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Java Standard Edition (SE)

DoublePredicate


compact1, compact2, compact3
java.util.function

Interface DoublePredicate

  • 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 double-valued argument. This is the double-consuming primitive type specialization of Predicate.

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

    Since:
    1.8
    See Also:
    Predicate
    • Method Detail

      • 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

        default DoublePredicate and(DoublePredicate other)
        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

        default DoublePredicate negate()
        Returns a predicate that represents the logical negation of this predicate.
        Returns:
        a predicate that represents the logical negation of this predicate
      • or

        default DoublePredicate or(DoublePredicate other)
        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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