如何下載 JDK ![](https://i.imgur.com/knFQrNw.png) ====== https://www.oracle.com/java/technologies/downloads/ 先在官網下載 ![](https://i.imgur.com/P9zkOgd.png) ![](https://i.imgur.com/utoZRBI.png) ![](https://i.imgur.com/FtMIyU8.png) ![](https://i.imgur.com/wncDCC6.png) 方法參考 https://www.kjnotes.com/devtools/35