Supertype: 
Object
		
		
		
Table 4. Operations
| Return type | Name | Description | 
|---|---|---|
| String | toLowerCase() | Converts all of the characters in this String to lower case using the rules of the default locale (from Java) | 
| String | +(Object) | concatenates two strings | 
| List | toCharList() | splits this String into a List[String] containing Strings of length 1 | 
| String | toFirstUpper() | Converts the first character in this String to upper case using the rules of the default locale (from Java) | 
| String | subString(Integer,Integer) | Returns a new string that is a substring of this string. | 
| String | trim() | Returns a copy of the string, with leading and trailing whitespace omitted. (from Java 1.4) | 
| String | toFirstLower() | Converts the first character in this String to lower case using the rules of the default locale (from Java) | 
| String | toUpperCase() | Converts all of the characters in this String to upper case using the rules of the default locale (from Java) | 
| List | split(String) | Splits this string around matches of the given regular expression (from Java 1.4) | 
| Boolean | startsWith(String) | Tests if this string starts with the specified prefix. | 
| Boolean | matches(String) | Tells whether or not this string matches the given regular expression. (from Java 1.4) | 
| Integer | asInteger() | Returns an Integer object holding the value of the specified String (from Java 1.5) | 
| Boolean | contains(String) | Tests if this string contains substring. | 
| Boolean | endsWith(String) | Tests if this string ends with the specified prefix. | 
| String | replaceFirst(String,String) | Replaces the first substring of this string that matches the given regular expression with the given replacement. | 
| String | replaceAll(String,String) | Replaces each substring of this string that matches the given regular expression with the given replacement. |