Answer:
C. Fields
Explanation:
Fields are used to store all the data in a database.
Fields are used to store all the data in a database. The correct option is C.
What is a database?A database is a collection of data that has been organized to make it simple to manage and update. Data records or files containing information, including as sales transactions, customer information, financial data, and product information, are often aggregated and stored in computer databases.
A database field is a collection of identical data values in a table. It is also known as an attribute or a column. Most databases also permit complicated data storage in fields, including images, whole files, and even movie clips. A lot does not necessarily have simple text values just because it supports the same data type.
Therefore, the correct option is C. Fields.
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Write a program that asks the user to input four numbers (one at a time). After the four numbers have been supplied, it should then calculate the average of the four numbers. The average should then be displayed.
Answer:
Output
Enter first number:
1
Enter second number:
2
Enter third number:
3
Enter fourth number:
4
Average: 2.5
Explanation:
Below is the java program to calculate the average of four numbers:-
import java.util.Scanner;
public class Average {
public static void main(String[] args){
int a,b,c,d;
double average=0.0;
Scanner s=new Scanner(System.in);
System.out.println("Enter first number: ");
a=s.nextInt();
System.out.println("Enter second number: ");
b=s.nextInt();
System.out.println("Enter third number: ");
c=s.nextInt();
System.out.println("Enter fourth number: ");
d=s.nextInt();
average=(a+b+c+d)/4.0;
System.out.println("Average: "+average);
}
}
Write an if else statement that assigns 0 to the variable b and assigns 1 to the variable c if the variable a is less than 10. Otherwise, it should assign -99 to the variable b and assign 0 to the variable c.
Answer:
if(a < 10)
{ b = 0; c = 1;}
else
{ b = -99; c = 0;}
Explanation:
The if-else statement assigns values to variables b and c based on the condition whether a is less than 10. It assigns 0 to b and 1 to c if a < 10; otherwise, it assigns -99 to b and 0 to c.
This if-else structure is a fundamental concept in programming, allowing conditional execution of code based on whether a condition is true or false. For instance, if a equals 5, the values assigned will be b=0 and c=1, because 5 is less than 10. Conversely, if a equals 15, the assignments will be b=-99 and c=0.
if (a < 10) {To alter just one character in a StringBuilder, you can use the ____ method, which allows you to change a character at a specified position within a StringBuilder object.
a.
insert()
b.
setCharAt()
c.
append()
d.
charAt()
Answer:
setCharAt()
Explanation:
StringBuilder is a dynamic object that allow to create the string with no size restriction.
To answer the question, let discuss each option.
Option a: insert()
insert function is used to insert the element at the specific location but it does not change the rest of the character.
Option b: setCharAt()
it is used to change the value at specific location, it takes two argument location and character.
Option c: append()
it is used to connect the two string but it does not change the rest of the character.
Option c: charAt()
it is used to get the character at specific location. it does not allow the change.
Therefore, option b is correct option.
___ is an example of a calling statement.
A) float roi(int, double);
B) printf("%f", roi(3, amt));
C) float roi( int yrs, double rate);
D) float roi( int yrs, double rate)
Answer:
printf("%f", roi(3, amt));
Explanation:
To call the function, we have to put the function name without return type and if the function have parameter then we have to pass the parameter without data type as well.
Let discuss the options:
Option A: float roi(int, double);
it is not a calling, it is used to declare the function. In calling, return type of the function like float and data type of the parameter does not pass like int, double.
Option B: printf("%f", roi(3, amt));
print is used to display the result, inside the print it call the function. It is correct way to call the function.
Option C: float roi( int yrs, double rate);
it is not a calling, it is used to declare the function. In calling, return type of the function like float and data type of the parameter does not pass like int, double.
Option D: float roi( int yrs, double rate)
Same reason as option C.
Therefore, the option B is correct option.
Once a try block is entered, the statements in a(n) ____ clause are guaranteed to be executed, whether or not an exception is thrown.
A) catch
B) String
C) close
D) finally
Answer:
D - Finally
Explanation:
Once the program has executed and exited the try-catch structure (when all error handling is completed), it always executes the finally clause. The finally clause is best utilized when you want code executed even if the try structure finds an exception.
When you block statements, you must remember that any ____ you declare within a block is local to that block.
a.
decision
b.
expression
c.
method
d.
variable
When you block statements, you must remember that any method you declare within a block is local to that block.
What is Block statement?Each single statement in a Java program must be executed in the correct order. When all connected statements are enclosed in braces, we can sometimes produce a block statement that will be read as a single statement and allow us to use many statements to denote a single unit of work.
A compound statement that has been paired with a block statement is comparable.
When the class is loaded by JVM class loaders, the static blocks will only ever be executed once (Much like other static variables present at the class level).
Therefore, When you block statements, you must remember that any method you declare within a block is local to that block.
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Write a C++ program which contains a user-defined functionhaving name isSortedthat returnstrue if the array is sorted,and returns false if thearray is not sorted In main functionask the user to enter 10 integers and store them in array and thencall the function by passing this array. If array is sorted thendisplay message "Array is Sorted" otherwise displaymessage "Array is not Sorted"
Answer:
#include<iostream>
using namespace std;
//create the function
bool isSorted(int arrays[]){
int Array_size=10;//store the size
//check for condition if array is size 1 or zero
if(Array_size==1 || Array_size==0){
return true;
}
//traversing the array and check for sort
for(int i=1;i<Array_size;i++){
if(arrays[i-1]>arrays[i]){
return false;
}
}
return true;
}
//main function
int main(){
//initialization
int arrays[10];
cout<<"Enter the 10 numbers: "<<endl;
//for storing the value in array
for(int i=0;i<10;i++){
cin>>arrays[i];
}
//call the function and check is true or not and display message
if(isSorted(arrays)){
cout<<"Array is Sorted"<<endl;
}else{
cout<<"Array is not Sorted"<<endl;
}
return 0;
}
Explanation:
Include the library for using the input/output instruction.
create the function 'isSorted' with one parameter arrays and return type id bool. It means the function returns the true or false.
then, declare the variable and check the condition using the if-else statement. if the array size is zero or one, it means the array is sorted. So, the function returns true. otherwise, the program executes the next statement.
After that, take a for loop and traversing the array, an if-else statement is used for checking the previous element is greater than the next element, if condition true, the function returns the false.
after the loop checked all the element and the loop does not return false. It means the array is sorted and the function returns true.
create the main function and declare the array with size 10.
print the message on the screen and then store the element in the array.
we take a for loop and it runs 10 times. so, the user enters the number for every cycle of loop and store in the array.
after that, calling the function with an if-else statement, as we know the function returns the Boolean. So, if the function returns true then if statement executes and print message otherwise else statement executes and prints the appropriate message.
Why maintaining a procedure guide for backup is important?
The destructor automatically executes when the class object goes out of ____.
A.
scope
B.
use
C.
phase
Answer:
scope
Explanation:
Destructor is a member function and it call automatically when the class object goes out of scope.
Out of scope means, the program exit, function end etc.
Destructor name must be same as class name and it has no return type.
syntax:
~class_name() { };
For example:
class xyz{
xyz(){
print(constructor);
}
~xyz(){
print(destructor);
}
}
int main(){
xyz num;
}//end program
when the object is create the constructor will called and when the program end destructor will call automatically.
What are Loop Errors? Describe briefly. What aresymptoms of Loop Errors?
Answer:
The errors in the loop condition such that it is not giving desired results or it is not running accordingly.There are different types of loop errors which are as following:-
1.Infinite loop:-When the is not able to stop then the error is called infinite loop. for ex:-
int i=1;
while(i!=0)
{
cout<<"I am King"<<endl;
i++;
}
2.Off by one error:-This error mostly happens in loop for arrays as indexing of the array is from 0 to size-1 .So looping over the array up to the size is a off by one error.
3.Equality v/s assignment operator error:-In this error the condition in the loop is like this d=f which is wrong since = is assignment operator it assigns the value of f to d while d==f checks that the value of d and f are equal or not.
4.&& v/s || loop error:- In this error we use and operator (&&) instead of or operator (||) and vice versa.
symptoms of loop errors are not the desired output.
Where does execution resume after an exception has been thrown and caught?
Answer:
The execution resumes in the finally block if one exists or otherwise from the next statement following the try...catch block.
Explanation:
Once an exception has been thrown and caught in the code, the execution continues with the statements in the finally block if one exists. If there is no finally block defined then execution resumes from the next statement following the try... catch block. For example:
try{
//An exception is raised
}
catch (Exception e){
//Exception is handled
}
System.out.println("After try...catch");
In this code segment, the next statement to be executed after catch is the System.out.println();
One of the most powerful leadership tools aproject manager is has his/her_______
Own knowledge
Own experience
Own behavior
Own reference
Answer:
Own Experience
Explanation:
Great question, it is always good to ask away and get rid of any doubts that you may be having.
One of the most powerful leadership tools a project manager has is his/her experience
The most effective leadership trait a project manager can have is experience. Knowing what works and what doesn't can mean the difference between a successful project or a failure. A leader with experience has already developed the behavior needed to deal with the employees, as well as make sure everyone is doing what they are supposed to. They also have dealt with many common leadership problems and know how to solve them in a quick and timely manner. This way things move forward according to plan.
I hope this answered your question. If you have any more questions feel free to ask away at Brainly.
Which of the following is not a standard method called as partof the JSP life cycle?
? jspInit()
? jspService()
? _jspService()
? jspDestroy()
Final answer:
The method _jspService() is not a standard part of the JSP lifecycle; it's an implementation detail by JSP containers but not to be directly used by developers.
Explanation:
The question pertains to the standard methods in the JavaServer Pages (JSP) life cycle. In JSP, there are several lifecycle methods that the JSP container (like Tomcat or Jetty) calls to manage the JSP page. These methods include jspInit() for initialization, jspService() for processing requests, and jspDestroy() for cleanup when the JSP is about to be destroyed. However, the method _jspService() is not part of the JSP life cycle and is actually an implementation detail used by some JSP containers. This method is typically generated by the JSP container during JSP to servlet conversion and should not be called directly by developers.
Write a function called vowels that takes a string s and returns the number of vowels in the string: i.e. the number of letters that are
Answer:
int vowels(string s){
int count=0;
for(int i=0;s[i]!='\0';i++){
if(s[i]=='a' || s[i]=='e' ||s[i]=='i'||s[i]=='o'||
s[i]=='u'||s[i]=='A'||s[i]=='E'||s[i]=='I'||
s[i]=='O' || s[i]=='U'){
count++;
}
}
return count;
}
Explanation:
Create the function with return type int and declare the parameter as a string.
define the variable count for storing the output. Then, take a for loop for traversing each character of the string and if statement for checking the condition of the vowel.
vowel are 'a', 'e', 'i', 'o', 'u' in lower case. we must take care of the upper case as well.
vowel are 'A', 'E', 'I', 'O', 'U' in upper case.
if the condition is true to update the count by 1.
This process continues until the string not empty.
and finally, return the count.
Discuss some of the emerging trends in information technology (e.g. computer hardware, software, data analysis). What impact may they have on your daily life (e.g., workplace, school, recreation)?
Answer:
Artificial Intelligence and IOT
Explanation:
Great question, this is an important topic in the world today.
One huge emerging trend in the world of information technology today is Artificial Intelligence and IOT also known as the Internet of Things. Artificial Intelligence today can be found in just about any smart device. They are capable of searching the internet instantaneously in order to solve a problem and compare hundreds and thousands of scenarios in a couple of seconds in order to answer questions and solve problems.
Combining this with the Internet of Things , which is a worldwide web of interconnected devices. Artificial Intelligence has the ability to change our world beyond recognition in the next decade, by automatizing everything that requires human involvement to complete today.
I hope this answered your question. If you have any more questions feel free to ask away at Brainly.
Compare and contrast Superscalarand VLIW processor technology
Answer:
VLIW stands for the very long instruction word and it basically works on the principle of RISC that is reduced instruction set computer. It is the combination of the multiple instructions by the compiler. It has simple hardware architecture and instruction and while designing in VLIW compiler are performed the difficult tasks.
In super scalar, it is the processor with multiple pipeline instructions, which basically allowed various instruction to be process simultaneously in each cycle. It is basically the method of parallel computing which are used in various processor.
- If we place records from different tables in adjacent____________, it would increase efficiency of a database.
Physical location
Table
Form
empty location
Answer: Physical location
Explanation:
If we place records from, different tables in adjacent physical location, it would increases efficiency of a databases as, database consolidates records from previously store in separate files into a common file. Databases are fast and efficient when they are dealing with large data. When all the information is stored in multiple physical location it is also known as distributed database, as physical location helps to provide the physical and logical path and also protect from default locations in the database.
) Doyou know applets and Java Beans in Java? Please briefly state eachone with an example.
Answer:
Java applets are the small programs written in java language.It is usually present on the web page .It has the also the property of working on HTML page and is client side based program which helps in making any website more attracting and active.
Example-the applet which is running a particular window can be overwritten in other window as well.
Java Beans are the type of class that are used for encapsulating the other object in it.The execution and use of java beans can be don by using builder tools. It follows the getter and setter technique that help in providing the value of different properties of by getting and setting it.
Example- AWT classes, Swing
Answer:
Java applets are the small programs written in java language.It is usually present on the web page .It has the also the property of working on HTML page and is client side based program which helps in making any website more attracting and active.
Example-the applet which is running a particular window can be overwritten in other window as well.
Java Beans are the type of class that are used for encapsulating the other object in it.The execution and use of java beans can be don by using builder tools. It follows the getter and setter technique that help in providing the value of different properties of by getting and setting it.
Example- AWT classes, Swing
Where do you define parameter variables?
Answer:
In the function definition.
Explanation:
Function is the block of statement which is used to perform a special task.
when we define the function, we have call the function as well without calling function is not used.
syntax for calling:
name(argument_1,argument_1,...);
we put the argument in the calling to function.
syntax for defining:
type name(parameter_1,parameter_2,.....)
{
statement;
}
In the definition, we declare parameter for use the value of arguments pass in the calling.
Therefore, the answer is in the function definition.
Write a C++ program to convert rainfall in inches to rainfallin millimeters given that:
1 inch = 25.4 mm
Sample output: 4 inches = 101.6 mm of rain
Answer:
#include <iostream>
using namespace std;
int main() {
float rainfall_inch,rainfall_mm;//declaring two variables of float type to hold the value rain in inches and mm.
cin>>rainfall_inch;//taking input of rain in inches..
rainfall_mm=rainfall_inch*25.4;//conveting inches to mm and storing in raingfall_mm.
cout<<rainfall_inch<<" inches = "<<rainfall_mm<<" mm of rain"<<endl;//printing the output.
return 0;
}
Explanation:
The above written program is in c++ for converting the rainfall in inches to mm.
I have taken two variables of type float to store the values of rainfall in inches and mm.
Conversion of inches to mm.
Printing the result.
Lube job---------$18.00
The question pertains to an automotive service known as a 'Lube Job,' which costs $18.00 and involves lubricating vehicle parts to ensure they function properly.
Explanation:The phrase 'Lube job---$18.00' refers to a service commonly offered at automotive maintenance and repair shops. This service includes lubricating the chassis and other moving parts of the vehicle to ensure proper functionality and to prevent wear and tear. The cost indicated is $18.00, which would be the price a customer is expected to pay for this service. This topic relates to business operations, particularly in the area of automotive service and maintenance.
In the structure of a conventional processor, what is the purpose of the data path?
Answer:
Datapath :- It is the hardware that performs every required operation for example:-registers,ALU, and internal buses.
Datapath is the brain of a processor because it executes the fetch-decode-execute cycle.
Steps in data path design are as following:-
(1) Find the instruction classes and formats in the ISA.
(2) Design data path components and connections for each instruction class .
(3) Create the data path segments designed in (Step 2) to yield a fused data path.
Simple datapath parts include memory (stores the current instruction), PC (program counter) and ALU(Arithmetic and Logic Unit).
Convert the following Base 10 (decimal) numbers to base 2(binary):
107
200
Answer:
107₁₀ - 1101011
₂ (Binary representation)
200₁₀- 11001000₂ (Binary representation)
Explanation:
Converting from Decimal to binary:
Procedure -
1. Divide the number by 2, write the reminder separately.
2. Divide the divisor by 2, write the reminder before the previously written reminders.
Keep doing this till you get your divisor as 1.
Then we will write the divisor before the written reminders and that will be the binary representation.
For 107 :
We divide 107 by 2 ,we get the divisor 53 and remainder 1
( 1 )
Then,we will divide this divisor i.e 53 by 2,we get divisor 26 and remainder 1 ,we will put this remainder before the previous one.
( 1 1 )
Then,we will divide this divisor i.e 26 by 2,we get divisor 13 and remainder 0 ,we will put this remainder before the previous one.
( 0 1 1 )
Then,we will divide this divisor i.e 13 by 2,we get divisor 6 and remainder 1 ,we will put this remainder before the previous one.
( 1 0 1 1 )
Then,we will divide this divisor i.e 6 by 2,we get divisor 3 and remainder 0,we will put this remainder before the previous one.
( 0 1 0 1 1 )
Then,we will divide this divisor i.e 3 by 2,we get divisor 1 and remainder 1 ,we will put this remainder before the previous one.
( 1 0 1 0 1 1 )
As we get the divisor=1,then we will stop.we will write the divisor before the written reminders.
( 1 1 0 1 0 1 1 )
This will be the binary representation of 107.
For 200 :
We divide 200 by 2 ,we get the divisor 100 and remainder 0
( 0 )
Then,we will divide this divisor i.e 100 by 2,we get divisor 50 and remainder 0 ,we will put this remainder before the previous one.
( 0 0 )
Then,we will divide this divisor i.e 50 by 2,we get divisor 25 and remainder 0 ,we will put this remainder before the previous one.
( 0 0 0 )
Then,we will divide this divisor i.e 25 by 2,we get divisor 12 and remainder 1 ,we will put this remainder before the previous one.
( 1 0 0 0 )
Then,we will divide this divisor i.e 12 by 2,we get divisor 6 and remainder 0 ,we will put this remainder before the previous one.
( 0 1 0 0 0 )
Then,we will divide this divisor i.e 6 by 2,we get divisor 3 and remainder 0 ,we will put this remainder before the previous one.
( 0 0 1 0 0 0 )
Then,we will divide this divisor i.e 3 by 2,we get divisor 1 and remainder 1,we will put this remainder before the previous one.
( 1 0 0 1 0 0 0 )
As we get the divisor=1,then we will stop.we will write the divisor before the written reminders.
( 1 1 0 0 1 0 0 0 )
This will be the binary representation of 200.
Make a ladtract class that has 2 fields, one for the tractor's length and one for the width. The class should have a method that returns the tract's area as well as an equals methos and a toString method.
Explanation:
Below is the java code for the ladtract class :-
public class ladtract
{
private double length; //length of tractor
private double width; //width of tractor
public double calculateArea(){
return length*width; //calculate and return the area of the tractor
}
public boolean equals(Object o) {
if (o == this) { //check if it's the same object
return true;
}
if(o.length==this.length && o.width==this.width){ //check if the length and width are same for both objects
return true;
}
return false;
}
public String toString(){
return "Area="+calculateArea(); //return the area of the tractor as a string
}
}
Organizations are struggling to reduce and right-size their information foot-print, using data governance techniques like data cleansing and de-duplication. Why is this effort necessary? Briefly explain.
The effort is necessary in making sure that the data is meaningful, correct, and timely. Many analysts are increasingly focused on quality on a per-attribute basis instead of a per-report basis. This will avoid excess control of access and instead focus on meaning. A data-driven organization that includes a comprehensive data cleanup is able to make informed choices that maximize value on strategic investments.
This means to increase a value by one..
1. decrement
2. increment
3. modulus
4. parse
5. None of these
Increment means to increase a value by one. Incremental change is change in a value by one. Hope this helps!
Assume the following variables are defined: int age; double pay; char section; write a single c instatement that will read input into each of these variables. in c ++
Answer:
scanf("%d %lf %c", &age, &pay, §ion);
Explanation:
To read the value in c program, the instruction scanf is used.
To read the integer value, use the %d format specifier in the scanf and corresponding variable name age with ampersand operator.
To read the double value, use the %lf format specifier in the scanf and corresponding variable name pay with ampersand operator.
To read the character value, use the %c format specifier in the scanf and corresponding variable name section with ampersand operator.
The ____ method lets you add characters at a specific location within a StringBuilder object.
a.
append()
b.
charAt()
c.
insert()
d.
setCharAt()
Answer:
insert()
Explanation:
StringBuilder is a dynamic object which is used to create the string without any size restriction.
let discuss the option:
option a: append()
It is a function which is used to append the two string. but it not add the character at specific location.
option b: charAt()
it is function which is used to get the character at specific location.
option c: insert()
It is a function which is used to add the character at specific location, it takes two parameter location and character.
option d: setCharAt()
it is a function which is use to update the character at specific location.
Therefore, the correct option is c.
Using the flowchart above, which decision statement will correctly check that hoursWorked is greater than or equal to the FULL_WEEK constant?
a.
hoursWorked >= FULL_WEEK
b.
hoursWorked > FULL_WEEK
c.
hoursWorked == FULL_WEEK
d.
hoursWorked != FULL_WEEK
Answer:
hoursWorked >= FULL_WEEK
Explanation:
The operator sign and meaning:
> means greater than
< means less than
= equal sign
! means NOT operator
== means equal equal sign
Option a: hoursWorked >= FULL_WEEK
It means hoursWorked is greater than or equal to FULL_WEEK.
Option b: hoursWorked > FULL_WEEK
It means hoursWorked is greater than to FULL_WEEK.
Option c: hoursWorked == FULL_WEEK
It means hoursWorked is equal equal to FULL_WEEK.
Option d: hoursWorked != FULL_WEEK
It means hoursWorked is not equal to FULL_WEEK.
Therefore, Option a is the correct option.
The correct decision statement to check if 'hoursWorked' is greater than or equal to 'FULL_WEEK' is 'a. hoursWorked >= FULL_WEEK'. This includes scenarios where 'hoursWorked' is exactly a full week or more.
Explanation:The decision statement that will correctly check whether hoursWorked is greater than or equal to the FULL_WEEK constant is:
a. hoursWorked >= FULL_WEEK
This statement checks if the variable hoursWorked is at least equal to the value of the FULL_WEEK constant. It covers both the scenario where hours worked are exactly equal to a full week and any amount of hours that is greater. In contrast:
b. is more than seven hours.c. only checks for exact equality with seven hours.d. checks for inequality, meaning not equal to seven hours.All of the following are guidelines for effective small talk EXCEPT
a.discuss controversial topics.
b.avoid monologuing.
c.stress similarity rather than differences.
d.answer questions with sufficient elaboration.
Answer:
A - Discuss controversial topics
Explanation:
Small talk refers to polite, informal conversation that people engage in during social occasions. It is meant to be lighthearted, usually concerning unimportant topics. Therefore, the discussion of controversial topics goes against the purpose and characterization of effective small talk.