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Tip: Understanding Lambda Expresssions with a Simple Method Call

Lambda expressions have simplified the way we write code. Learn how to use a method from an interface.


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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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Sridhar M S. is a Java developer from Bangalore, India. He holds a master's degree in Computer Science.
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