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import java.util.ArrayList;

import java.util.Arrays;

import java.util.List;

public class ArraysAsListExample {

public static void main(String[] args) {

// Arrays.asList() creates a fixed-size List

List<String> names = Arrays.asList("Ram", "Shyam", "Hari");

System.out.println("Before set(): " + names);

// Changing an existing element is allowed

names.set(0, "Sita");

System.out.println("After set(): " + names);

// Adding a new element is NOT allowed

try {

names.add("Gita");

} catch (UnsupportedOperationException e) {

System.out.println("add() failed: " + e);

}

// Use ArrayList when you need a resizable List

List<String> resizableNames = new ArrayList<>(

Arrays.asList("Ram", "Shyam", "Hari"));

resizableNames.add("Gita");

System.out.println("ArrayList: " + resizableNames);

}