A SCJP Question

[u4ria]

i answered c for da below question:
pubic class ScjpTest {
private int x;
private int y;
public synchronised void setX (int i) (x=1
public synchronised void setY (int i) (y=1
public synchronised void setXY (int i) (setX(i);setY(i)
public synchronised Boolean check() (return x !=y
)
Under which conditions will check () return true when called from a different class?
a check() can never return true
b check() can return true when setXY is called by multiple threads
c check() can return true when multiple threads call setX and setY separately
d check() can only return true if ScjpTest is changed to allow x and y to be set separately
NE1 can help wif dis question?
thz
rgs,
u4ria

[Jose Botella]

check can never return true
why you din't compile it?

[Jane Griscti]

u4ria
Please read the JavaRanch Name Policy and re-register using a name that complies with the rules.
Thanks for your cooperation.
------------------
Jane Griscti
Sun Certified Programmer for the Java� 2 Platform

[Ragu Sivaraman]

Answers would be A and D isnt?