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    <p>Shoe-horning generics into a project just because "I want to use generics" is usually a bad idea. use the right tool for the right job. now, props for trying to learn something new.</p> <p>that said... Basically, a "generic" is a way of specifying a method, class (etc) without specifying an underlying type when you write it. It is a good way to separate your algorithm from you data type.</p> <p>take, for example, a Swap method. Basically, the swap algorithm is the same no matter what the type it is operating on. So, this would be a good candidate for a generic (as would a <code>List</code>, a <code>Dictionary</code>, etc)</p> <p>so, a swap for an <code>int</code> would like like this:</p> <pre><code>void Swap(ref int left, ref int right) { int temp = left; left = right; right = temp; } </code></pre> <p>now, you COULD write overloads for your other datatypes (<code>float</code>, <code>double</code>, etc) or you COULD make it a generic and write it once so it will work on pretty much all datatypes:</p> <pre><code>void Swap&lt;_type&gt;(ref _type left, ref _type right) { _type temp = left; left = right; right = temp; } </code></pre> <p>now, your sample code wont work:</p> <pre><code>Public void CreateAccount(int duration, int amount) { T.DurationInMonth = duration; T.DepositedAmount = amont; int interestVal = T.Interest; SaveToDatabase (T); } </code></pre> <p>here, <code>T</code> is the type, not an instance of an object. if you substitute for <code>T</code>, it becomes clearer what is going on:</p> <pre><code>Public void CreateAccount(int duration, int amount) { IbankAccount.DurationInMonth = duration; IbankAccount.DepositedAmount = amont; int interestVal = IbankAccount.Interest; SaveToDatabase (IbankAccount); } </code></pre> <p>when what you REALLY want is this:</p> <pre><code>Public void CreateAccount(int duration, int amount) { account.DurationInMonth = duration; account.DepositedAmount = amont; int interestVal = account.Interest; SaveToDatabase (account); } </code></pre> <p>you see, here we are calling the methods of the INSTANCE of the class account, not of the generic <code>IbankAccount</code> TYPE</p>
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    1. POUnderstanding .Net Generics - Bank Domain
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    1. USMuad'Dib
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    1. COThanks. The use of "type" instead of instance was a typo from my side. I already meant what you have said. Do you have inputs regarding other parts of the question?
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    2. CO@Lijo, nothing to add that no one else hasn't said already
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