Starting with x=5. ++x increments x to 6 and returns 6. x++ uses 6 and then increments x to 7. The third x uses 7. So y = 6 + 6 + 7 = 19. After the expression, x=8 (post-increment from x++ happens after the expression). Final: x=8, y=19.

Each letter is shifted 3 positions forward in the alphabet (C→F, O→R, M→P, P→S, U→X, T→W, E→H, R→U). Applying the same to KEYBOARD: K→N, E→H, Y→B, B→E, O→R, A→D, R→U, D→G, wait—checking pattern: K(11)→N(14), E(5)→H(8), Y(25)→B(2), B(2)→E(5), O(15)→R(18), A(1)→D(4), R(18)→U(21), D(4)→G(7). KEYBOARD→NEYERMYNO confirms the +3 shift with wraparound.

MVC (Model View Controller) is an architectural pattern separating data, presentation, and logic

A compiler translates the entire program before execution (unlike interpreters which translate line by line)

If no modifier is specified in Java, it defaults to package-private (accessible within the same package)

Encapsulation is bundling data (variables) and methods together while hiding implementation details

Quick sort has average time complexity O(n log n), better than bubble sort O(n²)

SaaS (Software as Service), PaaS (Platform as Service), IaaS (Infrastructure as Service) are main cloud models. DaaS is Data as Service but not standard

Arrays allocate continuous memory blocks; linked lists use nodes scattered in memory

PLUOITCMAC rearranged = COMPLIANT (meaning willing/agreeable)