// fill in the rest of the array with arbitrary instances
        for (int i = 2; i < params.length; i++) {
          params[i] = ArbitraryInstances.get(sig.get(i));
        }
      }
    }
    return params;
  }

  private static final ImmutableList<Class<?>> POSSIBLE_PARAM_TYPES =
      ImmutableList.of(char.class, int.class, long.class, Object.class);

  /**

     *
     * @return the preload size in bytes
     */
    public int getPreloadSizeForCharset() {
        return preloadSizeForCharset;
    }

    /**
     * Sets the preload size for charset detection.
     *
     * @param preloadSizeForCharset the preload size in bytes to set
     */
    public void setPreloadSizeForCharset(final int preloadSizeForCharset) {
        this.preloadSizeForCharset = preloadSizeForCharset;

そして当然、あるパラメータを必須に、別のパラメータにデフォルト値を設定し、また別のパラメータをオプショナルにできます:

{* ../../docs_src/query_params/tutorial006.py hl[10] *}

この場合、3つのクエリパラメータがあります。:

* `needy`、必須の `str` 。
* `skip`、デフォルト値を `0` とする `int` 。
* `limit`、オプショナルな `int` 。

/// tip | 豆知識

[パスパラメータ](path-params.md#_8){.internal-link target=_blank}と同様に `Enum` を使用できます。

    @Override
    public Entry<Country, Currency>[] createArray(int length) {
      return (Entry<Country, Currency>[]) new Entry<?, ?>[length];
    }

    @Override
    public Iterable<Entry<Country, Currency>> order(List<Entry<Country, Currency>> insertionOrder) {
      return orderEntriesByKey(insertionOrder);
    }

    @Override
    public Country[] createKeyArray(int length) {
      return new Country[length];
    }

func (li *localLockInstance) GetLock(ctx context.Context, timeout *dynamicTimeout) (_ LockContext, timedOutErr error) {
	lockSource := getSource(2)
	start := UTCNow()
	const readLock = false
	success := make([]int, len(li.paths))
	for i, path := range li.paths {
		if !li.ns.lock(ctx, li.volume, path, lockSource, li.opsID, readLock, timeout.Timeout()) {
			timeout.LogFailure()
			for si, sint := range success {
				if sint == 1 {

	// A percentage value that indicates the size of the policy in packed form.
	// The service rejects any policy with a packed size greater than 100 percent,
	// which means the policy exceeded the allowed space.
	PackedPolicySize int `xml:",omitempty"`
}

// AssumeRoleWithWebIdentityResponse contains the result of successful AssumeRoleWithWebIdentity request.
type AssumeRoleWithWebIdentityResponse struct {

 * javadoc for details.
 */
@GwtCompatible
abstract class CommonPattern {
  public abstract CommonMatcher matcher(CharSequence t);

  public abstract String pattern();

  public abstract int flags();

  // Re-declare this as abstract to force subclasses to override.
  @Override
  public abstract String toString();

  public static CommonPattern compile(String pattern) {

public interface OneSizeTestContainerGenerator<T, E extends @Nullable Object>
    extends TestSubjectGenerator<T>, TestContainerGenerator<T, E> {
  TestContainerGenerator<T, E> getInnerGenerator();

  Collection<E> getSampleElements(int howMany);

  CollectionSize getCollectionSize();

 * will resolve the type parameters of the method or constructor in the context of the owner type,
 * which may be a subtype of the declaring class. For example:
 *
 * {@snippet :
 * Method getMethod = List.class.getMethod("get", int.class);
 * Invokable<List<String>, ?> invokable = new TypeToken<List<String>>() {}.method(getMethod);
 * assertEquals(TypeToken.of(String.class), invokable.getReturnType()); // Not Object.class!

        assertEquals(0, response.getItems().size());
    }

    @Test
    public void test_numMatchesWordsSize() throws Exception {
        List<String> words = new ArrayList<>();
        for (int i = 0; i < 5; i++) {
            words.add("word" + i);
        }

        SuggestResponse response = new SuggestResponse("test-index", 100, words, 100, new ArrayList<>());