A.A class’s finalize（） method CANNOT be invoked explicitly.
B.super.finalize（） is called implicitly by any overriding finalize（） method.
C.The finalize（） method for a given object is called no more than once by the garbage collector.
D.The order in which finalize（） is called on two objects is based on the order in which the two objects became finalizable.

A.java MainClass if run from the /apps directory
B.java com.company.application.MainClass if run from the /apps directory
C.java -classpath /apps com.company.application.MainClass if run from any directory
D.java -classpath . MainClass if run from the /apps/com/company/application directory
E.java -classpath /apps/com/company/application：. MainClass if run from the /apps directory

A.If the compile is successful， Utils.class is added to the source directory.
B.The compiler returns an invalid flag error.
C.If the compile is successful， Utils.class is added to the classes directory.
D.If the compile is successful， Utils.class is added to the bigProject directory.

A./test/Chess.class
B./home/bob/Chess.class
C./test/games/Chess.class
D./usr/lib/games/Chess.class
E./home/bob/games/Chess.class

A.import utils.*；
B.static import utils.*；
C.import utils.Repetition.*；
D.static import utils.Repetition.*；
E.import utils.Repetition.twice（）；
F.import static utils.Repetition.twice；

A.Compilation fails due to an error in line 23.
B.Compilation fails due to an error in line 29.
C.A ClassCastException occurs in line 29.
D.A ClassCastException occurs in line 31.
E.The value of all four objects prints in natural order.

A.Remove line 14.
B.Replace line 14 with "int i = iter.next（）；".
C.Replace line 13 with "for （int i ： intList） {".
D.Replace line 13 with "for （Iterator iter ： intList） {".
E.Replace the method declaration with "sum（List intList）".

A.public int compareTo（Object o）{/*more code here*/}
B.public int compareTo（Score other）{/*more code here*/}
C.public int compare（Score s1，Score s2）{/*more code here*/}
D.public int compare（Object o1，Object o2）{/*more code here*/}

A.The hashCode method for a given class can be used to test for object equality and object inequality for that class.
B.The hashCode method is used by the java.util.SortedSet collection class to order the elements within that set.
C.The hashCode method for a given class can be used to test for object inequality， but NOT objecte quality， for that class.
D.The only important characteristic of the values returned by a hashCode method is that the distribution of values must follow a Gaussian distribution.
E.The hashCode method is used by the java.util.HashSet collection class to group the elements within that set into hash buckets for swift retrieval.

A.The equals method does NOT properly override the Object.equals method.
B.Compilation fails because the private attribute p.name cannot be accessed in line 5.
C.To work correctly with hash-based data structures,this class must also implement the hashCode method.
D.When adding Person objects to a java.util.Set collection,the equals method in line 4 will prevent duplicates.

A.The value "4" is printed at the command line.
B.Compilation fails because of an error in line 5.
C.Compilation fails because of an error in line 9.
D.A NullPointerException occurs at runtime.
E.A NumberFormatException occurs at runtime.
F.An IllegalStateException occurs at runtime.