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import java.util.*; public class Main { public static void main(String[] args) { List<String> originalList = new ArrayList<>(Arrays.asList("A", "B", "C")); List<String> unmodifiableList = Collections.unmodifiableList(originalList); System.out.println("Before Modification:"); System.out.println("Original List: " + originalList); System.out.println("Unmodifiable List: " + unmodifiableList); // Modifying the original list originalList.set(1, "X"); originalList.add("D"); System.out.println("\nAfter Modification:"); System.out.println("Original List: " + originalList); System.out.println("Unmodifiable List: " + unmodifiableList); } }
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