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import java.util.*; public class CollectionsUnmodifiableCollectionExample1 { public static void main(String[] args) { Collection<String> c = new ArrayList<>(); Collections.addAll(c, "Google", "Mozila FireFox", "Yahoo"); Collection<String> c2 = Collections.unmodifiableCollection(c); System.out.println("Unmodifiable Collection: " + c2); c.add("Safari"); System.out.println("Unmodifiable Collection after adding element to the original one:"); System.out.println(c2); } }
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