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3 years ago

Explain what a datalist element does and is used for.

1 answer:

8 0

The datalist element is specifically a set of pre-defined options for an input element. It could be used to provide fast choices for an input field such as an "autocomplete" feature.

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A malware which acts like a spy in computer system is called ___?

Leona [35]

Answer:

A Trojan horse, or Trojan

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3 years ago

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Write a multithreaded program that generates the Fibonacci series using Pthreads thread library. This program should work as fol

Mamont248 [21]

Answer:

#include <pthread.h>

#include <stdio.h>

#include <stdlib.h>

pthread_mutex_t mutex;

int fib[10]; /* this data is shared by the thread(s) */

int in = 0;

void *genFibo(void *param); /* the thread */

int main(int argc, char *argv[])

{

pthread_attr_t attr;

if (argc != 2) {

fprintf(stderr,"usage: fibthread <integer value>\n");

return -1;

}

int count = atoi(argv[1]);

if (count < 1) {

fprintf(stderr,"%d must be>= 1\n", count);

return -1;

}

pthread_attr_init(&attr);

// Mutex Lock

pthread_mutex_init(&mutex, NULL);

// each thread computes fibonacci

for(int i = 1;i <= count;i++) {

pthread_t thread;

pthread_create(&thread, &attr, genFibo, (void*)i);

pthread_join(thread, NULL);

}

// print resulting array

for (int i = 0; i < in;i++) {

printf("%d ", fib[i]);

}

printf("\n");

pthread_mutex_destroy(&mutex);

}

void *genFibo(void *param)

{

pthread_mutex_lock(&mutex);

fib[in++] = fibonacci((int)param);

pthread_mutex_unlock(&mutex);

pthread_exit(0);

}

int fibonacci (int x)

{

if (x <= 1) {

return 1;

}

return fibonacci(x-1) + fibonacci(x-2);

}

4 0

4 years ago

You would like to find the average of cells C2, C3, and C4. What should the formula look like? = C2+C3+C4*3 =C2+C3+C4/3 =(C2+C3+

Marizza181 [45]

Answer:

c3 and c4 and c2 are different and same

Explanation:

average cells are ptoboxide

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4 years ago

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There are many opportunities for unscrupulous people to break information system security. Of the five components in an informat

7nadin3 [17]

The answer is letter e.

People is the component poses the very large ongoing security risk. It also can be a threat to the safety. People play an essential part in most operational systems and methods. Information, ability and mental outlook often determine the feature and quantity of system output. Just as a stereo requires the right component, high-performance business systems require the right fit of people to work.

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3 years ago

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Create an application that lets the user enter the food charge for a meal at a restaurant. When a button is clicked, the applica

Art [367]

Answer:

Public Class Form1

Private Sub Button1_Click(sender As Object, e As EventArgs) Handles Button1.Click

Dim foodCharge, tax, tip, totalCharge As Double

foodCharge = Val(TextBox1.Text)

tax = 0.07 * foodCharge

tip = 0.15 * 100

totalCharge = foodCharge + tax + tip

Label5.Text = tax

Label6.Text = tip

Label7.Text = totalCharge

End Sub

End Class

Explanation:

This is implemented using Visual Basic programming language
Firstly we declared all the variables using DIM key word
Then the calculation for each variable is done according to the specification of the question
On the form (See attached Image) the controls for receiving the user input is created as well as the controls for the output.
See the attached sample run below:

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4 years ago