Interface in java
// interface in java example
interface Vehicle
{
public void accelerate();
}
class BMW implements Vehicle
{
public void accelerate()
{
System.out.println("BMW accelerating...");
}
}
public class InterfaceDemo
{
public static void main(String[] args)
{
BMW obj = new BMW();
obj.accelerate();
}
}how to implement a interface in java
interface methods{
public static hey();
}
class scratch implements methods{
// Required to implement all methods declared in an interface
// Or else the class becomes abstract
public static hey(){
System.out.println("Hey");
}
}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.interface in java
/* File name : MammalInt.java */
public class MammalInt implements Animal {
public void eat() {
System.out.println("Mammal eats");
}
public void travel() {
System.out.println("Mammal travels");
}
public int noOfLegs() {
return 0;
}
public static void main(String args[]) {
MammalInt m = new MammalInt();
m.eat();
m.travel();
}
}functional interface java
A functional interface is an interface that contains only one abstract method. They can have only one functionality to exhibit.java interface
public interface Exampleinterface {
public void menthod1();
public int method2();
}
class ExampleInterfaceImpl implements ExampleInterface {
public void method1()
{
//code here
}
public int method2()
{
//code here
}
}Copyright © 2021 Codeinu
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