JAVA EE: Non-Static Method reference - Dog | Method reference in Java 8

Wednesday 14 June 2017

Non-Static Method reference - Dog | Method reference in Java 8 | Java method reference

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Non-Static Method reference - Dog | Method reference in Java 8 | Java method reference

MethodReferenceDemo.java

/**
 *
 * We have defined a functional interface Dog and referring a
 * non-static method dogEating() to it's functional method eat().
 *
 */

@FunctionalInterface
interface Dog
{
    void eat();
}

public class MethodReferenceDemo
{
    public void dogEating()
    {
        System.out.println("Dog is eating chicken.");
    }

    public static void main(String[] args)
    {
        // Creating object
        MethodReferenceDemo methodReferenceDemo = new MethodReferenceDemo();
        
        // Referring non-static method using reference
        Dog dog = methodReferenceDemo::dogEating;
        
        // Calling interface method
        dog.eat();
    }
}