Welcome to AutoCAD Tip Blog.
In this posts, I will share how to join Lines into one object in AutoCAD 2018 with everyone. Really sample to do that. You only use Join command or Pedit command.
With Join command: JOIN(J) > Enter > Select lines need to join > Enter.
With Pedit command: PE > Enter > M > Enter > Select lines need to join > Enter > Y > Enter > Select “Join” option > Enter > Enter.