### Question:
LeftSideZerosFormatter implements Formatter { @Override public String unformat(String value) { Integer integer = Integer.valueOf(value); String formated = integer.toString(); return formated; } LeftSideZerosFormatter(int formattedLength); @Override String format(String value); @Override String unformat(String value); @Override boolean isFormatted(String value); @Override boolean canBeFormatted(String value);  }### Answer:
@Test public void testUnformat() { String actual = formatter.unformat("000567890"); assertEquals("567890", actual); }