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faust18 [17]
3 years ago
11

Given the following classes and their objects:

Computers and Technology
1 answer:
Andrej [43]3 years ago
3 0

Answer:

The answer is "Option b"

Explanation:

In the given code three-class C1, C2, and C3 are declared, in which C2  and C3 extend the class C1. In the next line, C2 and C3 object are created, that is c2 and c3. and in the last line c2 class object holds two-class C2, C1, and one object c3 value, this code will give runtime error because it can't cast object from sibling class, and wrong choices can be defined as follows:

  • In option a, It is not correct because it can't cast c3 object into c2 object.
  • In option c, It is not correct because it performs multiple casting in nested forms.
  • In option d, It is wrong because the statement is not correct.
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Discuss two advantages and two disadvantages of agile methods
Fofino [41]

Answer:

Two advantages of the agile methods are:

  • The agile method require less documentation process as compared to waterfall model and saves maximum time and money. It basically reduces the efforts and the amount of work.
  • In agile method, there is always high customer satisfaction present. In agile method, it is easy to modify in the data as compared to the waterfall model. The customers and developers always interact with each other as the interaction is very important for the good results in the project.

Two disadvantages of the agile methods are:

  • For the large and complex projects, sometimes it is difficult to determine the requirements in the software development as projects are easily go off track.
  • There is less predictability and the projects are easily messed up if the projects requirement are not clear by the customer end.

6 0
3 years ago
"What Search Network text ad component provides up to three fields of 30 characters each?"
Alex_Xolod [135]

Answer:

The headline component is the correct answer.

Explanation:

The headline component provides their user a better experience to modify the text or fonts of the heading and simple text with that links which is inline to those pages that displaying the topics, articles and also the discussions. This is also used for the particular search network text and also for the google ads components. So, that's why the following option is correct.

7 0
3 years ago
Which tables and fields would you access to determine which book titles have been purchased by a customer and when the order shi
enyata [817]

Answer:

To determine which book titles have been purchased by a customer and when the order shipped the following tables and fields would be used.

Table:      

  • CUSTOMERS

Fields

  • Customerno

Table

  • ORDERS

Fields:

  • Orderno
  • Shipdate
  • Customerno

Table:

  • ORDERITEMS

Fields:

  • Orderno

Table:

  • BOOKS

Fields

  • isbn
  • title

BOOKS table contains field like title of the books, so this will help in finding which book titles have been purchased.

CUSTOMERS table keeps information about customers that purchasing an ordering the books. The customerno uniquely identifies each customer so that the order information can be found using the customerno of a specific customer.

ORDERITEMS keeps information about orders via orderno

ORDERS table will keep track about the shipment of orders. Orderno identifies each order, shipdate will help determine when an order is shipped.

7 0
3 years ago
What type of maintenance can prevent the computer from breaking?
qwelly [4]
<span>The answer is, "Load anti-virus software".
</span>Anti-virus softwares are used to prevent computer from virus, as it name shows that are anti-virus means they prevent from virus. Anti virus softwares are also known as anti-malware software. These software work in such a way that they <span>prevent, detect and then remove viruses or </span><span>malicious software.</span>
3 0
3 years ago
Read 2 more answers
A restaurant chain has several store locations in a city (with a name and zip code stored for each), and each is managed by one
bazaltina [42]

Answer:

The restaurant chain system consist of restaurant id, name, zipcode, manager id, menu list.

Manager; manager id, name, phone no, and store.

Menu; menu id, type, items and description.

Items; item id, price and description.

Explanation:

Please look at the attachment for the E. R diagram.

5 0
3 years ago
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