我已经更新了我的系统,然后用下面的命令向Ubuntu添加了一个第三方PPA。但这就是我得到的:Reading package lists... DoneReading state information... Done
Package oracle-java10-installer is not available, but is referred to by
Product Version = NetBeans IDE 8.1 (Build 20180424-debian-8.1)
Operating System = LinuxClasspath = /usr/lib/jvm/java-8-openjdk-amd64/jre/lib/resources.jar:/usr/lib/jvm/java-8-openjdk-amd64/jre