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3 years ago

True/False

Computers and Technology

1 answer:

Usimov [2.4K]3 years ago

5 0

Answer:

True

Explanation:

Event handlers are basically functions that are triggered when an event occurs, example of events are click, drag, mouseover, etc. the two items (menu item and button) are usually triggered by the same type of event, which is the click event, and besides event handlers are nothing but functions that are executed/triggered when an event occurs. They are both functions and they are both triggered by a click event.

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17. Write a SELECT query for the palateE4 database that produces a result grid listing paintName, and a count of the occurrences

GaryK [48]

Answer:

SELECT paintname, COUNT(paintname) as count_paintname

FROM paint

GROUP BY paintname HAVING COUNT(paintname) > 2

ORDER BY paintname

Explanation:

The structured query language or SQL statement returns two columns of paintname and the count of the distinct paint names in the paint table with rows of grouped paint names greater than two and in the ascending order of the names.

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3 years ago

A general rule for adding text to a slide is ____.

KiRa [710]

A general rule for adding text to a slide is to use not more than two fonts in a presentation and vary the font size. Besides adding text you can also import text, photographs, numerical data, and facts from files created in programs such as Microsoft word, excel and access.

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3 years ago

Read 2 more answers

Mesh networks:__________.

postnew [5]

Answer:

b. typically contain more circuits in the network than in star or ring networks

Explanation:

In mesh architecture, all computers are connected to each other. In mesh all nodes connect directly and non hierarchical to each other so as to efficiently route data.

Mesh combines the benefits of both ring and star networks. It usually provide relatively short routes through the network (compared to ring networks) and provide many possible routes through the network to prevent one circuit from becoming overloaded (as compared to star network). Mesh network uses decentralized routing with each network performing its own routing.

Mesh network typically contain more circuits in the network than in star or ring networks and are more expensive than ring networks

7 0

3 years ago

Write a function that returns a chessboard pattern ("B" for black squares, "W" for white squares). The function takes a number N

Kryger [21]

Answer:

Here is the C++ program.

#include <iostream> //to use input output functions

using namespace std; // to access objects like cin cout

void chessboard(int N){ // function that takes a number N as parameter generates corresponding board

int i, j;

string black = "B"; // B for black squares

string white = "W"; // W for white squares

for(i=1;i<=N;i++){ //iterates through each column of the board

for(j=1;j<=N;j++){ //iterates through each row of the board

if((i+j)%2==0) // if sum of i and j is completely divisible by 2

cout<<black<<" "; //displays B when above if condition is true

else //if (i+j)%2 is not equal to 0

cout<<white<<" "; } // displays W when above if condition is false

cout<<endl; } } //prints the new line

int main(){ //start of the main function

int num; //declares an integer num

cout << "Enter an integer representing the size of the chessboard: "; //prompts user to enter size of chess board

cin >> num; //reads value of num from user

chessboard(num); } //calls chessboard function to display N lines consist of N space-separated characters representing the chessboard pattern

Explanation:

The function works as follows:

Lets say that N = 2

two string variables black and white are declared. The value of black is set to "B" and value of white is set to "W" to return a chessboard pattern in B and W squares.

The outer loop for(i=1;i<=N;i++) iterates through each column of the chess board. The inner loop for(j=1;j<=N;j++) iterates through each row of chess board.

At first iteration of outer loop:

N = 2

outer loop:

i=1

i<=N is true because i=1 and 1<=2

So the program enters the body of the outer for loop. It has an inner for loop:

for(j=1;j<=N;j++)

At first iteration of inner loop:

j = 1

j<=N is true because j=1 and 1<=2

So the program enters the body of the inner for loop. It has an if statement:

if((i+j)%2==0) this statement works as:

if(1+1) % 2 == 0

(1+1 )% 2 takes the mod of 1+1 with 2 which gives the remainder of the division.

2%2 As 2 is completely divisible by 2 so 2%2 == 0

Hence the if condition evaluates to true. So the statement in if part executes:

cout<<black<<" ";

This prints B on the output screen with a space.

The value of j is incremented to 1.

j = 2

At second iteration of inner loop:

j = 2

j<=N is true because j=2 and 2=2

So the program enters the body of the inner for loop. It has an if statement:

if((i+j)%2==0) this statement works as:

if(1+2) % 2 == 0

(1+2 )% 2 takes the mod of 1+2 with 2 which gives the remainder of the division.

3%2 As 3 is not completely divisible by 2

Hence the if condition evaluates to false. So the statement in else part executes:

cout<<white<<" ";

This prints W on the output screen with a space.

B W

The value of j is incremented to 1.

j = 3

Now

j<=N is false because j=3 and 3>2

So the loop breaks and program moves to the outer loop to iterate through the next row.

At second iteration of outer loop:

N = 2

outer loop:

i=2

i<=N is true because i=2 and 2 = 2

So the program enters the body of the outer for loop. It has an inner for loop:

for(j=1;j<=N;j++)

At first iteration of inner loop:

j = 1

j<=N is true because j=1 and 1<=2

So the program enters the body of the inner for loop. It has an if statement:

if((i+j)%2==0) this statement works as:

if(2+1) % 2 == 0

(2+1 )% 2 takes the mod of 2+1 with 2 which gives the remainder of the division.

3%2 As 3 is not completely divisible by 2

Hence the if condition evaluates to false. So the statement in else part executes:

cout<<white<<" ";

This prints W on the output screen with a space.

B W

The value of j is incremented to 1.

j = 2

At second iteration of inner loop:

j = 2

j<=N is true because j=2 and 2=2

So the program enters the body of the inner for loop. It has an if statement:

if((i+j)%2==0) this statement works as:

if(2+2) % 2 == 0

(2+2 )% 2 takes the mod of 2+2 with 2 which gives the remainder of the division.

4%2 As 4 is completely divisible by 2 so 4%2 == 0

Hence the if condition evaluates to false. So the statement in if part executes:

cout<<black<<" ";

This prints B on the output screen with a space.

B W

W B

The value of j is incremented to 1.

j = 3

Now

j<=N is false because j=3 and 3>2

So the loop breaks and program moves to the outer loop. The value of outer loop variable i is incremented to 1 so i = 3

N = 2

outer loop:

i=3

i<=N is false because i=3 and 3>2

So this outer loop ends.

Now the output of this program is:

B W

W B

Screenshot of this program along with its output is attached.

8 0

3 years ago

During the _______ steps of the information processing cycle, data is manipulated, calculated, or organized to create useful inf

labwork [276]

Answer: processing

Explanation:

During the processing steps of the information processing cycle, data is manipulated, calculated, or organized to create useful information.

At this stage, the data that has been gotten will have to be worked on by manipulating it, making necessary calculations in order to get a useful information out of it.

6 0

3 years ago