JAVA EE: How to refer a constructor using method reference

Thursday, 15 June 2017

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How to refer a constructor using method reference | Method reference in Java 8

MethodReferenceDemo.java

/**
 *
 * We are using functional interface Messageable and referring constructor with
 * the help of functional interface.
 *
 */
@FunctionalInterface
interface Messageable
{
    Message getMessage(String msg);
}

class Message
{
    public Message(String msg)
    {
        System.out.print(msg);
    }
}

public class MethodReferenceDemo
{
    public static void main(String[] args)
    {
        Messageable messageable = Message::new;
        messageable.getMessage("Hello");
    }
}