Posted in Computers and technology

It’s true but everybody knows how annoying CAPTCHA can be. Besides, it fails to work very often. So, you can loose your clients in this way. As a webmaster I recommend to use spam protection that would be invisible for visitors. For instance, https://cleantalk.org/ uses simple plugins for the most popular CMS such as WordPress spam protection plugin, Joomla, Drupal and other plugins. In this way visitors will be more loyal and not annoyed guessing characters or puzzles.  


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Posted in Computers and technology

Arlos, an algebra teacher, is creating a series of PowerPoint presentations to use during class lectures. After writing, formatting, and stylizing the first presentation, he would like to begin writing the next presentation. He plans to insert all-new content, but he wants to have the same formatting and style as in the first one. What would be the most efficient way for Carlos to begin creating the new presentation?

Using the Format Painter tool.

The Format Painter tool will help you use a single theme for your slides and will help achieve to your audience that your presentation is well planned and prepared. To achieve a consistent design look and appearance, all Carlos will have to do is highlight all the writing, formatting, and stylizing on the first presentation, double click the format painter tool on the home tab, and then highlight all the new content that are on the rest of the other slides.  

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Posted in Computers and technology

Color theory is a type of code, like HTML, that computers use to visually display colors. True False

Hey there! Hello!

I wouldn’t say this is true. As an artist, colour theory has to do with colour combination and mixing and helps artists see which colours look good together, what they should mix in order to achieve a certain colour/effect/etc., that kind of thing. It’s not something that computers use.

I believe what computers do use is hex codes. They’re six digit codes that go alongside HTML and other coding languages to identify colours. For example, solid white would be #ffffff and solid black would be #000000, just to name 2 of the many out there.

Hope this helps you out! Feel free to ask me any additional questions if you have any. 🙂

Posted in Computers and technology

What should you do before using a website to store student information ? A. Read and understand the website’s privacy contract B. Click the box that allows you to use the website C. Explain to children that you will be using a website D. Only use the school computer to access the website nt information?

Hey there! Hello!

For this question, I agree that it’s A. It seems to make the most sense, as you are reading how they will use your information and what they’re entitled to do with it. But, it never hurts to get a bit more info about the choices on a question!

For B, you’re literally just clicking the “I Agree With Terms And Conditions” box without actually reading the terms and conditions. This may lead to your information being shared with other providers, especially email/phone, so that they can send you offers and stuff, among other things, to your spam folder. It’s always advisable to at least brush up on a website’s terms before giving anyone your primary email address/phone number or any other personal information that you wouldn’t give to spammers directly.

C doesn’t even make any sense. The child that you tell probably won’t know or care about what you’re talking about. It’s much better to tell an adult that you’ll be using the website, not someone who’s younger than you and most likely has less experience??

D isn’t very good either, since you can still enter information into some website, as long as the website isn’t blocked by your school’s server.

It probably wasn’t necessary, but I hope this helped you out! Feel free to ask me any additional questions if you have any. 🙂

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Posted in Computers and technology

I have a couple of questions on java for my homework 21229 Assume the availability of a method named makeLine that can be passed a non-negative integer n and a character c and return a String consisting of n identical characters that are all equal to c. Write a method named printTriangle that receives two integer parameters n andk. If n is negative the method does nothing. If n happens to be an even number, its value is raised to the next odd number (e.g. 4–>5). Then, when k has the value zero, the method prints a SYMMETRIC triangle of O’s (the capital letter O) as follows: first a line of n O, followed by a line of n-2 O’s (indented by one space), and then a line of n-4 O’s (indented by two spaces), and so on. For example, if the method received 5,0 (or 4,0) it would print: OOOOO OOO O Note: in the above output , the first line contains 0 spaces before the first O, the next line 1 space, and so on. Note: These instructions state what the method does when k is zero, but it is up to you, the programmer, to determine what it does when k is not zero and use it for your advantage. The method must not use a loop of any kind (for, while, do-while) to accomplish its job. The method should invoke makeLine to accomplish the task of creating Strings of varying lengths. 20861 A palindrome is a string that reads the same forwards or backwards; for example dad, mom, deed (i.e., reversing a palindrome produces the same string ). Write a recursive, boolean -valued method , isPalindrome that accepts a string and returns whether the string is a palindrome. A string , s, is a palindrome if: s is the empty string or s consists of a single letter (which reads the same back or forward), or the first and last characters of s are the same, and the rest of the string (i.e., the second through next-to-last characters ) form a palindrome. 20864 A ‘array palindrome’ is an array which, when its elements are reversed, remains the same (i.e., the elements of the array are same when scanned forward or backward) Write a recursive, boolean -valued method , isPalindrome, that accepts an integer -valued array , and a pair ofintegers representing the starting and ending indexes of the portion of the array to be tested for being a palindrome. The function returnswhether that portion of the array is a palindrome. An array is a palindrome if: the array is empty (0 elements ) or contains only one element (which therefore is the same when reversed), or the first and last elements of the array are the same, and the rest of the array (i.e., the second through next-to-last elements ) form a palindrome.

In C, strings aren’t a data type. Strings are handled as an array of char (acters). Therefore, your two palindrome assignments are basically the same.

Recursion is something that is probably the most mind warping thing to learn in programming, but it is VERY well worth it. There’s a number of problems that are recursive in nature. One that you’re familiar with is doing addition with pencil and paper.  Think about it: you align the numbers in columns as you’re “going in”, when you run out of numbers, the base case, you start adding the column of numbers and the carry and write out the least significant digit of the total and returning the most significant digit[s] up the “unwind”.

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