### Question:
CommonCourtDivisionUtils { public static String tryExtractNonLocalType(String divisionCode) { if (divisionCode.length()<=4) { return null; } return divisionCode.substring(divisionCode.length()-5, divisionCode.length()-4); } private  CommonCourtDivisionUtils(); static boolean isStrictlyValidCcDivisionCode(String divisionCode); static boolean isTolerantlyValidCcDivisionCode(String divisionCode); static String tryExtractNonLocalType(String divisionCode); static String tryExtractNonLocalCode(String divisionCode); static String tryExtractDivisionTypeCode(String divisionCode); static String tryExtractDivisionNumber(String divisionCode);  }### Answer:
@Test public void extractNonLocalType_3digit() { assertNull(CommonCourtDivisionUtils.tryExtractNonLocalType("123")); }
@Test public void extractNonLocalType_5digit() { assertEquals("1", CommonCourtDivisionUtils.tryExtractNonLocalType("12123")); }
@Test public void extractNonLocalType_6digit() { assertEquals("1", CommonCourtDivisionUtils.tryExtractNonLocalType("212123")); }