@Test public void testShowGreeting() { assertEquals("Hello Jane Doe!", helloWorld.showGreeting()); }
public String showGreeting() { return "Hello" + " " + firstName + " " + lastName + "!"; }
HelloWorld { public String showGreeting() { return "Hello" + " " + firstName + " " + lastName + "!"; } }
HelloWorld { public String showGreeting() { return "Hello" + " " + firstName + " " + lastName + "!"; }  }
HelloWorld { public String showGreeting() { return "Hello" + " " + firstName + " " + lastName + "!"; }  String getFirstName(); void setFirstName(String firstName); String getLastName(); void setLastName(String lastName); String showGreeting(); }
HelloWorld { public String showGreeting() { return "Hello" + " " + firstName + " " + lastName + "!"; }  String getFirstName(); void setFirstName(String firstName); String getLastName(); void setLastName(String lastName); String showGreeting();  }