如何“这个”在Java中转义构造函数？ [英] How does "this" escape the constructor in Java?

问题描述

我听说过这种情况发生在非线程安全的代码，因为不正确的构造的对象，但我真的没有这个概念下来，即使在阅读Goetz的书中。我想巩固我对这种代码气味的理解，因为我可能做到这一点，甚至没有意识到。请在您的解释中提供代码，使其坚持，谢谢。

I've heard about this happening in non thread-safe code due to improperly constructed objects but I really don't have the concept down, even after reading about in in Goetz's book. I'd like to solidify my understanding of this code smell as I maybe doing it and not even realize it. Please provide code in your explanation to make it stick, thanks.

推荐答案

非常简单的示例：

public class Test
{
    private static Test lastCreatedInstance;

    public Test()
    {
        lastCreatedInstance = this;
    }
}

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