One. Thread class inheritance
Thread class itself is an instance implement Runnable, a representative example of a thread. The only way to start the thread is () instance method by start Thread class. start () method is a local method, he will start a new thread, and executes run () method.
To do: through the direct successor Thread class created their own, rewrite the run () method, you can start a new thread and customize the run () method.
The code is simple, the class can not inherit from other classes.
Second, implement Runnable
A class can implement more than, but not multiple inheritance.
Inherit from other classes, implement the unified interface instance can share resources.
Third, to achieve Callable Interface
A class can implement more than, but not multiple inheritance.
call Callable interface () method returns a value, Runnable not;
Inherit from other classes, implement the unified interface instance can share resources.
Fourth, the thread pool mode
A container accommodating a plurality of threads, wherein the threads can be reused, often eliminating the need for creating a thread objects. Automated assembly, recycling of resources.
Five, lock than synchronized advantage
Formula 1 now acquire and release locks.
2 facilitate the achievement of fair locks.
