### Question:
Address { @Override public String toString() { return address; } Address(PrivateKey privateKey);  Address(PublicKey publicKey);  Address(String address); static boolean isValid(String address); byte[] getBytes(); @Override String toString();  }### Answer:
@Test public void privKeyToPubKey() { Assert.assertEquals(TEST_PUBK, TEST_PRIV_KEY.getPublicKey().toString()); }
@Test public void testAddressFromPubK() { Assert.assertEquals(TEST_ADDRESS, new Address(TEST_PRIV_KEY).toString()); }
@Test public void testAddressFromPrivK() { Assert.assertEquals(TEST_ADDRESS, new Address(TEST_PUB_KEY).toString()); }