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Types of variables (#29670)

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Types of variables specified in a class.
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Aaditree
2019-02-15 02:50:07 +05:30
committed by Randell Dawson
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guide/english/java/variables/index.md
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@ -47,15 +47,21 @@ int byteValue = 0B101;
byte anotherByte = (byte)0b00100001;
```
## Variable Data Types
As evident from the above example, variables of Primitive type behave slightly differently from variables of Reference (& Wrapper) type - while Primitive variables <i>store</i> the actual value, Reference variables <i>refer to</i> an 'object' containing the actual value.
Java Programming language defines mainly three kind of variables.
1) Instance variables
2) Static Variables
3) Local Variables
You can find out more in the sections linked below.
1. Local Variable:
It is declared inside the method and can only be used within the method itself.
# Other Resources
2. Static variable:
Any variable which has the keyword static is called a static variable .
It cannot be created as a local variable. Once created , it can be used among all the instances of the class.
3. Instance Variable:
It is declared inside a class but not in a specific method body.
## Other Resources
* <a href='https://guide.freecodecamp.org/java/data-types' target='_blank' rel='nofollow'>Data Types</a>
* <a href='https://guide.freecodecamp.org/java/classes-and-objects' target='_blank' rel='nofollow'>Classes and Objects</a>