### Question:
CardHolder implements Cloneable, Serializable, Loggeable { public String getEXP () { return exp; } CardHolder();  CardHolder(String track2);  CardHolder(String pan, String exp);  CardHolder(ISOMsg m); void parseTrack2(String s); void setTrack1(String track1); String getTrack1(); boolean hasTrack1(); String getNameOnCard(); String getTrack2(); boolean hasTrack2(); void setSecurityCode(String securityCode); String getSecurityCode(); boolean hasSecurityCode(); @SuppressWarnings("unused") String getTrailler(); @SuppressWarnings("unused") void setTrailler(String trailer); String getTrailer(); void setTrailer(String trailer); void setPAN(String pan); String getPAN(); String getBIN(); void setEXP(String exp); String getEXP(); boolean isExpired(); boolean isExpired(Date currentDate); boolean isValidCRC(); static boolean isValidCRC(String p); void dump(PrintStream p, String indent); String getServiceCode(); boolean seemsManualEntry(); @Override int hashCode(); @Override boolean equals(Object obj);  }### Answer:
@Test public void testGetEXP() throws Throwable { CardHolder cardHolder = new CardHolder(); cardHolder.setEXP("99-8"); String result = cardHolder.getEXP(); assertEquals("99-8", result, "result"); }
@Test public void testGetEXP1() throws Throwable { String result = new CardHolder().getEXP(); assertNull(result, "result"); }