Just so you know<\/p>\n
With OnlineExamMaker quiz software<\/a>, anyone can create & share professional online assessments easily.<\/p>\n<\/div>\n 1. Objective-C is an extension of which programming language? 2. Who developed Objective-C? 3. What does the “@” symbol represent in Objective-C? 4. Which framework provides essential classes and functionalities in Objective-C? 5. Objective-C follows which programming paradigm? 6. What is ARC in Objective-C? 7. How are comments written in Objective-C? 8. In Objective-C, what is the syntax for declaring a class interface? 9. How do you create an instance of a class in Objective-C? 10. What does the “alloc” method do in Objective-C? 11. What is the purpose of the “dealloc” method in Objective-C? 12. How do you define a property in Objective-C? 13. In Objective-C, how do you call a method on an object? 14. What is the purpose of the “self” keyword in Objective-C? 15. What is the syntax for creating a method in Objective-C? Download questions & answers for free<\/p>\nTable of content<\/h3>\n
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<\/p>\nPart 1: 30 Objective-C quiz questions & answers<\/h3>\n
\n a) C++
\n b) C#
\n c) Java
\n d) C
\n Answer: d) C<\/p>\n
\n a) Steve Jobs
\n b) Tim Cook
\n c) Brad Cox and Tom Love
\n d) Bill Gates
\n Answer: c) Brad Cox and Tom Love<\/p>\n
\n a) Pointer operator
\n b) Message sending operator
\n c) String literal
\n d) Instance variable prefix
\n Answer: b) Message sending operator<\/p>\n
\n a) Core Data
\n b) Foundation
\n c) UIKit
\n d) Core Graphics
\n Answer: b) Foundation<\/p>\n
\n a) Functional programming
\n b) Object-oriented programming
\n c) Procedural programming
\n d) Imperative programming
\n Answer: b) Object-oriented programming<\/p>\n
\n a) Automatic Reference Counter
\n b) Advanced Runtime Configuration
\n c) Automatic Release Control
\n d) Automatic Reference Counting
\n Answer: d) Automatic Reference Counting<\/p>\n
\n a) \/* This is a comment *\/
\n b) \/\/ This is a comment
\n c)
\n d) # This is a comment
\n Answer: b) \/\/ This is a comment<\/p>\n
\n a) class MyClass {}
\n b) interface MyClass {}
\n c) @interface MyClass {}
\n d) def MyClass {}
\n Answer: c) @interface MyClass {}<\/p>\n
\n a) MyClass obj = [MyClass new];
\n b) MyClass obj = MyClass();
\n c) MyClass *obj = [[MyClass alloc] init];
\n d) new MyClass obj;
\n Answer: c) MyClass *obj = [[MyClass alloc] init];<\/p>\n
\n a) Allocates memory for a new object.
\n b) Deallocates memory for an object.
\n c) Initializes an object.
\n d) Allocates memory for an array.
\n Answer: a) Allocates memory for a new object.<\/p>\n
\n a) It allocates memory for an object.
\n b) It deallocates memory for an object.
\n c) It initializes an object.
\n d) It releases memory for an object.
\n Answer: b) It deallocates memory for an object.<\/p>\n
\n a) @property int age;
\n b) var age: Int;
\n c) int age;
\n d) property age;
\n Answer: a) @property int age;<\/p>\n
\n a) [object methodName]
\n b) object.methodName
\n c) object->methodName
\n d) methodName(object)
\n Answer: a) [object methodName]<\/p>\n
\n a) It refers to the superclass of the current class.
\n b) It refers to the current instance of the class.
\n c) It is used to create a new instance of a class.
\n d) It is used to access static methods.
\n Answer: b) It refers to the current instance of the class.<\/p>\n
\n a) method myMethod {}
\n b) func myMethod() {}
\n c) def myMethod {}
\n d) -(returnType)myMethod {}
\n Answer: d) -(returnType)myMethod {}<\/p>\nPart 2: Download Objective-C questions & answers for free<\/h3>\n