Java Executor应该永远运行的任务的最佳实践

I'm working on a Java project where I need to have multiple tasks running asynchronously. I'm led to believe Executor is the best way for me to do this, so I'm familiarizing myself with it. (Yay getting paid to learn!) However, it's not clear to me what the best way is to accomplish what I'm trying to do.I'm working on a Java project where I need to h