static int compareStrings ( String str1 , String str2 ) {
  int i = 0 ;
  while ( i < str1 . length ( ) - 1 && str1 . charAt ( i ) == str2 . charAt ( i ) ) i ++ ;
  if ( str1 . charAt ( i ) > str2 . charAt ( i ) ) return - 1 ;
  if ( str1 . charAt ( i ) < str2 . charAt ( i ) ) return 1 ;
  else return 0 ;
}

static int compareStrings ( String str1 , String str2 ) { int i = 0 ; while ( i < str1 . length ( ) - 1 && str1 . charAt ( i ) == str2 . charAt ( i ) ) i ++ ; if ( str1 . charAt ( i ) > str2 . charAt ( i ) ) return - 1 ; if ( str1 . charAt ( i ) < str2 . charAt ( i ) ) return 1 ; else return 0 ; }
(method_declaration (modifiers) type: (integral_type) name: (identifier) parameters: (formal_parameters (formal_parameter type: (type_identifier) name: (identifier)) (formal_parameter type: (type_identifier) name: (identifier))) body: (block (local_variable_declaration type: (integral_type) declarator: (variable_declarator name: (identifier) value: (decimal_integer_literal))) (while_statement condition: (parenthesized_expression (binary_expression left: (binary_expression left: (identifier) right: (binary_expression left: (method_invocation object: (identifier) name: (identifier) arguments: (argument_list)) right: (decimal_integer_literal))) right: (binary_expression left: (method_invocation object: (identifier) name: (identifier) arguments: (argument_list (identifier))) right: (method_invocation object: (identifier) name: (identifier) arguments: (argument_list (identifier)))))) body: (expression_statement (update_expression (identifier)))) (if_statement condition: (parenthesized_expression (binary_expression left: (method_invocation object: (identifier) name: (identifier) arguments: (argument_list (identifier))) right: (method_invocation object: (identifier) name: (identifier) arguments: (argument_list (identifier))))) consequence: (return_statement (unary_expression operand: (decimal_integer_literal)))) (if_statement condition: (parenthesized_expression (binary_expression left: (method_invocation object: (identifier) name: (identifier) arguments: (argument_list (identifier))) right: (method_invocation object: (identifier) name: (identifier) arguments: (argument_list (identifier))))) consequence: (return_statement (decimal_integer_literal)) alternative: (return_statement (decimal_integer_literal)))))