下載JDK 8 安裝 https://www.oracle.com/tw/java/technologies/javase/javase-jdk8-downloads.html 安裝JDK 安裝brew /bin/bash -c "$(curl -fsSL https://raw.githubusercontent.com/Homebrew/install/HEAD/install.sh)" 安裝netbeans brew install --cask netbeans 取得JDK 目錄 /usr/libexec/java_home -V EX: /Library/Java/JavaVirtualMachines/jdk1.8.0_271.jdk/Contents/Home 編輯netbeans config vi /Applications/NetBeans/Apache\ NetBeans\ 12.4.app/Contents/Resources/NetBeans/netbeans/etc/netbeans.conf netbeans_jdkhome="/Library/Java/JavaVirtualMachines/jdk1.8.0_271.jdk/Contents/Home" :wq 在執行netbeans Done