java长时间,保持Java程序永远运行或持续很长时间的最佳方法是什么？

I have java app which supports multiple workflows. Workflow is chosen using arguments passed to it from command line. In one of the workflow app needs to run for infinite time. I am achieving the same using following code

switch (args[0]) {

case "-runForever":

// Some Computation

Thread.sleep(Long.MAX_VALUE);

break;

case "otherCase:

//dosomething

break;

}

Is it a good way of achieving the required functionality?

解决方案

You could use an infinite loop:

while(true){}

However, that would eat up the CPU for no reason. Instead, you could just call the wait() method:

synchronized{

wait();

}

Then to resume, you'd call notify() from another thread.

More info here.

You could also just start another non-daemon Thread.