Trading4j - client for MetaTrader
· Contains a client for MetaTrader that allows accessing trading algorithms written using Trading4j over the network.
Download JD-GUI to open JAR file and explore Java source code file (.class .java)
Click menu "File → Open File..." or just drag-and-drop the JAR file in the JD-GUI window client-metatrader-0.1.jar file.
Once you open a JAR file, all the java classes in the JAR file will be displayed.