Created the Address class

src/main/java/com/luminiasoft/bitshares/Address.java

@@ -0,0 +1,39 @@
+package com.luminiasoft.bitshares;
+
+import com.google.common.primitives.Bytes;
+import org.bitcoinj.core.Base58;
+import org.bitcoinj.core.ECKey;
+import org.spongycastle.crypto.digests.RIPEMD160Digest;
+
+import java.util.Arrays;
+
+/**
+ * Class used to encapsulate address-related operations.
+ */
+public class Address {
+    public final static String DEFAULT_PREFIX = "BTS";
+
+    private ECKey key;
+    private String prefix;
+
+    public Address(ECKey key){
+        this.key = key;
+        this.prefix = DEFAULT_PREFIX;
+    }
+
+    public Address(ECKey key, String prefix){
+        this.key = key;
+        this.prefix = prefix;
+    }
+
+    @Override
+    public String toString(){
+        byte[] pubKey = key.getPubKey();
+        byte[] checksum = new byte[160 / 8];
+        RIPEMD160Digest ripemd160Digest = new RIPEMD160Digest();
+        ripemd160Digest.update(pubKey, 0, pubKey.length);
+        ripemd160Digest.doFinal(checksum, 0);
+        byte[] pubKeyChecksummed = Bytes.concat(pubKey, Arrays.copyOfRange(checksum, 0, 4));
+        return this.prefix + Base58.encode(pubKeyChecksummed);
+    }
+}