Imperative style example of ifPresent

IfPresentOrElseExample.java

public class IfPresentOrElseExample {
    
    public static void main(String[] args) {
        
        List<Integer> numbers = Arrays.asList(10, 20, 30, 40, 50, 60, 70, 80, 90);
        
        Optional<Integer> first = numbers.stream().filter(a -> a > 500).findFirst();
        
        if (first.isPresent()) {
            System.out.println(first.get());
        } else {
            System.out.println("Value not found");
        }
    }
}