static int term ( int n ) {
  int x = ( ( ( 1 ) + ( int ) Math . sqrt ( 1 + ( 8 * n ) ) ) / 2 ) ;
  return x ;
}

static int term ( int n ) { int x = ( ( ( 1 ) + ( int ) Math . sqrt ( 1 + ( 8 * n ) ) ) / 2 ) ; return x ; }
(method_declaration (modifiers) type: (integral_type) name: (identifier) parameters: (formal_parameters (formal_parameter type: (integral_type) name: (identifier))) body: (block (local_variable_declaration type: (integral_type) declarator: (variable_declarator name: (identifier) value: (parenthesized_expression (binary_expression left: (parenthesized_expression (binary_expression left: (parenthesized_expression (decimal_integer_literal)) right: (cast_expression type: (integral_type) value: (method_invocation object: (identifier) name: (identifier) arguments: (argument_list (binary_expression left: (decimal_integer_literal) right: (parenthesized_expression (binary_expression left: (decimal_integer_literal) right: (identifier))))))))) right: (decimal_integer_literal))))) (return_statement (identifier))))