* override {@code offer} as well, either providing your own implementation, or delegating to the
 * provided {@code standardOffer} method.
 *
 * <p><b>{@code default} method warning:</b> This class does <i>not</i> forward calls to {@code
 * default} methods. Instead, it inherits their default implementations. When those implementations
 * invoke methods, they invoke methods on the {@code ForwardingBlockingDeque}.
 *

app = FastAPI()
router_a = APIRouter()
router_a_a = APIRouter()
router_a_b_override = APIRouter()  # Overrides default class
router_b_override = APIRouter()  # Overrides default class
router_b_a = APIRouter()
router_b_a_c_override = APIRouter()  # Overrides default class again


@app.get("/")
def get_root():
    return {"msg": "Hello World"}

	for i, r := range pattern {
		if i > 0 && prev == escape {
			switch r {
			case percent, escape, underscore:
				s = append(s, r)
				prev = r
				if r == escape {
					prev = runeZero
				}
			default:
				return false, errMalformedEscapeSequence
			}
			continue
		}

		prev = r

		var ok bool
		switch r {
		case percent:
			if len(s) == 0 {
				hasLeadingPercent = true
				continue
			}

    /**
     * A map containing additional tag metadata as key-value pairs.
     */
    public Map<String, String> tags = new HashMap<>();

    /**
     * Default constructor for TagForm.
     */
    public TagForm() {
        // Default constructor
    }

    /** The page number for search results. */
    public Integer page = Constants.DEFAULT_ADMIN_PAGE_NUMBER;

    /**
     * Default constructor for BaseSearchBody.
     */
    public BaseSearchBody() {
        // Default constructor
    }

    /**
     * Gets the page size for search results.
     * @return The page size.
     */
    public int getPageSize() {

public class UserInfoService {

    @Resource
    private UserInfoBhv userInfoBhv;

    @Resource
    private SystemHelper systemHelper;

    /**
     * Default constructor for UserInfoService.
     */
    public UserInfoService() {
        // Default constructor
    }

    /**
     * Deletes user information records older than the specified number of days.

from fastapi import FastAPI, Query

app = FastAPI()


@app.get("/items/")
async def read_items(q: list[str] = Query(default=["foo", "bar"])):
    query_items = {"q": q}

 *   <li>notification of evicted (or otherwise removed) entries
 *   <li>accumulation of cache access statistics
 * </ul>
 *
 * <p>These features are all optional; caches can be created using all or none of them. By default,
 * cache instances created by {@code CacheBuilder} will not perform any type of eviction.
 *
 * <p>Usage example:
 *
 * {@snippet :
 * LoadingCache<Key, Graph> graphs = CacheBuilder.newBuilder()

在這種情況下（未使用 `Annotated`），我們必須用 `Query()` 取代函式中的預設值 `None`，因此需要用 `Query(default=None)` 來設定預設值；對 FastAPI 而言，這達到相同目的。

所以：

```Python
q: str | None = Query(default=None)
```

…會讓參數變為可選、預設值是 `None`，等同於：

```Python
q: str | None = None
```

但用 `Query` 的版本會明確宣告它是查詢參數。

接著，我們可以傳更多參數給 `Query`。此例中是用於字串的 `max_length` 參數：

```Python
q: str | None = Query(default=None, max_length=50)
```

import jakarta.validation.constraints.Size;

/**
 * The create form for Bad Word.
 */
public class CreateForm {

    /**
     * Creates a new CreateForm instance.
     */
    public CreateForm() {
        // Default constructor
    }

    /**
     * The CRUD mode for form processing (create, update, delete operations).
     */
    @ValidateTypeFailure
    public Integer crudMode;

    /**