### Question:
NumberFormatAtomicSignID implements SignIDProvider { @Override public void setCurrentMaxSignId(String maxSignId) { int maxSignIDNum = Integer.parseInt(maxSignId); provider.set(maxSignIDNum); } NumberFormatAtomicSignID();  NumberFormatAtomicSignID(String maxSignID); @Override void setCurrentMaxSignId(String maxSignId); @Override String incrementAndGet(); @Override String get(); @Override int parse(String id);  }### Answer:
@Test void setCurrentMaxSignId() { NumberFormatAtomicSignID val = new NumberFormatAtomicSignID(); val.setCurrentMaxSignId("003"); String actual = val.get(); assertEquals("003", actual); }