I added a Student.jar into my Build Path in my eclipse like this- Right click on the project->BuildPath->Configure Build Path->Libraries->Add
dllimport
uibezierpath
hortonworks-data-platform
window-handles
opensql
wechat
clamp
id3v2
interior-mutability
flymake
pep
squirrel-sql
katalon
r-raster
mercurial-evolve
atmosphere
r2winbugs
azure-billing
c89
eregi
castcompanionlibrary
blaze
manual
workflow-activity
forever
long-double
printer-control-language
phpstorm-2019
uniform-interface
order-of-execution