LongStream anyMatch(LongPredicate predicate) returns whether any 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.
Syntax :
boolean anyMatch(LongPredicate predicate)
Parameters :
- LongPredicate : A predicate (boolean-valued function) of one long-valued argument.
Return Value : The function returns true if any elements of the stream match the provided predicate, otherwise false.
Note : If the stream is empty then false is returned and the predicate is not evaluated.
Example 1 : anyMatch() function to check whether any element in list satisfy given condition.
// Java code for LongStream anyMatch// (LongPredicate predicate) to check whether// any element of this stream match// the provided predicate.import java.util.*;import java.util.stream.LongStream;  class GFG {      // Driver code    public static void main(String[] args)    {        // Creating an LongStream        LongStream stream = LongStream.of(1L, 2L, 3L, 4L, 5L, 6L);          // LongStream anyMatch(LongPredicate predicate)        boolean answer = stream.anyMatch(num -> (num - 5) > 0);          // Displaying the result        System.out.println(answer);    }} |
Output :
true
Example 2 : anyMatch() function to check whether square root of any element in stream is greater than 8.
// Java code for LongStream anyMatch// (LongPredicate predicate) to check whether// any element of this stream match// the provided predicate.import java.util.*;import java.util.stream.LongStream;  class GFG {      // Driver code    public static void main(String[] args)    {        // Creating an LongStream        LongStream stream = LongStream.of(10L, 20L, 30L, 40L, 50L);          // LongStream anyMatch(LongPredicate predicate)        boolean answer = stream.anyMatch(num -> Math.sqrt(num) > 8);          // Displaying the result        System.out.println(answer);    }} |
Output :
false
Example 3 : anyMatch() function to show that if the stream is empty then false is returned.
// Java code for LongStream anyMatch// (LongPredicate predicate) to check whether// any element of this stream match// the provided predicate.import java.util.*;import java.util.stream.LongStream;  class GFG {      // Driver code    public static void main(String[] args)    {        // Creating an empty LongStream        LongStream stream = LongStream.empty();          // LongStream anyMatch(LongPredicate predicate)        boolean answer = stream.anyMatch(num -> true);          // Displaying the result        System.out.println(answer);    }} |
Output :
false
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