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dangina [55]
3 years ago
13

In one to three sentences describe one reason you would import data into a datebase

Computers and Technology
1 answer:
Bond [772]3 years ago
8 0

The primary reason that you would import data into a database is because the data already exists somewhere else.

As an example, you may have a spreadsheet that contains names and telephone numbers of a group of people. It is much faster to import this data into a database instead of manually entering the information.

You might be interested in
Write a method that computes the sum of the digits in an integer. Use the following method header: public static int sumDigits(l
kifflom [539]

Answer:

The java program for the given scenario is shown below.

import java.util.*;

import java.lang.*;

public class Test

{

   //variables to hold the number, digits and sum of the digits

   //variable to hold number is assigned any random value

   static long num=123;

   static int sum=0;

   static int digit;

   static int s;

   //method to add digits of a number

   public static int sumDigits(long n)

   { do

       {

           digit=(int) (n%10);

           sum=sum+digit;

           n=n/10;

       }while(n>0);

       return sum;

   }

public static void main(String[] args) {

    s = sumDigits(num);

 System.out.println("The sum of the digits of "+num+ " is "+s);  }

}

OUTPUT

The sum of the digits of 123 is 6

Explanation:

1. The variables to hold the number is declared as long and initialized.

2. The variables to store the digits of the number and the sum of the digits are declared as integer. The variable, sum, is initialized to 0.

3. The method, sumDigits(), is defined which takes a long parameter and returns an integer value. The method takes the number as a parameter and returns the sum of its digits.

4. Inside method, sumDigits(), inside the do-while loop, the sum of the digits of the parameter is computed.

5. Inside main(), the method, sumDigits(), is called. The integer value returned by this method is stored in another integer variable, s.

6. The sum of the digits is then displayed to the console.

7. All the variables are declared outside main() and at the class level and hence declared static. The method, sumDigits(), is also declared static since it is to be called inside main().

8. In java, the whole code is written inside a class since java is a purely object-oriented language.

9. In this program, object of the class is not created since only a single class is involved having main() method.

10. The program can be tested for any value of the variable, num.

11. The file is saved as Test.java, where Test is the name of the class having main() method.

7 0
3 years ago
ppose we have a Rectangle class that includes length and width attributes, of type int, both set by the constructor. Define an e
vichka [17]

Answer:

Check the explanation

Explanation:

#include <bits/stdc++.h>

using namespace std;

class Rectangle{

  public:

      int length;

      int breadth;

      Rectangle(int l,int b){

          length = l;

          breadth = b;

      }

      int area(){

          return length*breadth;

      }

      int perimeter(){

          return 2*(length+breadth);

      }

      bool equals(Rectangle* r){

          // They have the exact same length and width.

          if (r->length == length && r->breadth == breadth)

              return true;

          // They have the same area

          if (r->area() == area())

              return true;

          // They have the same perimeter

          if (r->perimeter() == perimeter())

              return true;

          // They have the same shape-that is, they are similar.

          if (r->length/length == r->breadth/breadth)

              return true;

          return false;

      }

};

int main(){

  Rectangle *r_1 = new Rectangle(6,3);

  Rectangle *r_2 = new Rectangle(3,6);

  cout << r_1->equals(r_2) << endl;

  return 0;

}

8 0
3 years ago
Write a short program using Python that will:
Alexxx [7]

Answer:

// program in Python to check perfect number

#function to find number is perfect or not

def is_Perfect_Number(n):

   #total variable

   tot = 1

   i = 2

   #sum of all divisor of number

   while i*i<=n:

       if n%i==0:

           tot = tot + i + n/i

       if tot == n and n != 1:

           return 1

       i = i+1  

   return 0

#read until user enter a perfect number

while True:

   #read integer

   num = int(input("Input an integer: "))

   #call the function

   if(is_Perfect_Number(num)):

       print(num,"is perfect number")

       #if perfect number break

       break

   else:

       print(num,"is not a perfect number")

       #ask again

   print("try again.")

Explanation:

Read number from user and then call the function is_Perfect_Number() with  parameter "num".This will find the sum of all divisor of number.If sum is  equal to number then it will return 1 else return 0.If the number is not  perfect then it will again ask to enter a number until user enter a perfect  number.

Output:

Input an integer: 24

24 is not a perfect number                                                                                                

try again.                                                                                                                

Input an integer: 28                                                                                                      

28 is perfect number

6 0
3 years ago
Tractor in reverse brainliest answer
abruzzese [7]

Answer:

Valtra

Explanation:

It is the only tractor that goes in reverse.

Thank you so much!

Have a good day

Hope this helped,

Kavitha Banarjee

5 0
2 years ago
How does a hard drive work
hammer [34]
Hi There!

<span>How does a hard drive work?

Hard Drive is for saving information </span>
7 0
3 years ago
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