What is the exception thrown when an error occurs during serialization or deserialization?
a) SerialException
b) DeserialException
c) SerializationException
d) DeserializationException
e) c and d, respectively
c) SerializationException
You might also like to view...
Java uses the type ____ to store real numbers (numbers with decimal points).
A. short B. long C. double D. integer
Correct statements of similarities and differences between calling user defined functions and library functions are:
a. Similarity: A call to either requires the function name followed by parenthesized comma separated list of arguments that match the prototype in number and type.
b. Difference: Library functions require inclusion of header files for declarations but user defined functions do not require any declaration before use.
c. Similarity: Either library or user defined functions may be value returning or void functions.
d. Difference: Library functions all provide a return value, user functions must be void functions.
e. Difference Library function declarations (sometimes definitions) come from #include
The ER diagram in Figure 17.13 shows only entities and primary key attributes. The absence of recognisable named entities or relationships is to emphasize the rule-based nature of the mapping rules described in Step 2.1 of logical database design.
Answer the following questions with reference to how the ER model in Figure 17.13 maps to relational tables.
(a) How many relations will represent the ER model?
(b) How many foreign primary keys are mapped to the relation representing X?
(c) Which relation(s) will have no foreign key?
(d) Using only the letter identifier for each entity, provide appropriate names for the
relations mapped from the ER model.
(e) If the cardinality for each relationship is changed to one-to-one with total participation
for all entities; how many relations would be derived from this version of the ER model?
What Windows feature does Gedit utilize to store or retrieve text?
A. command line B. clipboard C. copy paste D. file explorer