Main.java Source code

Introduction

Here is the source code for Main.java

Source

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

public class Main {
    public static void main(String[] args) {
        // create array list
        List<Character> list = new ArrayList<Character>();

        // populate the list
        list.add('X');
        list.add('Y');

        System.out.println("Initial list: " + list);

        Collection<Character> immutablelist = Collections.unmodifiableCollection(list);

        // try to modify the list
        immutablelist.add('Z');
    }
}