zhenyuan0502

Beginning C# Object-Oriented Programming

LEARN TO DESIGN AND DEVELOP MODERN APPLICATIONS IN C#

Dan Clark

zhenyuan0502

# Copyright 2023 Gordon D. Thompson, [email protected]
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
#     http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,

zhenyuan0502

    public static class SealMethod
    {
        public static void MainFunc()
        {
            MiddleClass a = new MiddleClass();
            a.SomeWeirdFunction();

            Bottom b = new Bottom();
            b.SomeWeirdFunction();
        }

zhenyuan0502

class AccountManager
    {
        private static AccountManager mInstance;
        public static FirebaseAuthProvider mAuthProvider = new FirebaseAuthProvider(new FirebaseConfig("firebase_api_key"));
        public FirebaseAuthLink mAuthLink;
        public static bool IsSignOut = false;

        public static AccountManager Instance()
        {
            if (mInstance == null)