Specification (very partial) of java.lang.String class   1) < string > .length () - > int / /length of string   ``cs1 exams are fun'' .length () = 18     2) < string > .indexOf (< string >) - > int   / /yields the leftmost occurene pos.   ``frim fram sauce'' .indefOf ( ``fr'' ) - > 0     3 a) < string > .substring (< int >) - > < String >   Returns the substring from the pos specified by the parameter   to the end of the string.   ``Monday'' .substring (3) - > ``day''     3 b) < string > .substring (< int >,  < int >) - > < String >   Returns the substring from the pos of the first parameter to the   pos one less than the second parameter.   ``fired hand'' .substring (2,  7) - > ``red_h''     4) < string > .equals (< string > - > < boolean >   Compares one string to another and yields true or false.     5) < string > .equalsIgnoreCase (< string >) - > < boolean >   Same as 4) but ignores case     6) < string > .compareTo (< string >) - > < int >   Returns -   0 - if the two strings are equal   Something negative if the receiving string is alphabetically less than the parameter   Something positive if the receiving string is alphabetically greater than the paramter   Example:   ``cat'' .compareTo ( ``bat'' ) - > positive value returned   ``bat'' .compareTo ( ``bats'' ) - > negative value returned