eclipse设置源级别 [英] eclipse set source level

问题描述

我有一个为jdk 7构建的项目，但我想扩展其对jdk 6用户的兼容性。我已经将编译器编译级别设置为1.6，但是项目正常编译，并且由于在java 7之前没有将方法revalidate添加到java中而无法在1.6 jre上运行（并且编译器没有给出任何警告关于这一点！）我怎样才能将源级别设置为1.6？我可以在netbeans中做到这一点，无论如何在eclipse中如何做到这一点？

I have a project that I built for jdk 7, but I want to expand its compatibility for jdk 6 users as well. I have set the compiler compilance level to 1.6, but the project compiles normally, and fails running on a 1.6 jre due to the fact that the method revalidate was not added to java until java 7. (and the compiler didn't give ANY warnings about this at all!) How can I set the source level to 1.6 as well? I could do this in netbeans, any way on how to do this in eclipse?

推荐答案

在项目属性 - > Java Build Path / Libraries选项卡中，确保您有JRE System Library 6 ennvironment

In project properties->Java Build Path/Libraries tab make sure you have JRE System Library 6 ennvironment

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