为什么增强for循环中的最终变量不是最终的？ [英] Why final variable in enhanced for loop does not act final?

问题描述

public class EnhancedForTest {
  public static void main(String... args) {
    String[] strArr = {"A", "B", "C", "D"};

    for (final String s : strArr) {
      System.out.println(s);
    }
  }
}

因为String s是最终的delcared，这段代码不应该编译。但是，这工作正常。为什么？



我尝试了什么：



我什么都没有可以尝试！

Since the String s is delcared as final, this code should not compile. However, this is working fine. Why?

What I have tried:

there was nothing i could try !

推荐答案

因为变量 s 是的本地循环，因此在每次迭代时重新创建。

Because the variable s is local to the for loop, so it is recreated at each iteration.

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