在 Eclipse 中设置 JDK [英] Setting JDK in Eclipse
问题描述
我有两个 JDK,分别用于 Java 6 和 7.
I have two JDKs, for Java 6 and 7.
我想同时使用两者来构建我的项目.最初我们只针对 1.6 构建.我在我的项目设置中看到我可以选择 1.5、1.6 1.7 作为编译器级别.
I want to build my project using both. Initially we only built against 1.6. I see in my project setting I can select 1.5, 1.6 1.7 as the compiler level.
这些选项是如何添加到 IDE 中的?我从未安装过 Java 1.5.假设我想要 Java 1.4.我怎样才能让它出现在列表中?我在 IDE 首选项中添加了两个不同的 JRE,但下拉列表中没有显示这些.
How are these options added to the IDE? I never installed Java 1.5. Suppose I wanted Java 1.4. How would I get this to appear in the list? I have added two different JREs in my IDE preferences, but these are not what appears in the dropdown.
推荐答案
您可以在 Window 中管理可用编译器的列表 ->首选项 ->Java ->安装了 JRE 的标签
.
在项目构建路径配置对话框中,在libraries选项卡下,您可以删除JRE System Library
的条目,点击Add Library
并选择安装的JRE编译.某些编译器可以配置为在后级编译器版本下进行编译.我认为这就是您看到附加版本选项的原因.
In the project build path configuration dialog, under the libraries tab, you can delete the entry for JRE System Library
, click on Add Library
and choose the installed JRE to compile with. Some compilers can be configured to compile at a back-level compiler version. I think that's why you're seeing the addition version options.
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