SCDCD(310-081)單項(xiàng)選擇題每日一練(2020.04.13)

A. It is impossible to determine the deepest nesting depth because it is impossible for tag handlers that extend SimpleTagSupport to communicate with their parent and child tags
B. Create a private non-static attribute in the tag handler class called count of type int initialized to      oIncrement count in the doTag method. If the tag has a body， invoke the fragment for that body. Otherwise， output the value of count
C. Start a counter at 1. Call getChildTags（）. If it returns null， output the value of the counter.      Otherwise， increment counter and continue from where getChildTags（） is called. Skip      processing of the body.
D. If the tag has a body， invoke the fragment for that body. Otherwise， start a counter at 1. Call      getParent（）. If it returns null， output the value of the counter. Otherwise， increment the counter      and continue from where getParent（） is called.

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. foo has the value of “”
B. foo hast he falue of null.
C. foo has the value of “blue”
D. foo has the value of “green”
E. An exception is thrown.
F. The code will not compile.

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 176.

A. The program runs and prints nothing.
B. The program runs and prints “Equal”.
C. An error at line 5 cause compilation to fail.
D. The program runs but aborts with an exception.