Placement Papers - MCQ Practice Questions

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

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

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

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.

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.

Let CP = 100. Marked price = 140. After 20% discount: SP = 140 × 0.80 = 112. Profit = 12%

A = P(1 + R/100)^T = 5000(1 + $\frac{8}{100}$)^2 = 5000(1.08)^2 = 5000 × 1.1664 = 5832

(x-2)(x-3) = 0, so x = 2 or x = 3

Let number = 100. After 30% increase = 130. After 20% decrease = 130 × 0.80 = 104. Net change = 4% increase

A:B = 2:3 (multiply by 4) = 8:12. B:C = 4:5 (multiply by 3) = 12:15. So A:B:C = 8:12:15

Pattern: 1×2, 2×3, 3×4, 4×5, 5×6, 6×7 = 42

From statements: A > B > D and C > D. D is shorter than all others, so D is shortest

Pattern: 3×2-1=5, 5×2-1=9, 9×2-1=17, 17×2-1=33, 33×2-1=65

Each letter is shifted by +1 in alphabet. REASONING becomes SFBTPOJOH

Each letter is replaced by its position in alphabet (A=1, B=2... Z=26). SHORT = 19-8-15-18-20

'Good' should be 'well' when describing how something is done (adverb usage)

The 'final' keyword prevents a class from being subclassed or inherited

ArrayList provides O(1) random access, while LinkedList provides O(n) access

z-index controls the stacking order of overlapping elements on a webpage

Let number = x. 30% of x = 45. 0.30x = 45. x = $\frac{45}{0}$.30 = 150