Define 'weak' keyword?

759

---

Define 'strong' keyword?

758

---

How nsoperationque works?

762

---

Define autorealease pool?

803

---

What is the first responder?

736

---

What is the significance of autorelease?

763

---

Define cocoa?

739

---

What is the 'implementation'?

719

---

What is the meaning of 'synthesize' keyword?

706

---

Define 'retain' keyword?

778

---

Explain how to hide images in ios?

794

---

Differentiate between release and pool drain?

814

---

How to parse json?

812

---

What manual memory management?

734

---

Explain how to delete images in ios?

802

---