Sunday, 22 May 2016

How to check an array is subset of another array?

Check an array is subset of another array

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

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 !");


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