java.util.Arrays中不能正常工作的Java 8 [英] java.util.Arrays not working java 8

问题描述

我最近更新到我的电脑日食使用Java 8。我有previously一直在使用Java 7中最初的更新似乎正常工作，因为我可以编译和运行一个简单的的Hello World -program。然而，当我开始导入我一直在努力，所使用的类 java.util.Arrays中的 previous项目中，我得到了像<$ C $错误C>阵列无法解析。我一直有一个类似的问题的PriorityQueue 类说，

  

类型了java.util.Comparator 不能得到解决。这是间接要求的.class 文件中引用。

解决方案

我今天碰见真正类似的东西。不知道如果同样的问题，但我所做的是：

打开项目资源管理

右键单击项目

查找配置构建路径

在打开的窗口中，选择库标签

向下滚动到JRE系统库（有我旁边一个红色错误符号），然后单击库中。

在右上方，选择Edit按钮

选择备用JRE，然后挑（你的情况）的Java 8

I recently updated to using Java 8 on my computer for eclipse. I had previously been using Java 7. At first the update seemed to work fine as I could compile and run a simple hello world-program. However, as I began to import previous projects that I had been working on that used the class java.util.Arrays, I got an error like Arrays could not be resolved. I have been having a similar problem with the PriorityQueue class saying that,

The type java.util.Comparator cannot be resolved. It is indirectly referenced from required .class files.

解决方案

I ran into something really similar today. Not sure if its the same issue, but what I did was:

Open project explorer

Right click the project

Find "Configure Build Path"

In the window that opens, select the "Libraries" tab

Scroll down to JRE System Library (there was a red error symbol next to mine) and click the library.

In the top right, select the Edit button

Choose "Alternate JRE" and then pick (in your case) java 8

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