Objectivec vs swift
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Objective-C and Swift are programming languages used to develop apps for Apple platforms. Objective-C was developed in the 1980s and has since been replaced by Swift, which was introduced in 2014. While the two languages share some similarities like curly braces and square brackets, Swift addresses issues with Objective-C like bulky syntax and lack of features like generics through its cleaner syntax and strong typing.
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c++session 1.pptxPadmaN24
油
C++ session 1 introduces object oriented programming concepts including objects, classes, data encapsulation, inheritance, polymorphism, dynamic binding, and message passing. Objects are the basic building blocks and are members of classes. Classes define user-defined data types that contain both code and data. Data encapsulation combines data and functions into a single unit called a class. Inheritance allows classes to inherit features from other classes without modifying them. Polymorphism allows functions to take on multiple forms based on argument types. Dynamic binding determines which code to run at runtime. Message passing involves sending requests to objects to execute procedures.Objectivec vs swift
- 1. Objective C vs Swift
- 2. Objective C Object-oriented programming language Developed in the early 1980s (NeXTSTEP) Files have .h and .mm file extensions, C header files Created primarily by Brad Cox Messages,Interface,Implementation,Instantiation 2014, Apple announced plans to replace Objective-C new Swift language
- 3. Worst things about Objective-C Bulky syntax,Squared brackets,Memory management No Generics,No enums,No operator overloading Dealloc won't be called automatically More Complex object sort Publishing an Apple app is a nightmare No Generics
- 4. Swift Father is Chris Latter(july 2010) Functional,Fast,Funny,Happy Variable name,Tuples, No pointers Function with multiple return values Apple Swift has clean syntax
- 5. Similarities to Objective-C Curly braces are used to group statements. A new identity operator, ===, is provided to check if two data elements refer to the same object. Square brackets are used with arrays, both to declare them and to get a value at a given index in one of them. Control statements are similar. Class methods are inherited, just like instance methods; self in class methods is the class the method was called on.
- 6. Differences from Objective-C No semicolon, Header files, Exception handling Strong typing,Type inference Fallthrough for switch case
- 7. Differences from Objective-C No semicolon, Header files, Exception handling Strong typing,Type inference Fallthrough for switch case