2011年JAVA认证模拟题第二阶段（17）

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　　Q49.FlowLayout is the default layout manager for which of the following containers. Select all valid answers?　　a. Panel
　　b. Applet
2 _9 |9 I! x7 V: Y　　c. Frame
' B7 V7 I; Y. B$ f　　d. Dialog
8 M8 A) e5 h) F( y　　Q50.Using a FlowLayout Manager, which of the following is the correct way to add a component reference b y the variable “c” to a container.
3 i/ K0 ?" T7 G% P4 I+ z　　a. add(c)
, H: _: i1 j8 \) t# B1 M　　b. c.add()
9 p4 O; ^0 Y" A  v* U+ ?* A: j　　c. add(“Center”,c)
　　d. set(c)
) `# [4 @4 I; ]9 w4 G# R　　Q51.Given the following code snippet
4 A9 i$ S  z' r3 P! T　　1. class A {
- C2 u% |  p. J" S. p　　2. public void method(int a, float b) {
. b/ W0 _+ U0 X+ y, O; w　　3. // some declaration and etc.
0 J' s4 e) ~* q: e: z2 t2 |　　4. ｝
. @4 p: Y3 E  k5 J　　5. ｝
2 R4 e1 j) n% A4 O: I) u# s　　6. public class B extends A {
! n. h  W5 W1 l8 m" Y, k" e( i　　7. //Comment here ?
　　8. ｝
5 J- \5 |+ N$ S% h" e% Q　　In class B what all methods can be placed in (// Comment here ?) individually ?
* T8 Z! Q' x$ X$ v; p　　a. void method(int i, float a)
9 \2 z( o$ w2 k5 o/ n5 ~' M4 d　　b. public void method(int i, float f)
, ~1 u8 m4 z8 I& i　　c public void method()
" G' f! W/ z& J' ?　　d. protected int method(float f, int b)
" m) G3 z, A$ i& Z; ^* ?, b　　49. ab
+ U. z  V. Z6 q! e% ^8 a  S. q& j, H　　50. a
　　51. bcd