When implementing multi-threading, what is the first step to start a thread in Java?

To start a thread in Java, the proper initial step is to call the start() method on a Thread instance. This method is essential because it initiates a new thread, allowing the Java Virtual Machine (JVM) to allocate resources and execute the new thread independently of the calling thread. When start() is invoked, the thread enters the "runnable" state and is then scheduled to run based on the JVM's management.

Choosing to directly call the run method would not start a new thread but simply execute the run method in the current thread, causing it to run like any regular method would. While creating an instance of Runnable or instantiating a Thread object may be necessary preliminary steps in some contexts, calling start() is the definitive action that actually transitions the thread from an inactive to an active state in the multi-threading ecosystem of Java.