Chibuikekenneth

var schoolInstance = new School();
var oxford = new OxfordUniversity(); 

//Inject dependency as method parameter
schoolInstance.AttendClass("Kenneth", oxford);

Chibuikekenneth

public class School
{
    public string AttendClass(string student, ISchool school)
    {
        return school.Learn(student);
    }
}

Chibuikekenneth

var schoolInstance = new School();
schoolInstance.AttendClass("Anthony");

var oxford = new OxfordUniversity(); 

//Injecting the dependency via a property, which is the School Property
schoolInstance.school = oxford;
schoolInstance.AttendClass("Kenneth");

Chibuikekenneth

public class School
{
    private ISchool _school;

    public ISchool school
    {
        get
        {
            if (_school == null) school = new HavardUniversity();
            return _school;

Chibuikekenneth

School havard = new School(new HavardUniversity());
School oxford = new School(new OxfordUniversity());

var havardStudent = havard.AttendClass("Anthony");
var oxfordStudent = oxford.AttendClass("Kenneth");

Chibuikekenneth

public class HavardUniversity : ISchool
{
    public string Learn(string student)
    {
        return string.Format($"My name is {student}, and I attend Havard");
    }
}

public class OxfordUniversity : ISchool
{

Chibuikekenneth

public interface ISchool 
{
    public string Learn(string student);
}

Chibuikekenneth

public class School
{
    private readonly ISchool _school;
    
    public School(ISchool school)
    {
        this._school = school;
    }

    public string AttendClass(string student)

Chibuikekenneth

try
{
    WebResponse response = await request.GetResponseAsync();
    using (StreamReader reader = new StreamReader(response.GetResponseStream()))
    {
        string responseContent = reader.ReadToEnd();
        JObject adResponse =
            Newtonsoft.Json.JsonConvert.DeserializeObject<JObject>(responseContent);
        return adResponse;
    }

Chibuikekenneth

byte[] data = Encoding.UTF8.GetBytes(content);
WebRequest request = WebRequest.Create(url);
request.Method = "POST";
request.ContentType = "application/json";
request.Headers.Add("Authorization", "Bearer " + token);
request.ContentLength = data.Length;