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jeka94
4 years ago
6

_______ make up the basic structure of a relational database with columns containing field data and rows containing record infor

mation.
a. QR codes
b. tablets
c. fields
d. workbooks
Computers and Technology
2 answers:
8_murik_8 [283]4 years ago
5 0

Answer:

Tables make up the basic structure of a relational database

Explanation:

Option 1 (QR codes) is not valid because QR codes are similar to bar-codes where it can be scanned through the smart phone camera and the relevant link will get opened.

The term tablets describe the type of digital device. Hence Option 2 is invalid.

Fields represent only the names of column. So this is does not convey whole information.

Workbook is the term related to excel and does not relate to RDBMS.

Tables have rows and columns which form the basic structure of a RDBMS. Rows are represented as “tuple” and columns are otherwise known as “fields”.

Klio2033 [76]4 years ago
3 0
QR codes make up the basic structure of a relational database with columns containing field data and rows containing record information.
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What is displayed on the console when running the following program?
uranmaximum [27]

I guess there should be the program code in your question. I presume that the complete version of your question is the following:

What is displayed on the console when running the following program?

public class Test {

 public static void main(String[] args) {

   try {

     System.out.println("Welcome to Java");

     int i = 0;

     int y = 2 / i;

     System.out.println("Welcome to HTML");

   }

   finally {

     System.out.println("The finally clause is executed");

   }

 }

}

A.  Welcome to Java, then an error message.

B.  Welcome to Java followed by The finally clause is executed in the next line, then an error message.

C.  The program displays three lines: Welcome to Java, Welcome to HTML, The finally clause is executed, then an error message.

D.  None of the above.

Answer to the complete question with explanation:

B.     Welcome to Java followed by The finally clause is executed in the next line, then an error message

After entering <em>try/catch</em> block program will output <em>"Welcome to Java"</em>.

Then <em>ArithmeticException</em> will be raised at line:

<em>int y = 2 / i;</em>

The reason is division by <em>0</em> because <em>i = 0</em>.

After that <em>finally</em> clause will be executed despite exception thrown which will output <em>"The finally clause is executed"</em>.

There could be a chance that you have modified answers to your question. In that case:

Answer to the original question:

a. Welcome to Java,

c. The finally clause is executed, then an error message.

7 0
3 years ago
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7 0
4 years ago
The game begins with the player having 20 POINTS
kompoz [17]

Answer:

Following are the code to this question:

import random#import package for using random method  

def rolling_dice(): #defining method rolling_dice that uses a random number to calculate and add value in dice1 and dice2 variable

   dice1 = random.randint(1,6)

   dice2 = random.randint(1,6)

   return dice1 + dice2

def rolling(): # defining method rolling

   n_roll = 0  # defining num variable that initial value that is 0.

   p = 20 # defining variable p for looping, that points in between 1 and 59

   while p > 0 and p < 60: # defining loop that counts value dice value two times  

       d = rolling_dice()#defining d variable that hold method value

       n_roll+= 1 #defining n_roll that increment n_roll value by 1

       if d == 7 or d == 11:# defining if block that uses the d variable that checks either 7 or 11, player won d in p variable

           p+= d   # use p variable that adds d variable

       elif d == 2 or d == 3 or d == 12:#defining elif block to that checks d variable by using or operator  

           p-= d#defining d variable that decreases d variable variable

       else: # defining else block

           p1 = d # using p1 variable that store d value  

           while True:# defining loop that calculates values

               d = rolling_dice()#defining d variable that holds method values

               n_roll += 1 #increment the n_roll value by 1

               if d == 7:#defining if block that checks d value equal to 7

                   p -= p1#subtract the value of p1 in p variable  

                   break # exit loop

               elif d == p:#defining elif block to check d value is equal to p

                   p += p1#adds the value of p1 in p variable  

                   break#using break keyword

   if p<= 0:#defining if block that checks p-value is less then equal to 0  

       print('Player lost')#using print method

   elif p>= 60:#defining else block that checks p-value is greater than equal to 60

       print('Player won')#using print method to print the value

   print('number of dice rolls:', n_roll)#use print method to print n_rolls value

rolling()

Output:

Player lost

number of dice rolls: 38

Explanation:

In the above-given python code, a method "rolling_dice" is declared, inside the method two-variable "dice1 and dice2" is declared, that uses the random method to calculate the value in both variable and use the return keyword to add both values.

  • In the next step, another method the "rolling"  is declared, inside the method "n_roll and p" is declared that assigns the values and use the two while loop, inside the loop if block is defined that calculates the values.
  • In the next step, a condition block is used that stores value in the p variable and use the print method to print the "n_roll" value.  
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3 years ago
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