What is difference between 'protocol' and 'delegate'?

851

---

What manual memory management ? How it work?

895

---

What is 'notification'?

865

---

How to download something from the internet?

872

---

What happens if the methods doesn’t exist?

908

---

What is latest xcode version?

881

---

What is meaning of 'atomic' keyword?

904

---

Difference between sax parser and dom parser ?

889

---

What is use of uiapplication class?

871

---

What is 'private', 'protected' and 'public' ?

982

---

What is synchronized() block in objective c? What is the use of that?

872

---

how push notification works?

881

---

What is difference between 'assign' and 'retain' keyword?

849

---

Procedure to push the app in appstore?

875

---

What are the application lifecycle in ios?

876

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