Main.java Source code

Introduction

Here is the source code for Main.java

Source

import java.util.Collections;
import java.util.Set;
import java.util.SortedSet;
import java.util.TreeSet;

public class Main {
    public static void main(String[] s) {
        SortedSet<String> set = new TreeSet<String>();

        set.add("Welcome");
        set.add("to");
        set.add("java2s.com");

        System.out.println("Initial set value: " + set);

        // create unmodifiable sorted set
        Set<String> unmodsortset = Collections.unmodifiableSortedSet(set);

        // try to modify the sorted set
        unmodsortset.add("Hello");
    }
}