Main.java Source code

Introduction

Here is the source code for Main.java

Source

import java.util.ArrayList;
import java.util.Arrays;
import java.util.Collections;
import java.util.HashMap;
import java.util.HashSet;
import java.util.List;
import java.util.Map;
import java.util.Set;

public class Main {
    public static void main(String[] argv) throws Exception {

        Map map = new HashMap();
        map = Collections.unmodifiableMap(map);

        try {
            map.put("key", "new value");
        } catch (UnsupportedOperationException e) {
            System.out.println(e.getMessage());
        }

    }
}