Open Essay1234 opened 7 years ago
用java1.8的书,编写java1.9的代码,为何呢? read the book with jdk1.8,but code with jdk1.9,why do this?
用java1.8的书,编写java1.9的代码,为何呢? read the book with jdk1.8,but code with jdk1.9,why do this? I have the same problem
用java1.8的书,编写java1.9的代码,为何呢? read the book with jdk1.8,but code with jdk1.9,why do this?
Because source code is upgraded to JDK 1.9. You can show log of git and checkout out from commit is not merged code upgraded
workaround: install jdk9 from oracle and compile the sources.