public String sayHi();
public String sayHi(boolean hello);
public String sayHi(final String name);
public final String greetMe(final String name);
public final String greetUs(final String name1, String name2);
public final String greetAll(String[] names);
public final String greetAll(java.util.List<String> names);
public final String[] greetTimes(String name, int times);
