What is lambda Expression in java?

Lambda expressions are the important feature of Java 8

A lambda expression is an anonymous or name less function

The Lambda expression is used to provide the implementation of an interface using an expression.

We don't need to define the method again and again for providing the implementation in lambda expression.

Advantages: less code is required

    Syntax:

  (argument-list) -> {body} 

  Note: it’s a method without a declaration, i.e., access modifier, return value declaration, and name.

Example:

interface Subable{  

  int sub(int x,int y); 

                         }  

  

   public class LambdaDemo{  

  public static void main(String[] args) {  

                  // Multiple parameters in lambda expression  

       Subable sb1=(x,y)->(x-y);  

        System.out.println(sb1.sub(150,20));  

        

       // Multiple parameters with data type in lambda expression  

  Subable sb2=(int x,int y)->(x-y);  

  System.out.println(sb2.sub(100,20));  

    }  

}