Can a class implement two interfaces at the same time?

I tried doing something like this:

class Student: IPe开发者_如何学CrsonalDetails: IOtherDetails
{
      //Code
}

It gives error. Why I can't implement two interfaces?

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Use a comma between the interface types, e.g.

class Student: IPersonalDetails, IOtherDetails
{
      //Code
}

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Change it to

class Student: IPersonalDetails, IOtherDetails
{
  //Code
}

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Yes it can, have a deep look at your syntax.

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Yes! You definitely can. You can even implement more than 2. I am not sure if there is a limit on how many interfaces you can implement at a time.

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Yes, a class can definitely implement more than one interface. After all, that is the whole point of interfaces.

Take a look at the error message you are getting. It is not telling you that a class cannot implement more than one interface. It is telling you that have a syntax error.

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Yes, or like this which of course targets completely different design goal and you could say that in fact it's still only one interface due to polymorphic nature of inheritance, but still:

public interface IEntity 
{
    void DoTask();
}

public interface IExtendedTaskEntity : IEntity
{
    void DoExtendedTask();
}

public class ConcreteEntity : IExtendedTaskEntity 
{

    #region IExtendedTaskEntity Members

    public void DoExtendedTask()
    {
        throw new NotImplementedException();
    }

    #endregion

    #region IEntity Members

    public void DoTask()
    {
        throw new NotImplementedException();
    }

    #endregion
}