Collections.unmodifiableList(List) in Java

Collections.unmodifiableList(List): This method is available in java.util.Collections class of Java.

Syntax:

<E> List<E> java.util.Collections.unmodifiableList(List<? extends E> list)

This method takes one argument. This method returns an unmodifiable view of the specified list.

Parameters: One parameter is required for this method.

list: the list for which an unmodifiable view is to be returned.

Returns: an unmodifiable view of the specified list.

Exceptions: NA

Approach

Java

import java.util.ArrayList;
import java.util.Collections;
import java.util.List;

public class CollectionsunmodifiableList {
    public static void main(String[] args) {

        List<String> list = new ArrayList<String>();

        list.add("Hello");
        list.add("Java");
        list.add("C++");

        System.out.println(Collections.unmodifiableList(list));

    }
}

Output:

[Hello, Java, C++]