2011年JAVA认证模拟题（54）
Q160 Which are keywords in Java?A NULL
B sizeof
C friend
D extends
E synchronized
Q161 Which of the following thread state transitions are valid?
A From ready to running.
B From running to ready.
C From running to waiting.
D From waiting to running.
E From waiting to ready.
F From ready to waiting.
Q162 What is wrong with the following program?
class Question { String s = “abc”;
2011年JAVA认证模拟题（54）
</p> public static void main (String [] args){
System.out.println(s);
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A Nothing is wrong with the program
B main() cannot be declared public because Question is not public.
C Because main() is static, it may not access non-static s without a reference to an instance of Question.
D The main() argument list is incorrect.
Q160 DE
Q161 ABCE
Q162 C
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