### Question:
Version implements Comparable<Version> { public Version() { } Version();  Version(String version);  Version(int major, int minor, int patch); int getMajor(); void setMajor(int major); int getMinor(); void setMinor(int minor); int getPatch(); void setPatch(int patch); void setVersion(String version); @Override int compareTo(Version version); @Override String toString(); @Override boolean equals(Object o); @Override int hashCode();  }### Answer:
@Test public void testVersion() { Version version = new Version("1.2.3"); assertEquals(1, version.getMajor()); assertEquals(2, version.getMinor()); assertEquals(3, version.getPatch()); assertEquals("1.2.3", version.toString()); version = new Version(4, 5, 6); assertEquals(4, version.getMajor()); assertEquals(5, version.getMinor()); assertEquals(6, version.getPatch()); assertEquals("4.5.6", version.toString()); Version other = new Version("4.5.6"); assertEquals(version, other); }