new Thread(x->{}).run();
No matter how you look at the above code, you should start a new thread, after all, they are already new. But the above code is actually running in the current thread! If you want to start a new thread, you must use the .start() method, as follows:
new Thread(x->{}).start();
Then, I believe that there must be many recruiters who especially like to use this "pit" as a written test question. Once you don’t know about this pit, the recruiter will think “you can’t.”
You can take a look. Many Java written test questions are all of these "one-minute knowledge points" questions, which are knowledge points that you can learn in 1 minute. Others use them to evaluate whether you have worked for many years.
Many companies are still full of written test questions such as "one-minute knowledge points" when recruiting technical managers or programmers with more than 2 years of experience. So, why do many companies complain that they cannot recruit talented people with excellent skills? This kind of written test questions attracts question-writing experts, but who would do the real skilled ones to practice questions?
Back to the topic of this article.
So how should Java be changed? Isn't there any pitfalls like this:
new Thread().runInCurrentThread();
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