A) force justified.
If you open up Word (or probably any word processor) and hover over the alignment options in the ribbon (or format the paragraph), it tells you what each one is, and the option that ensures the characters are spread evenly between the margins is labeled "justified."
An internal node is a node which carries at least one child or in other words, an internal node is not a leaf node.
Answer:
public: virtual void print()=0;
Explanation:
An abstract class contains a pure virtual function. Pure virtual class cannot be instantiated but it can be subclassed and the subclass can provide an implementation of the function.
A virtual function declaration in the class is preceded by the virtual keyword. For example, virtual void print();
A pure virtual function declaration is followed by '=0;'
public: virtual void print()=0;
The correct answer of the given question above would be option D. A wet-carpet cleaner that carries it's own water supply has water pressure created by a MOTOR-DRIVE PUMP. T<span>his product is easy to use, strong, and highly durable. Hope this answers your question. Have a great day!</span>
For the view of Exercise 4.18, explain why the database system would not allow a tuple to be inserted into the database through this view.
For reference
For the database of Figure 4.12, write a query to find the ID of each employee with no manager. Note that an employee may simply have no manager listed or may have a null manager. Write your query using an outer join and then write it again using no outer join at all.
OUTER JOIN
select e.ID from employee e left outer join manages m on e.ID = m.ID
where m.manager_id is null;
NO OUTER
select e.ID from employee e where e.ID not in (select m.ID from manages m) or e.ID in (select m.ID from manages m where m.manager_id is null);
