Person.java

/** A simple class used to demonstrate unit testing. */ public class Person { protected String fullName; protected String firstName, lastName; /** Construct a Person using his/her first+last names. */ public Person(String firstName, String lastName) { this.firstName = firstName; this.lastName = lastName; } /** Get the person's full name */ public String getFullName( ) { if (fullName != null) return fullName; return firstName + " " + lastName; } /** Simple test program. */ public static void main(String[] argv) { Person p = new Person("Ian", "Darwin"); String f = p.getFullName( ); if (!f.equals("Ian Darwin")) throw new IllegalStateException("Name concatenation broken"); System.out.println("Fullname " + f + " looks good"); } }