Usage of API documented as @since 1.7+ more... (Ctrl+F1等創建文件時遇到的問題

1.Usage of API documented as @since 1.7+ more... (Ctrl+F1 File ->Project Structure->Project Settings -> Modules -> (需要修改的工程名稱) -> Sources -> Language Level->選7以上的版本 參考:http://blog.csdn.net/jdjdndhj/ar
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