Q160 Which are keywords in Java?+ {- A5 p* j0 j
A NULL * m# W; g, S5 _( W6 g B sizeof 8 X' K' I$ K8 [; Q$ |) g6 Q. p9 S0 z C friend' Q6 I9 _ o! n+ j* `
D extends 6 {- p1 O0 R/ z; y" v E synchronized. z) C7 ?( r) I
Q161 Which of the following thread state transitions are valid?- s* y8 j f3 g' ?
A From ready to running. 2 A) T- J9 q8 h B From running to ready. : Y8 l7 @ h' {" V C From running to waiting.1 \# @6 b, z' N" S5 h" D
D From waiting to running. 6 J* y: K7 P- w$ b" j5 i( u E From waiting to ready. " A. u( l2 O/ B3 I+ b F From ready to waiting.0 R0 `; R$ t+ @1 O) c( c. O
Q162 What is wrong with the following program?3 s0 w7 B! x! b" q
' s+ i+ n: i; S; {; n class Question { String s = “abc”;
</p> public static void main (String [] args). t. v9 v' N6 T# f
{; n9 z4 d1 L. M- ^: B3 T1 V/ e- h! V
System.out.println(s);6 V8 J9 E$ @: M# T
｝$ T: Q" Z- S, u& l1 z* o6 o( `
｝ / @$ N0 V) Q6 P6 ^$ X$ |/ H- g1 P A Nothing is wrong with the program T% f4 O Y' i8 d" d. ~ B main() cannot be declared public because Question is not public.+ t) O" d: i, e3 D. [* D! p# Z0 f
C Because main() is static, it may not access non-static s without a reference to an instance of Question. " }8 f v4 n% s ?; | D The main() argument list is incorrect.6 l3 i2 M& d8 p3 U/ G' H0 u/ W
Q160 DE # I h+ q: E. [ Q161 ABCE) u; D/ @. N0 v4 o4 m$ d8 y
Q162 C
发表于 2012-8-4 12:33:16
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