Stream allMatch() in Java with examples
Stream allMatch(Predicate 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(Predicate<? super T> predicate) Where, T is the type of the input to the predicate and 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. Once any function is done using the stream it can’t be used again until it is re-initialize.
Example 1 : allMatch() function to check whether all elements are divisible by 3.
Example 2 : allMatch() function to check whether strings have length greater than 2.
Example 3 : allMatch() function to check whether all strings have UpperCase character at 1st index.
Example 4 : Multiple function done using same stream
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