Like C and C++ objective-C provides comments. Programmer can use single or multi line comments in the code according to the need.

Message Expressions and comments

     

Like C and C++ objective-C provides comments. Programmer can use single or multi line comments in the code according to the need. Message expressions are enclosed in square brackets.

Message Expressions in Objective-C

Message expressions are enclosed in square brackets as given below:
[receiver message]

Receiver can be a variable or expression that evaluates to an object (including the variable self)
■ A class name (indicating the class object)
■ super (indicating an alternative search for the method implementation)
The message is the name of a method plus any arguments passed to it.

Comments
Like C and C++ comments // and /*- - - - */ are allowed.
For example:

1. 00080">// comment.
2. /* comment.
     Comment. */

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More Tutorials from this section

• Access Modifiers and Garbage Collection
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• Class and Method declaration and definitions
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• Compiling Objective C
• Objective C Constructors
• Objective-c Dealloc
• Dynamic Types in Objective-C
• Exception handling in Objective-C
• Objective C
• Objective-c memory management: retain and release
• Message Expressions and comments
• Objective C Hello World
• Objective C Introduction
• Objective C on Mac
• Objective C on Windows
• Objective-C Inheritance
• Objective-C program with multiple parameter
• Objective-C keywords
• Objective C Tutorial