissing - appends a suffix to the end of the String if not present
• PrependIfMissing - prepends a prefix to the start of the String if not present
• LeftPad/RightPad/Center/Repeat - pads a String
• UpperCase/LowerCase/SwapCase/Capitalize/Uncapitalize - changes the case of a String
• CountMatches - counts the number of occurrences of one String in another
• IsAlpha/IsNumeric/IsWhitespace/IsAsciiPrintable - checks the characters in a String
• DefaultString - protects against a null input String
• Rotate - rotate (circular shift) a String
• Reverse/ReverseDelimited - reverses a String
• Abbreviate - abbreviates a string using ellipsis or another given String
• Difference - compares Strings and reports on their differences
• LevenshteinDistance - the number of changes needed to change one String into another