Contains Common Item

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import java.util.Set; import java.util.HashSet; import java.util.Arrays; class Main { public static void main(String[] args) { String[] array1 = {"a", "b", "c", "x"}; String[] array2 = {"z", "y", "i"}; System.out.println(Arrays.toString(array1) + " has common items with " + Arrays.toString(array2) + "? " + thereAreCommonItems(array1, array2)); String[] array3 = {"a", "b", "c", "x"}; String[] array4 = {"z", "y", "x"}; System.out.println(Arrays.toString(array3) + " has common items with " + Arrays.toString(array4) + "? " + thereAreCommonItems(array3, array4)); } public static boolean thereAreCommonItems(String[] array1, String[] array2) { Set<String> set2 = new HashSet<>(Arrays.asList(array2)); for (int i = 0; i < array1.length; i++) { if (set2.contains(array1[i])) { return true; } } return false; } }
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