/**
   * The keys of the entries in the map, in the range of [0, size()). The keys in [size(),
   * keys.length) are all {@code null}.
   */
  @VisibleForTesting transient @Nullable Object @Nullable [] keys;

  /**
   * The values of the entries in the map, in the range of [0, size()). The values in [size(),
   * values.length) are all {@code null}.
   */

@GwtCompatible
public final class Collections2 {
  private Collections2() {}

  /**
   * Returns the elements of {@code unfiltered} that satisfy a predicate. The returned collection is
   * a live view of {@code unfiltered}; changes to one affect the other.
   *
   * <p>The resulting collection's iterator does not support {@code remove()}, but all other
   * collection methods are supported. When given an element that doesn't satisfy the predicate, the

background-color: $form-range-track-bg;\n    border-color: transparent;\n    @include border-radius($form-range-track-border-radius);\n    @include box-shadow($form-range-track-box-shadow);\n  }\n\n  &::-moz-range-thumb {\n    width: $form-range-thumb-width;\n    height: $form-range-thumb-height;\n    @include gradient-bg($form-range-thumb-bg);\n    border: $form-range-thumb-border;\n    @include border-radius($form-range-thumb-border-radius);\n    @include box-shadow($form-range-thumb-box-shadow);\n...

A **virtual environment** is a directory with some files in it.

///

/// info

This page will teach you how to use **virtual environments** and how they work.

If you are ready to adopt a **tool that manages everything** for you (including installing Python), try [uv](https://github.com/astral-sh/uv).

///

## Create a Project { #create-a-project }

First, create a directory for your project.

constraints.NotBlank.message = {item} mag niet leeg zijn.
constraints.NotEmpty.message = {item} mag niet leeg zijn.
constraints.ParametersScriptAssert.message = De scriptuitdrukking "{script}" is niet waar.
constraints.Range.message = {item} moet tussen {min} en {max} liggen.
constraints.SafeHtml.message = {item} bevat gevaarlijke HTML-inhoud.
constraints.ScriptAssert.message = De scriptuitdrukking "{script}" is niet waar.

constraints.NotBlank.message = {item} обязательно.
constraints.NotEmpty.message = {item} обязательно.
constraints.ParametersScriptAssert.message = Скриптовое выражение "{script}" не является истинным.
constraints.Range.message = {item} должно быть в диапазоне от {min} до {max}.
constraints.SafeHtml.message = {item} содержит небезопасный HTML-контент.
constraints.ScriptAssert.message = Скриптовое выражение "{script}" не является истинным.

}

// LitValue represents a literal value parsed from the sql
type LitValue struct {
	Float   *float64       `parser:"(  @Float"`
	Int     *float64       `parser:" | @Int"` // To avoid value out of range, use float64 instead
	String  *LiteralString `parser:" | @LitString"`
	Boolean *Boolean       `parser:" | @(\"TRUE\" | \"FALSE\")"`
	Null    bool           `parser:" | @\"NULL\""`

////

## 代码片段中的引号 { #quotes-in-code-snippets }

//// tab | 测试

`pip install "foo[bar]"`

代码片段中的字符串字面量示例：`"this"`，`'that'`。

一个较难的字符串字面量示例：`f"I like {'oranges' if orange else "apples"}"`

硬核：`Yesterday, my friend wrote: "If you spell incorrectly correctly, you have spelled it incorrectly". To which I answered: "Correct, but 'incorrectly' is incorrectly not '"incorrectly"'"`

////

 *       return endOfData();
 *     }
 *   };
 * }
 * }
 *
 * <p>This class supports iterators that include null elements.
 *
 * @author Kevin Bourrillion
 * @since 2.0
 */
// When making changes to this class, please also update the copy at
// com.google.common.base.AbstractIterator
@GwtCompatible
public abstract class AbstractIterator<T extends @Nullable Object> extends UnmodifiableIterator<T> {

        passwordChars[0] = 'X';
        String retrievedPassword2 = authenticator.getPassword();
        assertEquals("charArrayPassword", retrievedPassword2, "Stored password should not be affected by external changes");
    }

    @Test
    public void testNullPasswordHandling() {
        authenticator = new NtlmPasswordAuthenticator("DOMAIN", "username", (String) null);