
右击有红色叹号的java project Build path>>Configure Build Path

Resource >> java build path Libaries 点击如下图所示的JRE System ....点击右边的remove

删除后,再点击add library

点击jre system library >>next

finish>>ok


右击有红色叹号的java project Build path>>Configure Build Path

Resource >> java build path Libaries 点击如下图所示的JRE System ....点击右边的remove

删除后,再点击add library

点击jre system library >>next

finish>>ok

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