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vekshin1
3 years ago
9

When searching the web software programs called fetch a few web pages and then they follow the links on those pages and fetch th

e pages they point to, and so forth?
Computers and Technology
2 answers:
ICE Princess25 [194]3 years ago
6 0

Software programs called Spiders

When you are on Google and you decide to do a search, you are not searching the web pages. What you are doing is actually searching Google’s index of the web page. This is done with programs called spiders. They start off by fetching a few web pages, then follow links to those pages and collect all the pages they point to; and follow all the links, and then again fetch the pages they link to, and so forth. This is done until we have indexed a huge chunk of the web.

Basile [38]3 years ago
6 0

Answer:

the answer is "When searching the web software programs called spiders fetch a few web pages and then they follow the links on those pages and fetch the pages they point to, and so forth?

Explanation:

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Write a Java class called BankAccount (Parts of the code is given below), which has two private fields: name (String) and balanc
NemiM [27]

Answer:

Here is the Bank Account class:

public class Bank Account {   //class definition

   private String name;  //private String type field to hold name

   private double balance;    // private double type field to hold balance

    public Bank Account(String name, double balance) {  // parameter constructor that takes

//this keyword is used to refer to the data members name and balance and to avoid confusion between name, balance private member fields and constructor arguments name, balance

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   public void withdraw(double amount) {  //method to withdraw amount

 balance = balance - amount;   }   //subtracts the amount causing the current balance to decrease

    public String toString() {  // to display the name and current balance

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Explanation:

The explanation is provided in the attached document due to some errors in uploading the answer.

3 0
3 years ago
The following checksum formula is widely used by banks and credit card companies to validate legal account numbers: d0 + f(d1) +
Aleksandr [31]

Answer:

Here is the JAVA program:

import java.util.Scanner; //to import Scanner class

public class ISBN

{   public static void main(String[] args)  { // start of main() function body

   Scanner s = new Scanner(System.in); // creates Scanner object

//prompts the user to enter 10 digit integer

   System.out.println("Enter the digits of an ISBN as integer: ");    

   String number = s.next(); // reads the number from the user

   int sum = 0; // stores the sum of the digits

   for (int i = 2; i <= number.length(); i++) {

//loop starts and continues till the end of the number is reached by i

          sum += (i * number.charAt(i - 1) ); }

/*this statement multiplies each digit of the number with i and adds the value of sum to the product result and stores in the sum variable*/

          int remainder = (sum % 11);  // take mod of sum by 11 to get checksum  

   if (remainder == 10)

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Explanation:

This program takes a 10-digit integer as a command line argument and uses Scanner class to accept input from the user.

The for loop has a variable i that starts from 2 and the loop terminates when the value of i exceeds 10 and this loop multiplies each digit of the input number with the i and this product is added and stored in variable sum. charAt() function is used to return a char value at i-1.

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sum=d1 * 1 + d2 * 2 + d3 * 3 + d4 * 4 + d5 * 5 + d6 * 6 + d7 * 7 + d8 * 8 + d9 * 9

Next the mod operator is used to get the remainder by dividing the value of sum with 11 in order to find the checksum and stores the result in remainder variable.

If the value of remainder is equal to 10 then use X for 10 and the output will be the 10 digits and the 11th digit checksum (last digit) is X.

If the value of remainder is not equal to 10, then it prints a valid 11-digit number with the given integer as its first 10 digits and the checksum computed by sum % 11 as the last digit.  

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