- [Access Modifiers](#access-modifiers)

- [Other modifiers](#other-modifiers)

- [Static](#static)

Java uses different access modfiers to set the access levels on variables, methods, constructors and classes.

* Visible to the package, the default. No modifiers are needed.

* Visible to the class only - `private`

* Visible to the world - `public`

* Visible to the package and all subclasses - `protected`

Apart from the access modifiers, the below keywords aka Non-Access modifiers can be used to achieve different functionalities.

* Creating class methods and variables - `static`

* Finalizing the implementations of classes, methods, and variables - `final`

* Creating abstract classes and methods - `abstract`

* For threads - `synchronized` & `volatile`

Static variables are also known as class variables. These variables exist independently of creation of instances. They can be accessed directly via classes. Regardless of how many instances of a class is created, there will always be a single copy static variable exist. They can be accessed using `ClassName.variable`.

Similar to variables, methods also can be marked as static to make them class methods. They can be called using `ClassName.method()`.

Since static methods are tied to class, it can not use any instance variable or methods (non static). But non-static methods can access or call static variables/methods.

Static block is used for initializing the static variables.This block gets executed when the class is loaded in the memory. A class can have multiple Static blocks, which will execute in the same sequence in which they have been written into the program

class StaticSample{

private static final String ENDPOINT = "/test";

//Static block

{

}

public static String fetchEndpoint(String baseUrl){

return baseUrl + ENDPOINT;

}

public void printEndpoint(){

System.out.println(ENDPOINT)

}

}