找不到java.nio.file包

我的 java编译器找不到 java.nio.file包.考虑：

import java.nio.file.*;
public class Test {
    public static void main(String[] args) { 
        Path currentRelativePath = Paths.get("");
    }
}

编译

bash$javac Test.java

给

Test.java:1: package java.nio.file does not exist
import java.nio.file.*;
                ^
Test.java:5: cannot find symbol
symbol  : class Path
location: class Test
    Path currentRelativePath = Paths.get("");
    ^
Test.java:5: cannot find symbol
symbol  : variable Paths
location: class Test
    Path currentRelativePath = Paths.get("");
                               ^
3 errors

我正在使用Ubuntu 12.04,我想我已经安装了JDK 7(见：package java.nio.file does not exist)

bash$java -version
java version "1.7.0_25"
OpenJDK Runtime Environment (IcedTea 2.3.10) (7u25-2.3.10-1ubuntu0.12.04.2)
OpenJDK 64-Bit Server VM (build 23.7-b01,mixed mode)

解决方法

你完全可以使用java 1.7,但是javac 1.6甚至是1.5

也许你可以使用

sudo update-alternatives --config javac

配置它.如果不能选择1.7,那么需要升级JDK包.