// collections/AsListInference.java
// (c)2021 MindView LLC: see Copyright.txt
// We make no guarantees that this code is fit for any purpose.
// Visit http://OnJava8.com for more book information.

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

class Snow {
}

class Powder extends Snow {
}

class Light extends Powder {
}

class Heavy extends Powder {
}

class Crusty extends Snow {
}

class Slush extends Snow {
}

public class AsListInference {
    public static void main(String[] args) {
        List<Snow> snow1 = Arrays.asList(
                new Crusty(), new Slush(), new Powder());
        //- snow1.add(new Heavy()); // Exception
        //- snow1.remove(0);        // Exception

        List<Snow> snow2 = Arrays.asList(
                new Light(), new Heavy());
        //- snow2.add(new Slush()); // Exception
        //- snow2.remove(0);        // Exception

        List<Snow> snow3 = new ArrayList<>();
        Collections.addAll(snow3,
                new Light(), new Heavy(), new Powder());
        snow3.add(new Crusty());
        snow3.remove(0);

        // Hint with explicit type argument specification:
        List<Snow> snow4 = Arrays.<Snow>asList(
                new Light(), new Heavy(), new Slush());
        //- snow4.add(new Powder()); // Exception
        //- snow4.remove(0);         // Exception
    }
}