Given a list of numbers ( fixed list) Now given any other list, how can you efficiently find out if

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Given a list of numbers ( fixed list) Now given any other list, how can you efficiently find out if

Given a list of numbers ( fixed list) Now given any other list, how can you efficiently find out if

Given a list of numbers ( fixed list) Now given any other list, how can you efficiently find out if there is any element in the second list that is an element of the first list (fixed list).

import java.util.ArrayList; import java.util.List;public class Duplicate { public static void main(String args[]) { List list1 = new ArrayList(); List list2 = new ArrayList(); for (int i = 0; i < 5; i++) list1.add((int) (Math.random() * 10)); for (int i = 0; i < 10; i++) list2.add((int) (Math.random() * 10)); for (int i = 0; i < list1.size(); i++) { System.out.print(list1.get(i) + " "); } System.out.println(); for (int j = 0; j < list2.size(); j++) { System.out.print(list2.get(j) + " "); } System.out.println(); for (int i = 0; i < list2.size(); i++) { for (int j = 0; j < list1.size(); j++) { if (list1.get(j) == list2.get(i)) { System.out.print(list2.get(i) + " "); } } } }}

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