static int findRotations ( String str ) {
  String tmp = str + str ;
  int n = str . length ( ) ;
  for ( int i = 1 ;
  i <= n ;
  i ++ ) {
    String substring = tmp . substring ( i , str . length ( ) ) ;
    if ( str == substring ) return i ;
  }
  return n ;
}

static int findRotations ( String str ) { String tmp = str + str ; int n = str . length ( ) ; for ( int i = 1 ; i <= n ; i ++ ) { String substring = tmp . substring ( i , str . length ( ) ) ; if ( str == substring ) return i ; } return n ; }
(method_declaration (modifiers) type: (integral_type) name: (identifier) parameters: (formal_parameters (formal_parameter type: (type_identifier) name: (identifier))) body: (block (local_variable_declaration type: (type_identifier) declarator: (variable_declarator name: (identifier) value: (binary_expression left: (identifier) right: (identifier)))) (local_variable_declaration type: (integral_type) declarator: (variable_declarator name: (identifier) value: (method_invocation object: (identifier) name: (identifier) arguments: (argument_list)))) (for_statement init: (local_variable_declaration type: (integral_type) declarator: (variable_declarator name: (identifier) value: (decimal_integer_literal))) condition: (binary_expression left: (identifier) right: (identifier)) update: (update_expression (identifier)) body: (block (local_variable_declaration type: (type_identifier) declarator: (variable_declarator name: (identifier) value: (method_invocation object: (identifier) name: (identifier) arguments: (argument_list (identifier) (method_invocation object: (identifier) name: (identifier) arguments: (argument_list)))))) (if_statement condition: (parenthesized_expression (binary_expression left: (identifier) right: (identifier))) consequence: (return_statement (identifier))))) (return_statement (identifier))))