3.1.5 Comment statement in C++ Program:, Chapter 3 - Object Oriented Programming in C++, HSSC-II (12th Class) Computer Science Key Point Notes

12th Class (HSSC-II) Computer SLO Based Key Point Notes

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Unit 3: Object-Oriented Programming in C++

3.1.5 Comment statement in C++ Program:

The comment statements are non-executable statements which are used to add remarks or comments in a program.

Comments are used:

• To increase the readability of the program.
• You can easily understand the logic of a program.
• It can help in debugging and modifying the program.

In C program, comments can be added in a program in two ways:

1. Single line comments: Comments on a single line are added by using the double slash “//”. For example:

• A = L * W; // A formula to calculate the area of a rectangle.
• int = a; // A statement to declare a variable of integer.

    2. Multi-line comments: Multi-line comments are inserted by placing /*

at the beginning of the comments and */ is placed at the end of the comments. For example:

• /* A program to calculate the area of a rectangle */

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3.1 Introduction to Object-Oriented Programming (OOP):

3.1.1 Computer Program/Software:

3.1.2 Header File and Reserved Words

3.1.3 Structure of C++ Program

3.1.4 C++ program statement Terminator:

3.1.5 Comment statement in C++ Program:

3.2.1 C++ Constants and Variables

3.2.2 Rules for Naming a Variable:

3.2.3 Different C++ data types for variable

3.2.4 The Constant Qualifier (const)

3.2.5 Variable Declaration and Initialization

3.2.6 Type Casting

3.3: Input / Output Handling

3.3.1 The cout Statement

3.3.2 The cin Statement:

3.3.3 The getch() function:

3.3.4 Commonly Used Escape Sequences

3.3.5 Commonly Used Escape Sequences

3.3.6 The Programing with I/O Handling Function

3.3.7 The Manipulators endl and setw

3.4.1 Types of Operator in C++:

3.4.2 UNARY, BINARY AND TERNARY OPERATORS

3.4.3 Order of Precedence of Operator

3.4.4 Expression in C++

4.1.4. The Switch Statement:

Chapter 3 (Complete Key Point Notes)

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