how to make an interface in java

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

// Assume we have the simple interface: interface Appendable { void append(string content); } // We can implement it like that: class SimplePrinter implements Appendable { public void append(string content) { System.out.println(content); } } // ... and maybe like that: class FileWriter implements Appendable { public void append(string content) { // Appends content into a file } } // Both classes are Appendable. 0 how to implement a interface in java

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