Sorry guys,I am on Kali Linux now,I can't input Chinese,sorry about that.
Links:
JDK- http://www.oracle.com/technetwork/java/javase/downloads/jdk8-downloads-2133151.html
Eclipse - http://mirrors.neusoft.edu.cn/eclipse/oomph/epp/2020-03/R/eclipse-inst-linux64.tar.gz