For the Coffee Cup modeling tutorial follow this link Coffee Cup - Modeling Tutorial
Step 1: We need to draw a line using the Line Tool. Just select the line tool and left click on the screen until you get something like in the bellow image, right click to end the line.
Step 3: With the line selected apply a Lathe modifier from the Modifier List, don't worry about the outcome, we'll fix that in the next step.
Step 4: With the Lathe modifier selected check the "Weld Core" box set the Segments to 64 and click on Min under the Align section.
Thanks for reading this tutorial.