DoubleStream allMatch(DoublePredicate predicate) returns whether all elements of this stream match the provided predicate. It may not evaluate the predicate on all elements if not necessary for determining the result. This is a short-circuiting terminal operation. A terminal operation is short-circuiting if, when presented with infinite input, it may terminate in finite time.
boolean allMatch(DoublePredicate predicate)
- DoublePredicate : A predicate (boolean-valued function) of one double-valued argument.
Return Value : The function returns true if either all elements of the stream match the provided predicate or the stream is empty, otherwise false.
Note : If the stream is empty then true is returned and the predicate is not evaluated.
Example 1 : allMatch() function to check whether all elements are divisible by 3.
Example 2 : allMatch() function to check whether all elements in the DoubleStream obtained after concatenating two DoubleStreams are less than 2.
Example 3 : allMatch() function to show if the stream is empty then true is returned.
Attention reader! Don’t stop learning now. Get hold of all the important Java Foundation and Collections concepts with the Fundamentals of Java and Java Collections Course at a student-friendly price and become industry ready. To complete your preparation from learning a language to DS Algo and many more, please refer Complete Interview Preparation Course.