Answer: This can be explained s follows :-
Explanation: The approach in which services available in the network are used by the applications is called service oriented architecture. In such structure a business function is provided by each service that is independent of other services.
Object oriented programming is a programming paradigm. OOP can be used outside of that architecture or it can be apart of SOA as well .
a. Is there any functional difference between the class being instantiated in the following two ways? Balanced bal = new Balanced ("abc", "xyz"); Balanced bal = new Balanced ("cab", "zxy"); b. Is there any functional difference between the class being instantiated in the following two ways? Balanced bal = new Balanced ("abc", "xyz"); Balanced bal = new Balanced ("abc", "zxy"); c. Is there any functional difference between the class being instantiated in the following two ways? Balanced bal = new Balanced ("abc", "xyz"); Balanced bal = new Balanced ("xyz", "abc"); d. What type is pushed onto the stack? A char? An int? An integer? explain. e. Under which circumstances is the first opeation performed on the stack (not counting the new operation) the top operation? f. What happens if the string expression, that is passed to the test method, is an empty string?
Answer:
A,B,C -NO
D-Value type like int,char..
E.pop
D. it throws null exception
Explanation:
(A,B,C)There is no functional difference but as the values passed to the parameterized constructor is different so you will get different outputs but functionality of the class didn't change
(D) stack is a data structure which stores value types where as heap stores object types.In.stack actual value of the variable stored and heap address of the object stored
(E)the top operation on stack is always pop once we inserted the elements in a stack.if there are no elements in stack pop results null
(D) if the string we passed is null or empty to the test method it returns exception we need to handle that
When designing a database, what should your first step be?
A. Clearly define the purpose of the database.
B. Divide data into tables that don't duplicate data.
C. Specify table relationships.
D. Choose the primary key for each table.
Answer:
Option A is the right answer. When designing a database the first step is to clearly define the purpose of database. What are the primary goals you want to achieve by building a database for a specific purpose. There are various methods of defining core purpose of database design.
Explanation:
As we understand defining purpose of database is the first step in database development, followed by series of steps to accomplish a database for required purpose.Requirement analysis/ elicitation defines the purpose of a database.Requirement analysis help us finding and organizing the information required i.e. purpose-the foremost step, to build a database.Gather the required information and group/ divide that information into tables.Select the unique identifier in each table to make it primary key.Set up and specify table relationships i.e one-to-one, one-to-many etc.Answer details
Grade: College
Subject: Computers and Technology
Chapter: Database Design
Keywords: designing database, relations in database, primary key etc
Final answer:
The correct answer is "clearly define the purpose of the database". The first step in designing a database is to clearly define its purpose, which guides all other design decisions such as table organization, relationships, and primary keys.
Explanation:
When designing a database, the first step should always be to clearly define the purpose of the database. This involves understanding its main functions, the kind of data it will contain, and how that data will be used. It's essential to document the purpose of the database, its anticipated users, and the ways in which it is expected to be utilized. This foundational step is critical for guiding subsequent design decisions, such as data modeling, establishing table relationships, and choosing primary keys.
After the purpose is defined, the next steps involve organizing the data efficiently. This includes dividing data into tables to minimize redundancy and establishing table relationships to link related data effectively. Defining primary keys for each table is another crucial step to ensure that each record can be uniquely identified, thus maintaining data integrity and facilitating data retrieval.
When you create an array variable, memory space is automatically reserved.
True
False
Answer:
The answer is true.
Explanation:
An array is a collection of data of the same type. It is used to handle a number ''n'' of elements in common, either of types defined by the language ( int, float, string, etc) as well as those defined by the programmer.
A one dimensional array is a structured data type that is made up of a finite, ordered collection of data of the same type.
A vector, also called a one dimensional array, is a data structure that allows you to group elements of the same type and store them in a single block of memory together, one after the other. This group of elements is identified by the same name and the position in which they are found. Ther first position of the array is position zero.
We could group in an array a series of elements of integer type, floating, etc. For example:
int a [5]; (vector of 5 integers)
float b[5]; (vector of 5 floating)
int a [] = {5,6,7,8,9};
float b [] = {5.1,5.2,5.3,5.4,5.5};
Since there are 5 elements in each array, automatically 5 memory spaces will be assigned to each vector, but if I try to create the vector of the form int a [], the compiler will show an error, because I did not indicate the size of the vector and I did not initialize its elements.
Which object waits for and responds toan event from a GUI component?
buttonlistener
GUIlistener
action eventlistener
windowlistener
Answer:
The answer is action eventlistener
Explanation:
It is an event handler and it is easy to implement.In java we call them even listeners it is function or a sub routine or a procedure that waits for an event to occur and respond to an event from a GUI component.
Use the SAS dataset insure to create a dataset, work.insure10, that (a) only reads in the variables Name, Policy, Company, PctInsured, and BalanceDue (b) only outputs records where PctInsured is less than 100 (c) only outputs the variables Name and BalanceDue Print the resulting dataset
What will be the value of input_value if the value 5 is input at run time?
cin >> input_value;
if (input_value > 5)
input_value = input_value + 5;
else if (input_value > 2)
input_value = input_value + 10;
else
input_value = input_value + 15;
Answer:
15
Explanation:
The if else state is used for checking the condition and if the condition is TRUE and program can execute the statement within the if else.
Initially input_value is 5
then the if statement check the condition 5>5, condition FALSE because 5==5
it not less than 5.
then program move to else if and check condition 5>2, condition TRUE.
then, input_value = 5 + 10=15 execute and update the value to 15.
After that, program terminate the if else statement.
Therefore, the answer is 15.
how to make secure emailcompatabil with other email system??
Answer:
To make secure email compatible with other email system as, as we know that secured email is compatible in all ways and also it provides good flexibility. So, emails should prioritize the maximum security and a strong encryption and convenience to use like user friendly apps on all their device.
There are some factors which provides a secure email as:
EncryptionPrivacyServer locationJurisdictionAuthentication
write a program which capitalize every character after full stopin a given sentence
Answer:
#include <bits/stdc++.h>//header file which includes most of the libraries..
using namespace std;
int main() {
char st[500];//character array of length 500..
cin.getline(st,499);//taking input of the text.
for(int i=0;st[i];i++)
{
if((st[i]=='.')&& (i!=strlen(st)-1))//condition
{
st[i+1]= toupper(st[i+1]);//converting to upper case.
}
}
cout<<st<<endl;//printing the string..
return 0;
}
Input:
i am .the .great .gambler.i am going gamble everything
Output:
i am .The .Great .Gambler.I am going gamble everything
Explanation:
I have taken a character array of size 500.
Taking input as a line.
If full stop encounters then converting the character to uppercase if it exists.
Printing the output.
Every dimensional model is composed of one ---------tableo Centralo Parallelo Verticalo Horizontal
Answer: Central
Explanation: Dimensional model is the model that is created for the requirement of analysis of a particular business such as data warehouse. It is usually referred as the fact table as well. Dimensional model has one major table known as central table and multi-part tables connected with it.The combination of the smaller tables are known as the dimension tables also.
The ____ operation is used to add an element onto the stack.
A.
push
B.
pop
C.
add
The class at the top of exception class hierarchy is ..........................
A) ArithmeticException
B) Throwable
C) Class
D) Exception
Answer:
B) Throwable
Explanation:
Great question, it is always good to ask away and get rid of any doubts that you may be having.
There are a wide range of classes on the exception class hierarchy. All the way on the top is the Objects Class but since that is not an available answer we will move on to the next one. The next one is the Throwable class. therefore that is the answer.
**Exception is after Throwable , and Arithmetic Exception is at the bottom.... everything is a class so that is not a part of the hierarchy **
I hope this answered your question. If you have any more questions feel free to ask away at Brainly.
What does the /etc/shadow file contain?
Answer:
This file contains encrypted password and other information also such as password expiration values,account and other confidential stuff etc.
Explanation:
In linux this file contains passwords and confidential stuff.
This file is only readable that to by the root account and hence it is secured.
The true or false questions.
The command: find -empty -type f -exec rm { } \; will remove all empty regular files, starting from the current directory
Answer:
true
Explanation:
The command:
find -empty -type f -exec rm { } \;
carries out the following steps.
1) Finds all the empty files in the current directory and its subdirectories.
2) For each of the identified files, it executes the command specified as the parameter to exec option,namely, rm <filename>.
So effectively it removes all empty files in the directory tree starting at the current directory.
A five-digit number is entered through the keyboard. Write a program to obtain the reversed number
Answer:
#include<iostream>
using namespace std;
int main(){
int number;
cout<<"Enter the five-digit number: ";
cin>>number;
int result = 0;
while(number != 0){
int remainder = number % 10;
result = result*10 + remainder;
number = number/10;
}
cout<<"The reverse Number is: "<<result<<endl;
return 0;
}
Explanation:
first, include the library iostream for using the input/output.
Then, create the main function and declare the variables.
Print the message on the screen by using the instruction cout.
Store the value enter by the user in the variable by using cin instruction.
Take the while which runs until the number not equal to zero.
In the while, first, take the remainder of the number by using the operator '%'.
for example:
number = 123 % 10, it gives the value 3 which is the remainder.
after that, we write logic to reverse the number:
initially, remainder =3 and result=0
result = result * 10 + remainder
so, the result will be 3
after that, suppose remainder =2 and result=3 (previous calculated)
result = 3* 10 +2.
so, the result will be 32. so the number is reversed. we store the number in reverse order.
This process continues until the condition is true.
After that, print the output.
Differentiate Between register and Memory location (
Answer:
Register-it contains all the instructions that are present in the processor.
Memory location- it is the particular memory address where the data is stored.
Explanation: Difference between register and memory location are as follows :-
Register are the found in the CPU internal storage and memory location is present on the RAM.Registers are faster in movement as compared to the memory location.Register has the capacity of holding of less data as compared to the memory location which can store data in large amount .The condition that is tested by a while loop must be enclosed in parentheses and terminated with a semicolon
True False
Answer:
False
Explanation:
while loop is used to execute the statement again and again until the condition is TRUE.
Syntax:
initialization;
while(condition)
{
statement;
}
we write condition within the parentheses but without terminate with the semicolon.
Therefore., the answer is False
Write a 'C' program that contains two arrays: one that containsthe name of the months, another that contains the number of days ineach month.You should hard -code the month names and number ofdays in each month when you initialize the arrays(don't need toprompt the user for input). Then, use loop to iterate through thearrays and printout each month and the number of days in themonth.
Answer:
#include<stdio.h>
//main function
int main(){
//initialization of variable
char arr1[12][12] = {"January","February","March","April","May","June","July","August","September","October","November","December"};
int arr2[12]={31,28,31,30,31,30,31,31,30,31,30,31};
int i,j;
//for loop for print the arrays
for(i=0;i<12;i++){
for(j=0;arr1[i][j]!='\0';j++){
printf("%c",arr1[i][j]); //for print the months
}
printf(" %d",arr2[i]); //print the days
printf("\n"); //for newline
}
return 0;
}
Explanation:
Create the main function and then define the two array with hard-code the month names and number of days in each month.
For defining the string array, you have to take the 2-D array of type 'char'.
then, take nested for loop for print the element in the array.
nested for loop means, loop inside a loop. It is used for the 2-D array. The outer loop is for row and the inner loop is for the column.
For every row, the inside loop print the string character by character with the help of printf() function which is used to display the value on the screen.
after the inner loop terminates, then another prinf() function is used for print the days after the name of the month. Then. the outer loop runs again.
This is process continues until the outer loop not terminate and finally, we get the desired output.
Assume that x is an integer variable. Which of the following represents the memory address where x is stored? E) None of the Above A) x B) &x C) *x D) 2**
Answer: (B) &x
Explanation:
Here whenever any variable is stored let it be integer, char, float it is always stored in a memory location assigned as '&'. Here the location where x is stored is denoted as '&x' which means memory address of x. *x means the pointer which is pointing to the memory address of x.
Write a JAVA program to sort a given array of integers (1 Dimensional) in ascending order (from smallest to largest). You can either get the array as input or hardcode it inside your program.
Answer:
import java.util.Arrays;
public class sort{
public static void main(String []args){
int[] arr = {2,6,9,1,5,3};
int n = arr.length;
Arrays.sort(arr);
for(int i=0;i<n;i++){
System.out.println(arr[i]);
}
}
}
Explanation:
first import the library Arrays for using inbuilt functions.
create the main function and define the array with elements.
then, use the inbuilt sort function in java which sort the array in ascending order.
syntax:
Arrays.sort(array_name);
then, use for loop for printing the each sorting element on the screen.
The AND operator is written as two ____.
a.
asterisks
b.
equal signs
c.
ampersands
d.
plus signs
Answer:
ampersands
Explanation:
In the programming the AND operator is denoted as '&&' , two ampersands.
it is used to between two conditions and give Boolean result.
It has four possible result:
first condition TRUE second TRUE, result TRUE
first condition TRUE second FALSE, result FALSE
first condition FALSE second TRUE, result FALSE
first condition FALSE second FALSE , result FALSE
For example:
(5 > 0 && 7 > 4): it gives the result TRUE because both are true.
5 > 8 && 7 > 4): it gives the result FALSE because one is false.
Why procedures are used and what must be the lastexecutable instruction in a
procedure?
Answer:
Procedure are used to create and modifying the programs. Basically, it is grouping of instruction that can be used give direction of the flow of program. Control are given to the next term once the execution of the instruction get over. The steps of procedure are:
procedure are first executed the declaration instruction and then coding the procedure, then it will return to the directories and the last executable instruction is the termination of procedure.
Which definitionmatches the term "induction"?
a- Reasoning from specific evidence to a general conclusion
b- Reasoningfrom a generalization to a specific conclusion
c- Reasoning from a vivid personal narrative
d- Reasoningfrom a variety of evidence
Answer:
a- Reasoning from specific evidence to a general conclusion
Explanation:
Induction is reasoning from specific evidence to a general conclusion.
Why transport layer is usingconnectionless services if network layer is providing connection oriented services?
Answer:
Transmission Control Protocol
Explanation:
Transmission Control Protocol is using connectionless services if network layer is providing connection oriented services.
When a user process is running and an instruction is executed that requests a file-open operation, which of the following event will occur? (A) Supervisor call (B) Trap (C) I/O interrupt (D) Fault (E) None of the above
Answer:e
Explanation:
Because it will automatically work
Develop a program so that the output will produce the following :
the circumference of the circle is 33.912
the area of the circle is 91.5624.
Answer:
#include <iostream>
using namespace std;
int main()
{
float radius = 5.4;
float circumference = 2 * 3.14 * radius;
float area = 3.14 * radius * radius;
cout<<"the circumference of the circle is "<<circumference<<endl;
cout<<"the area of the circle is "<<area<<endl;
return 0;
}
Explanation:
Include the library iostream for using the input/output instructions.
create the main function and define the variable with value. Then,
use the formula to calculate the circumference and are of circle.
[tex]circumference = 2*\pi *radius[/tex]
[tex]area = \pi * radius^{2}[/tex]
here, choose [tex]\pi = 3.14[/tex]
after that, display the result.
Note: All variable define in float type.
Write the definition of a function printLarger , whichhas two int parameters and returns nothing. The functionprints the larger value of the two parameters to standard output ona single line by itself.
Answer:
void printLarger (int num_1, int num_2){
//if else statement for checking the condition
if(num_1 > num_2){
cout<<num_1<<endl; //display the output
}else if(num_1 < num_2){
cout<<num_2<<endl; //display the output
}
}
Explanation:
Create the function with return type void, it means the function returns nothing.
The number will be large if it less than the second number.
The possible condition are:
1. number_1 > number_2: the number_1 will be large.
2. number_1 > number_2: the number_2 will be large.
In the programming, if-else is the conditional statement which is used for checking the condition and gives the output accordingly.
Syntax:
if(condition){
statement;
} else if(condition){
statement;
}
when the program executes the if statement checks if condition number_1 > number_2 is true or not if true then print the output.
if the condition false, then the program control move to the else if part and then checks the condition if the condition true then print the output.
Create a function names minElement() that takes an array of numbers as a paaramter and returns the min value of the array. The array may not be modified by the function. The array method .sort() may not be used. The function must loop through the array
Answer:
#include<iostream>
using namespace std;
//create the function
int minElement(int arr[],int n){
int minimum = arr[0]; //store the first value of array
//for loop for iterate the each element
for(int i=0;i<n;i++){
if(arr[i]<minimum){ //compare
minimum=arr[i];
}
}
return minimum;
}
int main(){
int arr[]={4,1,7,9,2,6};
int array_size = 6;
int result = minElement(arr,array_size); //calling
cout<<"The min value is: "<<result<<endl;
}
Explanation:
First include the library iostream in the c++ programming for input/output.
then, create the function minElement() for find the minimum value in the array.
it required the one loop for iterate the each element in the array and then compare with first element in the array which is store in the variable minimum.
if array element is less than the minimum then, update the value in the minimum variable.
after complete the loop, return the result.
for capture the result create the main function and call the function with parameter array.
and finally display the result.
The Task Manager can be used ot track running _________________ .
Answer:
Processes
Explanation:
The Windows Task Manager helps us track processes running on the system.
It can be invoked by pressing Ctrl+Alt+Delete and selecting the 'Task Manager' option or by right clicking on the status bar and choosing 'Task Manager' menu item. Besides the running process name it also provides supplementary information about the process such as :
CPUMemoryDiskNetworkWhat operator is used to create a validation rule? A. – B. / C. < or > D. +
Answer:
A
Explanation:BECAUSE
Relational operators, specifically < and >, are used to create validation rules that data must satisfy when being entered or modified. They set conditions such as requiring a quantity to be at least one, as in >=1.
The operator used to create a validation rule is C. < or > which are relational operators. These operators are essential in forming expressions that set the conditions data must meet to be considered valid. For instance, a typical validation rule in an Order Entry form might be that the quantity entered must be equal to or greater than one. In this case, the rule would be represented as >=1.
In database systems and programming, the proper use of relational operators, such as <, >, <=, and >=, is critical for ensuring accurate querying and data integrity. These operators allow for comparison between values, ensuring that the entered data fits within the specified parameters defined by the validation rules.
What is the role of programmers in an organization?
Answer: The major responsibility of a programmer is the development of the computer programs for an organization.
Explanation: Programmers tends to have good programming language knowledge for developing programs according to the need. They are supposed to create coding pieces as per the requirement in a software programming language. They are also have a duty of testing the program code. They should persist the skill of problem solving as well as critical thinking to be a good programmer in a particular organization.