GreetingImpl.java

package org.foo.hello.impl;

import org.foo.hello.Greeting;

public class GreetingImpl implements Greeting {
  final String m_name;

  GreetingImpl(String name) {
    m_name = name;
  }

  public void sayHello() {
    System.out.println("Hello, " + m_name + "!");
  }
}