Fixed mistyped words (#25401)

This commit is contained in:
Robert Samu
2018-11-21 07:07:50 +02:00
committed by Aditya
parent 49a9ef11a9
commit 184b5c2bf0

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@ -15,7 +15,7 @@ Tokens are the smallest units of a program which are important to the compiler.
### What are Variables ? ### What are Variables ?
* Textbook definition : Variables are named memory locations whoose data can be altered. * Textbook definition : Variables are named memory locations whose data can be altered.
* But I would like you to think of a variable to be something like a box, something like this : * But I would like you to think of a variable to be something like a box, something like this :
![Img](https://i.imgur.com/YdbgWHL.png) ![Img](https://i.imgur.com/YdbgWHL.png)
@ -25,8 +25,8 @@ So, for example :
Hence , we know that a variable in C++ needs a *name* and a *data type* and that the value stored in them can be changed. Hence , we know that a variable in C++ needs a *name* and a *data type* and that the value stored in them can be changed.
### Data Types in C++ : ### Data Types in C++ :
When declaring variables in c++ they must have a name to which you will reffer later on, a value (constant or not) and a type. When declaring variables in c++ they must have a name to which you will refer later on, a value (constant or not) and a type.
The type will tell the compiler the values that the variable can use, the possible operations and will save a certain space in memmory. The type will tell the compiler the values that the variable can use, the possible operations and will save a certain space in memory.
In c++ there are two types of data: In c++ there are two types of data:
* Simple type * Simple type
* Struct type * Struct type
@ -65,10 +65,10 @@ long
## Rules for naming a variable : ## ## Rules for naming a variable : ##
- Start naming with a letter from A-Z or a-z . - Start naming with a letter from A-Z or a-z .
- Numbers can follow thee first letter but we cannot start naming with numbers. - Numbers can follow the first letter but we cannot start naming with numbers.
- NO use of spaces or special characters are allowed, instead, use an UNDERSCORE _ . - NO use of spaces or special characters are allowed, instead, use an UNDERSCORE _ .
#### Declaring a variabe : #### Declaring a variable :
The syntax is as follows The syntax is as follows
<*data type*> <*variable name*>; <*data type*> <*variable name*>;
@ -107,7 +107,7 @@ long l!!;
You can imagine different boxes of different sizes and storing different things as different variables. You can imagine different boxes of different sizes and storing different things as different variables.
**NOTES :** **NOTES :**
1. **The C++ compiler ignores whitespaces and they are generally used for beautification of the code so that it is eassy for any programmer to debug or understand the code.** 1. **The C++ compiler ignores white spaces and they are generally used for beautification of the code so that it is easy for any programmer to debug or understand the code.**
2. **If a variable is not initialized , it contains a garbage value. Let me give an example:** 2. **If a variable is not initialized , it contains a garbage value. Let me give an example:**
### Scope of Variables ### Scope of Variables