Understanding Lambda Expresssions with a Simple Method Call

Lambda expressions have simplified the way we write code. For example, let’s see how to use a method from an interface.

This works with Java 1.8 only. Expected output: Welcome to Lambda expressions

public class LambdaDemo{   public static void main(String args[])   {      LambdaDemo lambdaDemo = new LambdaDemo();            //Using the interface to print       WelcomeMessage welcomeMessage = welcomeString -      System.out.println("Welcome " + welcomeString);           welcomeMessage.printMessage("to Lambda expressions");   }      //Interface definition   interface WelcomeMessage {      void printMessage(String welcomeString);   }}
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