{

public static void main(String[] args)

{

//Smallest element in the stream with lambda expression

List<Integer> list1 = Arrays.asList(2, 4, 1, 3, 7, 5, 9, 6, 8);

Optional<Integer> minNumber1 = list1.stream().min((i, j) -> i.compareTo(j));

System.out.println(minNumber1.get());

//Smallest element in the stream with Comparator

List<Integer> list2 = Arrays.asList(2, 4, 1, 3, 7, 5, 9, 6, 8);

Comparator<Integer> minComparator = new Comparator<Integer>()

{

@Override

public int compare(Integer n1, Integer n2) {

return n1.compareTo(n2);

}

};

Optional<Integer> minNumber2 = list2.stream().min(minComparator);

System.out.println(minNumber2.get());

//smallest string of Student class stream

Stream<Student> stream = Stream.of(new Student(1,"Ram"),new Student(2,"Arjun"),new Student(3,"Kavi"),new Student(4,"Sanju"),new Student(5,"Ajay"));

List<String> list = new ArrayList<>();

stream.forEach(e->list.add(e.getName()));

Comparator<String> comparator = new Comparator<String>()

{

@Override

public int compare(String s1, String s2) {

return s1.compareTo(s2);

}

};

Optional<String> minString = list.stream().min(comparator);

System.out.println(minString.get());

}

}