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Showing content from http://docs.oracle.com/en/java/javase/15/docs/api/java.base/java/util/function/DoublePredicate.html below:

DoublePredicate (Java SE 15 & JDK 15)

Functional Interface:

This is a functional interface and can therefore be used as the assignment target for a lambda expression or method reference.

@FunctionalInterface
public interface DoublePredicate

Represents a predicate (boolean-valued function) of one

-valued argument. This is the

-consuming primitive type specialization of

.

This is a functional interface whose functional method is test(double).

Since:

1.8

See Also:

Predicate

• Method Summary Modifier and Type Method Description default DoublePredicate and​(DoublePredicate other)

  Returns a composed predicate that represents a short-circuiting logical AND of this predicate and another.

  default DoublePredicate negate()

  Returns a predicate that represents the logical negation of this predicate.

  default DoublePredicate or​(DoublePredicate other)

  Returns a composed predicate that represents a short-circuiting logical OR of this predicate and another.

  boolean test​(double value)

  Evaluates this predicate on the given argument.

• Method Details
  • test

    boolean test​(double value)

    Evaluates this predicate on the given argument.

    Parameters:

    value - the input argument

    Returns:

    true if the input argument matches the predicate, otherwise false

  • and

    Returns a composed predicate that represents a short-circuiting logical AND of this predicate and another. When evaluating the composed predicate, if this predicate is

    false

    , then the

    other

    predicate is not evaluated.

    Any exceptions thrown during evaluation of either predicate are relayed to the caller; if evaluation of this predicate throws an exception, the other predicate will not be evaluated.

    Parameters:

    other - a predicate that will be logically-ANDed with this predicate

    Returns:

    a composed predicate that represents the short-circuiting logical AND of this predicate and the other predicate

    Throws:

    NullPointerException - if other is null

  • negate

    Returns a predicate that represents the logical negation of this predicate.

    Returns:

    a predicate that represents the logical negation of this predicate

  • or

    Returns a composed predicate that represents a short-circuiting logical OR of this predicate and another. When evaluating the composed predicate, if this predicate is

    true

    , then the

    other

    predicate is not evaluated.

    Any exceptions thrown during evaluation of either predicate are relayed to the caller; if evaluation of this predicate throws an exception, the other predicate will not be evaluated.

    Parameters:

    other - a predicate that will be logically-ORed with this predicate

    Returns:

    a composed predicate that represents the short-circuiting logical OR of this predicate and the other predicate

    Throws:

    NullPointerException - if other is null

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