Q43.What is written to the standard output given the following statement 1. System.out.println(4 | 7); a. 4
1 s! p c2 C& I' m4 n3 p b. 5
2 C! q5 ~" d5 K7 b4 c0 Y8 W' r! Q c. 6
4 H* V& d2 D3 T9 f; A d. 7
; H+ i6 T% ]4 x& }9 P7 g Q44.What expressions are true concerning the following lines of code?/ Q. p& x! Z. A F W; k
1. int[] arr = {1, 2, 3｝;; ~! J) W1 {$ m" D% V Q
2. for(int i = 0 ; i < 2; i++)
3 J6 W9 J3 M, t+ Q8 j7 R 3. arr = 0;
" a2 @6 o) s y) {9 v' V# C1 F Select all valid answers.7 _" H7 Q& Q l8 @7 T
a. arr[0] == 0
3 _5 e' p1 c; W. |8 C9 [$ ^ b. arr[1] == 2
& x! y2 N. E) w- q c. arr[1] == 0% B V% N4 n6 H# f
d. arr[2] == 3
2 E2 h/ t! [+ `5 t Q45.What will the following block of code write to standard output when it is executed?4 A4 s; L* ]- f. {( [3 o# K
1. int i = 3;
2 \+ q/ c4 U, e6 z 2. int j = 0;
3 i: @1 |# K0 b: z& e f 3. double k = 3.2;$ r+ J% Y2 }4 [1 L3 {
4. if (i < k)3 U' l" p1 ?) a* p9 ^3 g
5. if (i == j)
* l( l, e; A* i 6. System.out.println(i);/ Q1 W- w7 K% ^9 U
7. else
5 B+ `7 S! a2 I 8. System.out.println(j);
2 n0 K7 b& @0 w% z 9. else9 h: l+ M+ y& ^
10. System.out.println(k);9 S' U9 Y* V, {4 [1 y
a. 3
6 ~+ h3 b3 B8 c0 R+ e b. 0
) B1 U8 s" O& H4 q( U; S( O! g, o c. 3.2
9 o/ s. u( m3 E& V5 c! t d. None of these.
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44. acd
# @- ~; _3 ]- V+ d2 t3 z 45. b |
发表于 2012-8-4 12:33:16
