在eclipse運行jdk12預覽特性:
右擊項目---> "Properties" ---> "Java Compiler" ---> 勾選"Enable project specific stetings" ---> 去掉"Use default compliance settings" ---> 勾選"Enable preview features"
右擊項目---> "Properties" ---> "Java Compiler" ---> 勾選"Enable project specific stetings" ---> 去掉"Use default compliance settings" ---> 勾選"Enable preview features"
2019-07-31