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import java.util.*; public class CollectionsSingletonListExample1 { public static void main(String[] args) { List
numList = Collections.singletonList(10); System.out.println("Number List elements: " + numList); //numList.add(20); // throws UnsupportedOperationException List
strList = Collections.singletonList("Hello India"); System.out.println("String List elements: " + strList); } }
Output