1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
zimovet [89]
2 years ago
9

Assume that you have an ArrayList variable named a containing 4 elements, and an object named element that is the correct type t

o be stored in the ArrayList.
Which of these statements adds the object to the end of the collection?1. a[3] = element;
2. a.add(element;
3. a[4] = element;
4. a.add(element);
Computers and Technology
1 answer:
jonny [76]2 years ago
7 0

Answer:

Option (4) is the correct answer.

Explanation:

In Java programming language ,array collection starts from 0 index location and ends in a size-1 index location. So to access the last elements the user needs to use a[Size-1] statement. so to modify the value of the last location of the array the user needs to use "a[size-1]= element;".

But when the user wants to add some new value to the end of the array list collection then he needs to use the statement--

a.add(element); //where add is a function, element is a value and a is a array list object.

Another option is invalid because--

  • Option 1 is not the correct because "a[3]=element;" modify the value of the 3rd element of the array.
  • Option 2 gives a compile-time error because add functions bracts are not closed.
  • Option 3 gives the error because a[4] gives the location of the 5th element of the array but the above question says that a is defined with 4 elements.
You might be interested in
Keeping in mind the role the order of precedence plays in equations, what would Excel display as the result of the following equ
Arlecino [84]
Keeping in mind the role the order of precedence plays in equations, what would Excel display as the result of the following equation?

=(24+75)/(6*3)
=99/18
= 5.5
18)99.0.
90.0
9.0

D. 5.5



6 0
3 years ago
DES is a commonly used symmetric encryption algorithm, developed in the mid-1990s by the American government in conjunction with
In-s [12.5K]

Answer:

False

Explanation:

The DES encryption standard is believed to be weakened by the American government by containing shortened key lengths and 'S-boxes' of unknown origin.

5 0
2 years ago
One of the disadvantages of cable technology is that: while it works well for television signals, it is ineffective for data tra
nignag [31]

Answer:

systems used by many providers require customers to share bandwidth with neighbors

Explanation:

One of the disadvantages of cable technology is that systems used by many providers require customers to share bandwidth with neighbors. This ultimately causes many problems since cables would need to be extended to reach every single user that will be sharing the bandwidth. This would mean cables all over the place. Also, it is very difficult to limit the bandwidth per person, meaning that if anyone is using up all of the bandwidth through the cable, the rest of the individuals connected would not have the bandwidth that they need or are paying for.

7 0
2 years ago
Fill in the blank with the correct response.
Verizon [17]

Answer:

File structure.

Explanation:

HTML is an acronym for hypertext markup language and it is a standard programming language which is used for designing, developing and creating web pages.

Generally, all HTML documents are divided into two (2) main parts; body and head. The head contains information such as version of HTML, title of a page, metadata, link to custom favicons and CSS etc. The body of the HTML document contains the contents or informations of a web page to be displayed.

The file transfer protocol (FTP) client component of a full-featured HTML editor allows you to synchronize the entire file structure. Therefore, when you wish to share your entire html document over a network server such as a FTP client, you should use a full-featured HTML editor.

6 0
2 years ago
Digital and analog audio recordings have pros and cons. Do you think the pros of digital recordings outweigh the cons and theref
Debora [2.8K]

Digital vs Analog Audio is completely personal preference and there is no clear winner on which is better.

But there are some pros and cons about both, Analog sometimes distorts when playing and can be easily scratched and ruins the grooves. Analog is believed to be the true representation of the sound when it was recorded. Digital is not the actual recording of the sound, it's actually a combination of binary code. It is also sometimes mixed or remastered in Digital and sounds a bit different to make it sound better. It also depends on the system you are listening it from. You could have a horrible Digital system its playing through and an amazing Analog system playing, of course the Analog system will sound better in that case. Some believe that Digital is on par to overtake Analog in the "true picture of sound" category but some also say Analog will forever be the best at playing sound and Digital will always be the alternative.

But, in the end it's all personal preference and the pros and cons don't overweigh to make one better than the other.

6 0
3 years ago
Other questions:
  • Two electronics students are discussing static electricity and electric current. Student A says that a basic property of static
    12·1 answer
  • What is a critique of the feature detector model of object recognition?​?
    8·1 answer
  • What list did poe appear on for the search engine lycos?
    11·1 answer
  • Explain in three to four sentences what happens to data packets once they leave a node.
    11·2 answers
  • Which of the following is a good precaution to take when making online purchases? (1 point)
    15·1 answer
  • AP CSP - Write a program that takes 10 random numbers from 1 to 12 inclusively and averages them together.
    8·1 answer
  • ___________ is a technique that uses IT to develop an ongoing relationship with the purchasers or buyers of an organization's pr
    13·1 answer
  • Agile Software Development is based on Select one: a. Iterative Development b. Both Incremental and Iterative Development c. Inc
    11·1 answer
  • List at least 5 professions for people working in the Information/Communication<br> fields.
    10·1 answer
  • If your computer determines the destination address of a network packet is to a remote network.
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!