Two-dimensional (2D) shapes are completely flat. They cannot be picked up. A polygon is a 2D shape with straight sides that meet at vertices. Polygons have names that show the number of sides they ...

Strings are immutable: their value cannot be changed after they are created. When created using String s = "something" they are stored in a special pool in which the same string is stored only once. / ...

Student Management → Add, list, update, deactivate students. Course Management → Add, list, update, deactivate courses; search & filter. Enrollment & Grading → Enroll students, enforce credit limits, ...

[Originally published 2/27/26; Updated 3/31/26, 4/3/26]: After “leaking” the dates and locations for his 2026 fall tour last month, Billy Strings has officially confirmed the details of the 20-show ...