static int isVowel ( char ch ) {
  ch = Character . toUpperCase ( ch ) ;
  if ( ch == 'A' || ch == 'E' || ch == 'I' || ch == 'O' || ch == 'U' ) return 1 ;
  else return 0 ;
}

static int isVowel ( char ch ) { ch = Character . toUpperCase ( ch ) ; if ( ch == ' A ' || ch == ' E ' || ch == ' I ' || ch == ' O ' || ch == ' U ' ) return 1 ; else return 0 ; }
(method_declaration (modifiers) type: (integral_type) name: (identifier) parameters: (formal_parameters (formal_parameter type: (integral_type) name: (identifier))) body: (block (expression_statement (assignment_expression left: (identifier) right: (method_invocation object: (identifier) name: (identifier) arguments: (argument_list (identifier))))) (if_statement condition: (parenthesized_expression (binary_expression left: (binary_expression left: (binary_expression left: (binary_expression left: (binary_expression left: (identifier) right: (character_literal)) right: (binary_expression left: (identifier) right: (character_literal))) right: (binary_expression left: (identifier) right: (character_literal))) right: (binary_expression left: (identifier) right: (character_literal))) right: (binary_expression left: (identifier) right: (character_literal)))) consequence: (return_statement (decimal_integer_literal)) alternative: (return_statement (decimal_integer_literal)))))