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Which of the following statements represents the number of columns in a regular two-dimensional array named values?

puteri [66]

Answer:

(a) values[0].length

Explanation:

In programming languages such as Java, an array is a collection of data of the same type. For example, a and b below are an example of an array.

a = {5, 6, 7, 9}

b = {{2,3,4}, {3,5,4}, {6,8,5}, {1,4,6}}

But while a is a one-dimensional array, b is a regular two-dimensional array. A two-dimensional array is typically an array of one-dimensional arrays.

Now, a few thing to note about a two-dimensional array:

(i) The number of rows in a 2-dimensional array is given by;

arrayname.length

For example, to get the number of rows in array b above, we simply write;

b.length which will give 4

(ii) The number of columns in a 2-dimensional array is given by;

arrayname[0].length

This is with an assumption that all rows have same number of columns.

To get the number of columns in array b above, we simply write;

b[0].length which will give 3

Therefore, for a regular two-dimensional array named values, the number of columns is represented by: values[0].length

5 0

2 years ago

What is malware? What are some signs that malware may be impacting the performance of your computer? How can you avoid malware?

Anni [7]

Answer:

Malware is a type of software that is specifically designed to disrupt, damage, or gain unauthorized access to a computer system. Malware can be spread through email attachments, online advertisements, websites, and other methods.

Some signs that malware may be impacting the performance of your computer include:

Your computer is running more slowly than usual
Your computer crashes frequently
Your computer has pop-up ads or other unwanted behavior
Your default homepage or search engine has changed without your permission
You see new icons or programs on your desktop that you didn't install

To avoid malware, you should be cautious when browsing the internet and avoid visiting suspicious websites. You should also avoid opening email attachments from unknown senders, and be wary of online advertisements. You can also protect your computer by using antivirus software and keeping it up to date.

3 0

6 months ago

The Backstage view is where you can see information and options pertaining to the user account and settings. How is the Backstag

Georgia [21]

Answer:b) Mail settings can be changed under the options menu

Explanation: I fr just guessed so y’all can have an answer and I ended up getting it rights

6 0

2 years ago

Explain in detail what this code does, Whats the flow in it, and whats the risk that its creating and what can i do to fix it? (

kodGreya [7K]

Answer:

The buffer has room for 499 characters (you always have to reserve 1 for the terminating \0 character).

The code copies all characters passed in the commandline (argv[1]) into this buffer without checking. If there are more than 499 characters supplied, these will be copied into a memory location that is not intended for it. This will probably cause your program to crash, but if the extra data is somehow executed by the processor as if it were a program, this could be a way to sneak a virus into your computer.

So, while copying data, it is important to always limit the maximum amount to the allocated space.

5 0

2 years ago

I plugged my headphones into my computer, but the sound still came out of the speakers. help!

VARVARA [1.3K]

If you mean speakers. You should remove them or if you mean the speakers in the PC. Perhaps you put the headphones in the wrong one. Theres usually too one in the front and the other one in the back of the desktop.

Hope this helps.

Regards. Shaggy

Enjoy your music!

3 0

2 years ago

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