Explain Generics in C# ? When and why to use them ?

[@sreenubabusreeram]

2:13 Hi Happy Sir, Integer to object involves boxing it is ok then is it string to object is not involve boxing I think is it correct or not but i agree with convertion i ask this question because of string also reference type and object also reference type then how boxing is possible?

[@nithin-j2e]

simple and straight

[@KIRANKUMAR-mn6rw]

how do equate class using generics? say u have class A with set of properties and class B with other set of properties so now how do u compare?

[@interviewhappy]

Hi Kiran, I think object.Equals and with generics this IEquatable will do what you are asking.

[@ssmcs060]

Apart from object, cant we use method overloading?

[@interviewhappy]

Yes Sampat you are right, but then you have to write more lines of code for new overloaded methods which is a overhead then.

[@ssmcs060]

@@interviewhappy hummmm. I was also started thinking this lately. If 2 such methods exist then results in 4 methods.

[@vinaybammidi7123]

Thank you. Very useful. Generic are necessary.

[@interviewhappy]

Welcome Vinay

[@sribardhansimhadri3613]

Very Nice Explanation

[@shreedharrs9540]

Pls make a video of framework automation it is helpful every one pls do it asap

[@interviewhappy]

Sure, I will try, but it might take some time. All the best.

[@lakshmisony8803]

So in generic class we have to define static class only.is'tit?

[@rohitharajayalakshmi6729]

no for static also -- for class generic using System; public class HelloWorld { public static void Main(string[] args) { cal c = new cal(); int str = c.AreEqual(3,3); cal cl = new cal(); string str1 =cl.AreEqual("r","r"); Console.WriteLine(str); Console.WriteLine(str1); Console.ReadLine(); } public class cal { public T AreEqual(T x, T y) { return x; } } } -- for method generic using System; public class HelloWorld { public static void Main(string[] args) { cal c = new cal(); int str = c.AreEqual(3,3); string str1 =c.AreEqual("r","r"); Console.WriteLine(str); Console.WriteLine(str1); Console.ReadLine(); } public class cal { public T AreEqual(T x, T y) { return x; } } }

[@deepakgupta5733]

What does generics internally use?

[@interviewhappy]

Good question Deepak. I will get back on this and if you know, then you can share.

[@danielroma2370]

Good explanation, thank you!

[@interviewhappy]

Glad it was helpful! Daniel

[@Khushi-FoodPlaza]

Please make video on array 😢real time projects pls

[@sahaksargsyan7397]

Hello Happy, it will be nice, if you make video about inheritance from generic class. Thank you

[@madhavikiran6920]

Can you make video on Generic collection?

[@interviewhappy]

Sure Madhavi

[@bandarapurajashekarreddy1692]

Please do video on Reflection in c#

[@interviewhappy]

Sure Raja, soon I will

[@leelanp]

good explanation

[@interviewhappy]

Thanks Leela

[@imadabab]

Good explanation. Thanks.

[@interviewhappy]

You're welcome!

[@prabhatkumar353]

Thanku sir Nice explanation

[@interviewhappy]

Always welcome @prabhat

[@kaniyansai]

Very very useful

[@interviewhappy]

Glad you think so@ kaniyansai

[@poojachavan396]

Can you make video on Entity framework core interview questions?

[@interviewhappy]

I added some questions of EF but not all. May be in future I will add them.

[@manieditz3012]

Thank you sir

[@vipulshrivastava1069]

Set video paly speed to 1.25

[@rajumechanicalhub5805]

Tq sir