Himangshu | Software Engineer Mentor on Instagram: "In Java, the same Thread object cannot be started twice; calling start() a second time on an already-started thread throws a java.lang.IllegalThreadStateException at runtime.​ What start() does Calling start() on a new thread object transitions it from the NEW state to the RUNNABLE state and arranges for its run() method to execute on a new call stack.​ After the thread finishes, it reaches the TERMINATED (dead) state and stays there permanentl