java - 导入 java.nio.file 的问题

Question

为什么这条线不起作用？

import static java.nio.file.AccessMode.*;

eclipse 说:

The import java.nio.file cannot be resolved

这是到目前为止的整个程序:

import static java.nio.file.AccessMode.*;

public class CheckFileAccessibility {
 public static void main(String[] args) {

 }
}

我在这里关注官方 Java 教程:http://java.sun.com/docs/books/tutorial/essential/io/check.html

Answer 1

查看superordinate chapter .它说:

This section is being updated to reflect features and conventions of the upcoming release, JDK7. You can download the current JDK7 Snapshot from java.net. We've published this preliminary version so you can get the most current information now, and so you can tell us about errors, omissions, or improvements we can make to this tutorial.

所以这是关于 java 7 的。