What are the differences in thread safety between C++ and Java?

What are the differences in thread safety between C++ and Java?

C++ and Java handle thread safety differently. Java has built-in support for multithreading with synchronized methods and blocks, while C++ relies on libraries like pthreads or C++11's std::thread.

Can you explain how synchronization works in Java?

In Java, synchronization is achieved using the synchronized keyword, which can be applied to methods or blocks of code to ensure that only one thread can access the synchronized section at a time.

What about C++? How do I ensure thread safety?

In C++, you can use mutexes from the <mutex> library to protect shared resources. You can lock a mutex before accessing a resource and unlock it afterward to ensure thread safety.

Are there any performance implications of using synchronization?

Yes, synchronization can introduce overhead and reduce performance due to context switching and potential contention among threads. It's important to minimize the scope of synchronized sections.