static boolean checkPerfectcube ( int n ) {
  int d = ( int ) Math . cbrt ( n ) ;
  if ( d * d * d == n ) return true ;
  return false ;
}

static boolean checkPerfectcube ( int n ) { int d = ( int ) Math . cbrt ( n ) ; if ( d * d * d == n ) return true ; return false ; }
(method_declaration (modifiers) type: (boolean_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: (cast_expression type: (integral_type) value: (method_invocation object: (identifier) name: (identifier) arguments: (argument_list (identifier)))))) (if_statement condition: (parenthesized_expression (binary_expression left: (binary_expression left: (binary_expression left: (identifier) right: (identifier)) right: (identifier)) right: (identifier))) consequence: (return_statement (true))) (return_statement (false))))