A. Write a new method for the Greeter class,

public void swapNames(Greeter other) {...}

that swaps the names of this greeter and another instance.

b. write a new method for the Greeter class:
public Greeter createQualifiedGreeter(String qualifier) { }
that returns a new Greeter object with its name being the qualifier string followed by
" " and the executing greeter's name (i. e. this. name).