How to check an array is subset of another array?

Check an array is subset of another array

Scenario#

Check that all element of first array present in second array.

Solution#

Apply Brute force algorithm to check the occurrence of each element of  first array into second array.

Solution# Java method

First, convert arrays into list using arrayList().

Use containsAll() method to check.

Integer[] array1 = {1,2,3};

Integer[] array2 = { 2,3 };

List list1 = Arrays.asList(array1);

List list2 = Arrays.asList(array2);

if(list1.containsAll(list2)) {

      System.out.println("Yo Yo ! They are there !");

}