有没有办法在不使用线程的情况下暂停Java程序？

Question

Is there any way to pause the Java program without using thread? I want to know another way to pause the program without exit program like we use System.exit to exit the system. Is there any way to pause,stuck the program the same as System.exit does.

Answer 1

When you say pause, it means you want some code lines X to execute first and then code lines Y.

Between X and Y, you want pause which could be via thread sleep and wait. Wait would mean notify from another thread. But you don't want to use threads.

Another way would be external trigger via property, whose value would act as a condition in your loop. The loop will be infinite on initial value of property, and condition will be false the moment you change it.

Another way to solve is let first X lines execute and Y would be inside MVC controller, which would be again external trigger via service call. This is possible if it's a web application.