static int heptagonalNumber ( int n ) {
  return ( ( 5 * n * n ) - ( 3 * n ) ) / 2 ;
}

static int heptagonalNumber ( int n ) { return ( ( 5 * n * n ) - ( 3 * n ) ) / 2 ; }
(method_declaration (modifiers) type: (integral_type) name: (identifier) parameters: (formal_parameters (formal_parameter type: (integral_type) name: (identifier))) body: (block (return_statement (binary_expression left: (parenthesized_expression (binary_expression left: (parenthesized_expression (binary_expression left: (binary_expression left: (decimal_integer_literal) right: (identifier)) right: (identifier))) right: (parenthesized_expression (binary_expression left: (decimal_integer_literal) right: (identifier))))) right: (decimal_integer_literal)))))