Find Common elements in two lists from Java 8

There are two lists, the task is to print Common elements from java 8.

• First, we take two Arraylist object list1 and list2 with input parameter.
• Here list.stream() is used to enable the Stream API to process the elements within the list.
• Inside filter(list2::contains) method is used to check if the list1 element is present in the specified list2 or not. if the element is present then its return true otherwise false.
• From collect() method, we collect all the common list of integer data.
• Print the Common elements in two lists.

import java.util.Arrays;
import java.util.List;
import java.util.stream.Collectors;

public class CommonElements {
	public static void main(String[] args) {
		List<Integer> list1 = Arrays.asList(23, 45, 67, 80, 21, 98);
		List<Integer> list2 = Arrays.asList(12, 67, 43, 78, 80, 23);
		List<Integer> commonElement = list1.stream().filter(list2::contains).collect(Collectors.toList());
		System.out.println("common elements are :- " + commonElement);
	}
}

Output :-
common elements are :- [23, 67, 80]