### Question:
Yards extends Length { @Override public Yards clone() { return (Yards)super.clone(); } Yards(double yards);  Yards(Length dist); @Override Yards clone(); @Override String getLongLabel(boolean plural); @Override String getShortLabel(boolean plural); @Override double inFeet(); static final int FEET_PER_YARD; static final String YARDS_LONG_LABEL; static final String YARDS_SHORT_LABEL; }### Answer:
@Test public void testClone() { Length dist = new Yards(1760.); Assert.assertEquals(dist.getMagnitude(), dist.clone().getMagnitude(), 0.); }