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jacob rasel
jacob rasel

Total Post:88

Posted on    June-12-2013 5:24 AM


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Given that interfaces are also used to help hide information, giving the user only a subset of the possible methods they are allowed to use, and, let's say, I have a Person class and interface IPerson.

Now in main, I'm allowed to do

IPerson testy = new Person();


Person testy = new Person();

So really I'm not restricted from using Person still. So how does the interface truly hide data?

Vijay Shukla

Total Post:100

Posted on    June-12-2013 7:53 AM

Hey Jacob Rasel!

What if You dont have that Person class.

 Object obj = loadObject();


 if(obj is IPerson) {


  IPerson person = (IPerson) obj;




  IPerson person = loadPerson();

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