Modifier's, Variable's in Java.
Modifier's in Java-
Modifier's are keywords that you add to those defination's to change, modify or specify their meaning there are two major types of modifiers in java.
- Access
- Non-access
Access modifiers are-
Public- Visible to all.
Private- visible to class only.
Protected- Visible to the package and all sub-class.
Default- Visible to the package.
Non-access modifier are-
Static-
The static modifier for calling methods and variables without an object to which it belongs.
Final-
The final modifier for finalizing the implementation of classes ,methods and variables.
Abstract-
Abstract modifier for creating abstract classes and methods.
Synchronized and volatile-
The synchronized and volatile modifiers which are used for threads.
Variable's-
- Variables are memory locations which are reserved to store values.
- This implies while declaring a variable you reserve some memory.
- when you want to use a variable in a program, we should declare it.
int x;
- Here we declare variable x, which can store integer type data.
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