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ipn [44]
3 years ago
5

Which best describes rfid technology?

Computers and Technology
1 answer:
Liula [17]3 years ago
4 0
RFID stands for <span>Radio-Frequency Identification. RFID is the use of radio waves to reach and capture data. The RFID chip can hold about 2,000 bytes of info.
</span><span>The RFID device serves the same purpose as a bar code or a magnetic strip on the back of a credit card or ATM card; it provides a unique identifier for that object. And, just as a bar code or magnetic strip must be scanned to get the information, the RFID device must be scanned to retrieve the identifying information.</span>
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JAVA
musickatia [10]

Answer:

class Main {  

 public static void main(String args[]) {

   int a = 5;

   int delta = 5;

   for(int i=0; i<10; i++) {

       System.out.printf("%d, ", a);

       a += delta;

       delta += 2;

   }

 }

}

6 0
3 years ago
Why do we use console.log in javascript when changing variables?
Fiesta28 [93]
It helps to debug the code. Instead of going through every line of code to find an error, using console.log can tell us where to look.
8 0
3 years ago
Read 2 more answers
R7.1 Carry out the following tasks with an array:
Andru [333]

Answer:

Following are the program in the C++ Programming Language.

//set header file or namespace

#include <iostream>

using namespace std;

//define main function

int main() {

//set integer type array with indexing 10

 int a[10];

//set integer type variable to 1

 int i=1;

//set element in 1st index

 a[0]=17;

//set element in last index

 a[9]=29;

//set while loop for the remaining elements

 while(i<9)

 {

//set -1 in the remaining elements

   a[i]=-1;

   i++;

 }

//set for loop to print array

 for ( int j = 0; j < 10; j++ ) {

   cout << a[j]<<endl;

 }

}

<u>Output:</u>

17

-1

-1

-1

-1

-1

-1

-1

-1

29

Explanation:

In the following program, we define the main function "main()" and inside it.

  • Set an integer type array element "a[]" with index value 10.
  • Set integer data type variable "i" initialize to 1.
  • Set elements in the first and last place in the array.
  • Set the while loop to initialize elements for the remaining place.
  • Set the for loop to print the array elements.
6 0
3 years ago
Online Book Merchants offers premium customers 1 free book with every purchase of 5 or more books and offers 2 free books with e
andrey2020 [161]

Answer:

This question has two parts, first part is about programming about a Player class and second for reading string from user and decide how many time duck string entered by user and terminate if user press goose string.

The explanation of both program (executable code) is given below in explanation section.

Explanation:

//Program 1

#include <iostream>

using namespace std;

int main()

{

 bool isPremiumCustomer;

 int nbooksPurchased;

 int totalBookPurchasedWithOffer;

// bool cutomerType;

 int freeBooks;

 cout<<"Press 1 for Premium Customer and 0 for regular Customer";

 cin>>isPremiumCustomer;

 cout<<"How many books you purchased ";

 cin>>nbooksPurchased;

 

 

switch(isPremiumCustomer)// what type of customer is  

{

case 1://if customer is premium

 if (nbooksPurchased >= 5&&nbooksPurchased<8)// purchase book greater between 5 and 8

  {

   freeBooks=1;//offer free book

   totalBookPurchasedWithOffer=nbooksPurchased+freeBooks;//total number of book including free book

   

   cout<<"You purchased total book with offer ";//show total books

   cout<<totalBookPurchasedWithOffer;

  }

   

  else if (nbooksPurchased >= 8)//if premium customer purchase more than 8 book

    {

    freeBooks=2;//offer two free book

    totalBookPurchasedWithOffer=nbooksPurchased+freeBooks;//total number of book including free book

    cout<<"You purchased total book with offer ";

    cout<<totalBookPurchasedWithOffer;//show total books

    }

  else{

   cout<<"You purchased total book with no offer ";

    cout<<nbooksPurchased;

   }

  break;

case 0:// if customer is regular customer

 if (nbooksPurchased >= 7&&nbooksPurchased<12)//and purchase book between 7 and 12

  {

   freeBooks=1;// offer 1 free book

   totalBookPurchasedWithOffer=nbooksPurchased+freeBooks;

   cout<<"You purchased total book with offer ";

   cout<<totalBookPurchasedWithOffer;

  }

   

  else if (nbooksPurchased >= 12)//if purchase 12 or more than 12 book

    {

    freeBooks=2;//offer two free book

    totalBookPurchasedWithOffer=nbooksPurchased+freeBooks;

    cout<<"You purchased total book with offer ";

    cout<<totalBookPurchasedWithOffer;

    }

 else{

  cout<<"You purchased total book with no offer ";

  cout<<nbooksPurchased;

  }

  break;

 

}

 

 

 

return 0;// terminate the program

 

}

/* program 1 has ended

and program 2 is started from here

#######################################################

*/

#include <iostream>

using namespace std;

int main()

{

string readstring;// take input string from user to enter either "goose" or "duck"

int count=0;//count the number of "duck"

while(readstring!="goose")//run loop, until user do not enter string  

{

 cout<<"Enter the string either goose or duck ";// prompt user to enter the string

 cin>> readstring;// read string from user

 if (readstring=="duck")//if string equal to "duck"

 {

  count=count+1;//count number of duck string enter by user

   

 }

}//exit/terminate the loop, if user enter the goose string

cout<< " Number of duck that were read " ;// show how many duck string entered by user

cout<<count;

return 0;// terminate the program

 

}

6 0
3 years ago
Jill edited James's document using Track Changes. James agrees with all of the edits and wants to incorporate them into his text
jenyasd209 [6]
The quick way for James to do so would be : A. open the tools menu, select options, and then select the track changes

with this method, James doesn't have to accept the edits one at a time which will waste his time

hope this helps
4 0
4 years ago
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