Answers for "why do we use interfaces in java"

4

interface in java

Interfaces specify what a class must do. 
It is the blueprint of the class.
It is used to achieve total abstraction. 
We are using implements keyword for interface.

Basic statement we all know in Selenium is
WebDriver driver = new FirefoxDriver();
WebDriver itself is an Interface.
So we are initializing Firefox browser
using Selenium WebDriver.
It means we are creating a reference variable
of the interface and creating an Object.
So WebDriver is an Interface and
FirefoxDriver is a class.
Posted by: Guest on November-28-2020
2

Interface in java

// interface syntax
interface InterfaceName
{
   fields // by default interface fields are public, static final
   methods // by default interface methods are abstract, public
}
Posted by: Guest on November-30-2020
0

syntax for java interfaces

  class  ClassName [ extends SuperClassName ]
		[ implements InterfaceName1 [, Interface Name2 �] )  {
			class body 
	}
Posted by: Guest on June-28-2021

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