### Question:
LoincId implements Serializable { @Override public boolean equals(Object o) { if (o == this) return true; if (!(o instanceof LoincId)) { return false; } LoincId other = (LoincId) o; return (this.num==other.num && this.suffix==other.suffix); } LoincId(String loinccode);  LoincId(String loinccode, boolean hasPrefix); @Override boolean equals(Object o); @Override int hashCode(); @Override @JsonValue String toString();  }### Answer:
@Test public void testEquals()throws MalformedLoincCodeException { String code1="19048-8"; String code2="19048-8"; LoincId id1=new LoincId(code1); LoincId id2=new LoincId(code2); assertEquals(id1,id2); }