SCJP程序員認(rèn)證考試單項選擇題每日一練(2020.05.22)

A. Line 5 will not compile， because void methods cannot be overridden.
B. Line 12 will not compile， because there is no version of test（） that rakes a charargument.
C. The code will compile but will throw an exception at line 12.
D. The code will compile and produce the following output： I am an int.
E. The code will compile and produce the following output： I am a String.

A.Since the method foo（） does not catch the exception generated by the method baz（）， it must      declare the RuntimeException in its throws clause.
B.A try block cannot be followed by both a catch and a finally block.
C.An empty catch block is not allowed.
D.A catch block cannot follow a finally block.
E.A finally block must always follow one or more catch blocks.

A. The value of s is 14-dic-2004.
B. The value of s is Dec 14， 2000.
C. An exception is thrown at runtime.
D. Compilation fails because of an error in line 13.

A. Garbage collection cannot be forced.
B. Call System.gc（）.
C. Call System.gc（）， passing in a reference to the object to be garbage collected.
D. Call Runtime.gc（）.
E. Set all references to the object to new values（null， for example）.

A. Throws Exception.
B. Catch （Exception e）.
C. Throws RuntimeException.
D. Catch （TestException e）.
E. No code is necessary.