DoublePredicate

  • DoublePredicate is a functional interface representing a boolean-valued function that takes a single double argument.

  • It provides methods for testing the predicate against a double value (test), as well as combining predicates using logical AND (and), OR (or), and negation (negate).

  • These methods allow for the creation of complex logical conditions involving double values.

  • It's a specialization of the Predicate interface, focused on the primitive type double.
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).

See Also

Public Method Summary

DoublePredicate
and(DoublePredicate other)
Returns a composed predicate that represents a short-circuiting logical AND of this predicate and another.
DoublePredicate
negate()
Returns a predicate that represents the logical negation of this predicate.
DoublePredicate
or(DoublePredicate other)
Returns a composed predicate that represents a short-circuiting logical OR of this predicate and another.
abstract boolean
test(double value)
Evaluates this predicate on the given argument.

Public Methods

public 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

public DoublePredicate negate ()

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

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

public 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

public abstract 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