A. false
B. default
C. _object
D. a-class

A. 3 / 2
B. 3 < 2
C. 3 * 4
D. 3 << 2
E. 3 * 22
F. 3 <<<2

A. The MyCircle class is full encapsulated.
B. The diameter of a given MyCircle is guaranteed to be twice its radius.
C. Lines 6 and 7 should be in a synchronized block to ensure encapsulation.
D. The radius of a MyCircle object can be set without affecting its diameter.

A.A
B.B
C.C
D.D

A. The tag handler must extend body Tag.
B. The do After Body method is NOT called.
C. The set Body Content method is called.
D. It is never legal to return EVAL_BODY_BUFFERED from do Start Tag.

A. The code will not compile.
B. The output is Caught Exception
C. The output is Caught IO Exception
D. The program executes normally without printing a message.

A. Compilation will succeed.
B. Compilation will fail at line 5.
C. Compilation will fail at line 6.
D. Compilation will fail at line 14.
E. Compilation will fail at line 17.

A. The code compiles and “s=” is printed.
B. The code compiles and “s=null” is printed.
C. The code does not compile because Strings is not initialized.
D. The code does not compile because because Strings cannot be referneed.
E. The code comiles.butt a NullPointerException is thrown when toString is called.

A. Char ch = “a”；
B. char ch = “”；
C. char ch = “café”；
D. char ch = “ucafe”；
E. char ch = “ucafe’；
F. char ch = “u10100’；
G. char ch = （char） true；

A. （a = = c）
B. （d = = c）
C. （b = = d）
D. （a = = b）
E. （b = = c）
F. （d == 10.0）

A. The program prints “lava”.
B. The program prints “java”.
C. An error at line 7 causes compilation to fail.
D. Complication succeeds but the program throws an exception.