As noted in the preceding table, the asPredicate() method creates a predicate that can be used to match an input string. Let's look at an example code listing to understand this method better:
package example.regex; import java.util.List; import java.util.stream.*; import java.util.regex.*; public class AsPredicateExample { public static void main(String[] args) { final String[] monthsArr = {"10", "0", "05", "09", "12", "15", "00", "-1", "100"}; final Pattern validMonthPattern = Pattern.compile("^(?:0?[1-9]|1[00-2])$"); List<String> filteredMonths = Stream.of(monthsArr) .filter(validMonthPattern.asPredicate()) .collect(Collectors.toList()); System.out.println(filteredMonths); ...
