What is the difference between the sleep () method of the thread class and the Wait () method of the object that allows the thread to pause execution? What is the difference between the sleep () method of a thread and the yield () method?

What is the difference between the sleep () method of the thread class and the Wait () method of the object that allows the thread to pause execution?

The Sleep () method (Hibernate) is a static method of the thread class (threads), which causes the current thread to pause execution for a specified time, giving the execution opportunity (CPU) to another thread, but the lock on the object remains , so that it is automatically restored after the sleep time has ended . Wait () is a method of the object class, and the Wait () method of the calling objects causes the current thread to discard the lock on the object (the thread pauses execution), into the object's wait pool (wait pools), only the Notify () method of the calling object (or Notifyall () method) to wake the thread in the wait pool into the lock pool, and if the thread re-obtains the lock on the object, it can enter the ready state.

What is the difference between the sleep () method of a thread and the yield () method?

The ①sleep () method gives other threads the opportunity to run without taking into account the priority of the thread, thus giving the low-priority thread a chance to run ;

The yield () method will only give the same priority or higher priority to the thread to run the opportunity ;
The ② thread executes the sleep () method and then goes into a blocking (blocked) state , and the yield () method is transferred to the ready state ;
The ③sleep () method declaration throws interruptedexception, and the yield () method does not declare any exceptions;
The ④sleep () method is more portable than the yield () method, which is related to operating system CPU scheduling.

What is the difference between the sleep () method of the thread class and the Wait () method of the object that allows the thread to pause execution? What is the difference between the sleep () method of a thread and the yield () method?