### Question:
Interval implements java.io.Serializable, Comparable<Interval<T>> { public boolean allLeftOf(int point) { return (maxEnd <= point); } Interval(MutableInterval<T> other);  Interval(int begin, int end, T value, int maxEnd); int getBegin(); int getEnd(); T getValue(); int getMaxEnd(); boolean allLeftOf(int point); boolean isLeftOf(int point); boolean isRightOf(int point); boolean contains(int point); boolean overlapsWith(int begin, int end); @Override int hashCode(); @Override boolean equals(Object obj); int compareTo(Interval<T> o); @Override String toString();  }### Answer:
@Test public void testAllLeftOf() { Assert.assertFalse(interval.allLeftOf(10)); Assert.assertFalse(interval.allLeftOf(12)); Assert.assertTrue(interval.allLeftOf(13)); Assert.assertTrue(interval.allLeftOf(14)); }