JAVA EE: Java Tutorial: Lambda expression in java[Lambda expression example with single parameter]

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LambdaDemo.java
@FunctionalInterface

interface Dog
{
    public void eat(String foodName);
}

/**
 * 
 * A lambda expression can have zero or any number of arguments.
 *
 */
public class LambdaDemo
{

    public static void main(String[] args)
    {
        /*
         * Java Lambda Expression Example: Single Parameter.
         */
        Dog dog = (foodName) ->
        {
            System.out.println("eating " + foodName);
        };
        dog.eat("Mutton");
    }

}