Added ProtocolManager class

src/main/java/Main/ProtocolManager.java

@@ -0,0 +1,48 @@
+package Main;
+
+import java.io.IOException;
+import java.io.Reader;
+import java.io.Writer;
+
+public class ProtocolManager {
+    Reader in;
+    Writer out;
+
+    public ProtocolManager(Reader in, Writer out) {
+        this.in = in;
+        this.out = out;
+    }
+
+    void sendMessage(String message) throws IOException {
+        ProtocolMessage packet = new ProtocolMessage(message);
+        packet.sendToStream(out);
+    }
+
+    void sendMessage(byte[] message) throws IOException {
+        ProtocolMessage packet = new ProtocolMessage(Utils.bytesToHex(message));
+        packet.sendToStream(out);
+    }
+
+    void sendMessage(char[] message) throws IOException {
+        ProtocolMessage packet = new ProtocolMessage(new String(message));
+        packet.sendToStream(out);
+    }
+
+    String getMessageStr() throws IOException {
+        ProtocolMessage packet = new ProtocolMessage();
+        packet.readFromStream(in);
+        return new String(packet.getMessage());
+    }
+
+    byte[] getMessageBytes() throws IOException {
+        ProtocolMessage packet = new ProtocolMessage();
+        packet.readFromStream(in);
+        return Utils.stringToBytes(String.valueOf(packet.getMessage()));
+    }
+
+    char[] getMessageChar() throws IOException {
+        ProtocolMessage packet = new ProtocolMessage();
+        packet.readFromStream(in);
+        return packet.getMessage();
+    }
+}