2011年JAVA认证模拟题第二阶段（16）
Q46.What is the output of the following piece of code 1. int x = 6;2. double d = 7.7;
3. System.out.println((x>d) ? 99.9 ： 9);
a. 9
b. 9.0
c. 99.9
d. Nothing, an ArithmeticException is thrown at line 3.
Q47.Which of the following are legal methods for the String class ?
a. length()
b. toUpper()
c. toUppercase()
d. equals()
Q48.Consider the following
1. class A extends Integer {
2. int x = 0;
3. ｝
a. The code will compile correctly.
b. The code will not compile because Integer class is final.
c. The code will not compile because A class doesn't have a constructor.
d. The code will compile but an ArithmeticException at runtime.
46. b
47. ad
48. b
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