add yes option. https://launchpad.net/~openjdk-r/+archive/ubuntu/ppa
add yes option. https://launchpad.net/~openjdk-r/+archive/ubuntu/ppa

ryumei/IaCStudyRoom2016a,ryumei/IaCStudyRoom2016a,ryumei/IaCStudyRoom2016a,ryumei/IaCStudyRoom2016a