Create an interface called Runner. The interface has an abstract method called run() that displays a message describing the meaning of run to the class. Create classes called Machine, Athlete, and PoliticalCandidate that all implement Runner.
The run() should print the following in each class:
Machine - When a machine is running, it is operating.
Athlete - An athlete might run in a race, or in a game like soccer.
PoliticalCandidate - A political candidate runs for office.
----------------------------------------------------------------------------------------------------
public class Athlete implements Runner
{
public void run()
{
// write your code here
}
}
--------------------------------------------------------------------------------------
public class DemoRunners
{
public static void main(String[] args)
{
Machine runner1 = new Machine();
Athlete runner2 = new Athlete();
PoliticalCandidate runner3 = new PoliticalCandidate();
runner1.run();
runner2.run();
runner3.run();
}
}
------------------------------------------------------------------------------------------
public class Machine implements Runner
{
public void run()
{
// write your code here
}
}
----------------------------------------------------------------------------------------------------
public class PoliticalCandidate implements Runner
{
public void run()
{
// write your code here
}
}
----------------------------------------------------------------------------------------------------
public interface Runner
{
// write your code here
}
----------------------------------------------------------------------------------------------------
Answers
Answer:
Here is the interface Runner:
public interface Runner { //interface Runner
public abstract void run(); } //abstract method run that displays a message describing the meaning of run to the class
/*Here Runner is the interface which is an abstract class. It is used to group related methods such as here is run method with empty body. An abstract method run() does not have a body. The body is provided by the sub classes Machine, Athlete, and PoliticalCandidate that all implement Runner. */
Explanation:
Here is the Athlete class:
public class Athlete implements Runner { //class that implements Runner interface
public void run() { //interface method accessed by Athlete to provide its body according to describe the meaning of run to the class
System.out.println("An athlete might run in a race, or in a game like soccer."); } } //prints this message
Here is the Machine class:
public class Machine implements Runner {
public void run() {
System.out.println("When a machine is running, it is operating."); }}
Here is the PoliticalCandidate class:
public class PoliticalCandidate implements Runner {
public void run() {
System.out.println("A political candidate runs for office."); } }
/*To access the interface Runner method run(), the Runner must be "implemented" by Machine, Athlete, and PoliticalCandidate classes with the implements keyword. The body of the interface method run() is provided by the "implement" class */
Here is the DemoRunners class:
public class DemoRunners { //class name
public static void main(String[] args) { //start of main method
Machine runner1 = new Machine(); //creates object of Machine class
Athlete runner2 = new Athlete(); //creates object of Athlete class
PoliticalCandidate runner3 = new PoliticalCandidate(); //creates object of PoliticalCandidate class
runner1.run(); //uses object of Machine class to call run method
runner2.run(); //uses object of Athlete class to call run method
runner3.run(); } } //uses object of PoliticalCandidate class to call run method
When runner1.run() is called it invokes the run() method of class Machine which displays the message:
When a machine is running, it is operating.
When runner2.run() is called it invokes the run() method of class Athlete which displays the message:
An athlete might run in a race, or in a game like soccer.
When runner3.run() is called it invokes the run() method of class PoliticalCandidate which displays the message:
A political candidate runs for office.
The screenshot of the program is attached.
Related Questions
Write a program whose inputs are three integers, and whose output is the smallest of the three values. Use else-if selection and comparative operators such as '<=' or '>=' to evaluate the number that is the smallest value. If one or more values are the same and the lowest value your program should be able to report the lowest value correctly. Don't forget to first scanf in the users input.
Ex: If the input is: 7 15 3
the output is: 3
You should sketch out a simple flowchart to help you understand the conditions and the evaluations needed to determine what number is the correct answer. This type of tool can help determine flaws in a logical design.
Answers
Answer:
The Program written in C is as follows:
#include <stdio.h>
int main() {
int num1, num2, num3, smallest;
printf("Enter any three numbers: ");
scanf("%d", &num1); scanf("%d", &num2); scanf("%d", &num3);
if(num1 <= num2 && num1 <= num3) {
smallest = num1;
}
else if(num2 <= num1 && num2 <= num3) {
smallest = num2;
}
else {
smallest = num3;
}
printf("Smallest: ");
printf("%d", num3);
return 0;
}
Explanation:
This line declares necessary variables
int num1, num2, num3, smallest;
This line prompts user for input of three numbers
printf("Enter any three numbers: ");
This lines get input for the three numbers
scanf("%d", &num1); scanf("%d", &num2); scanf("%d", &num3);
The following if/else statements determine the smallest of num1, num2 and num3 and assigns to variable smallest, afterwards
if(num1 <= num2 && num1 <= num3) {
smallest = num1;
}
else if(num2 <= num1 && num2 <= num3) {
smallest = num2;
}
else {
smallest = num3;
}
The next two lines print the smallest value
printf("Smallest: ");
printf("%d", num3);
The purpose of performance profiling (experimental analysis) is to measure the program/algorithm performance. Assume that you have performed an experimental analysis of an algorithm, and profiling returned the following
times: for instances of sizes 2^10, 2^11, 2^12, 2^13, 2^14
the corresponding times are approximately 300 , 510 , 905 , 1750 , 3305 milliseconds.
In these collected running times, there is an extra overhead resulting from clocking program performance and OS functions calls, and this overhead has to be considered in analyzing data. That is, the measured time consists of two components: the time for executing the operations, plus the overhead from profiling.
The estimated overhead due to profiling is about 100 milliseconds independently of the input size. (that is, 100 is always an additive ``constant'' in the collected times).
Based on these experimental results, what is the running time, as a function of the problem size, for executing this algorithm? (c is a constant).
A. O(underroot(n)).
B. O(n^2).
C. O(n).
D. None of the listed.
E. O(n log n).
Answers
Answer:
C. O(n).
Explanation:
for better understanding, the os is a program that helps in telling how much resources can be used and when processor can be accessed.
to each programme data structures would load and unload every time that a programme is to be run.
while a programme is being managed there would be extra overheads and based on whatever type of os or programme that this is, it may or may not have fixed overhead
from our question overhead is fixed at 100ms
we have,
net time as: 300-100, 510-100, 905-100, 1750-100, 3305-100,
which is, 200, 410, 805, 1650, 3205
when we double 2¹⁰ to 2¹¹ to 2¹² etc, the programme ran is also doubling
this says that run time is same as size of instance n
O(n)
A have a string, called "joshs_diary", that is huge (there was a lot of drama in middle school). But I don't want every one to know that this string is my diary. However, I also don't want to make copies of it (because my computer doesn't have enough memory). Which of the following lines will let me access this string via a new name, but without making any copies?
a. std::string book = joshs_diary;
b. std::string & book = joshs_diary; const
c. std::string * book = &joshs_diary;
d. std::string book(joshs_diary);
e. const std::string & book = joshs_diary;
f. const std::string * const book = &joshs_diary;
g. std::string * book = &joshs_diary;
Answers
Answer:
C and G
Explanation:
In C language, the asterisks, ' * ', and the ampersand, ' & ', are used to create pointers and references to pointers respectively. The asterisks are used with unique identifiers to declare a pointer to a variable location in memory, while the ampersand is always placed before a variable name as an r_value to the pointer declared.
Jax needs to write a block of code that will organize a list of items alphabetically. Which function should he use? append() print() sort() order()
Answers
In python, the sort() function will alphabetically sort a list of strings
To write a block of code that will organize a list of items alphabetically In python, the sort() function will alphabetically sort a list of strings.
What is python?A high-level, all-purpose programming language is Python. Code readability is prioritized in its design philosophy, which makes heavy use of indentation. Python uses garbage collection and has dynamic typing. It supports a variety of paradigms for programming, including functional, object-oriented, and structured programming.
Python is a popular computer programming language used to create software and websites, automate processes, and analyze data. Python is a general-purpose language, which means it may be used to make many various types of applications and isn't tailored for any particular issues.
Sorting in Python simply means putting the data in a specific format or order. The order of the data pieces can be sorted either ascendingly or descendingly. Python programming contains certain built-in functions that allow you to sort the list's elements, just like C++ and Java.
Therefore, Thus option (C) is correct.
Learn more about python here:
https://brainly.com/question/18502436
#SPJ2
Create a survey questionnaire with at least 10 questions to find out how teens are using social networking sites. Your data should contain a minimum of 30 valley questionnaires in each respondent must answer all the questions for that questionnaire to be valid. Analyze the data collected using charts or graphs. What are your findings from the survey? Collate the findings by summarizing the answers for each question. Present a graph or chart to represent the data you collected.
Answers
Possible Questions:
- What social media platforms do you use on a daily basis?
- Where did you hear about these social media platforms?
- What made you join these social media platforms?
- What social media platform(s) do you prefer the most?
- Why might you suggest these social media platforms to a friend?
- What does having and using this platform mean to you?
- What does your preferred platform allow you to do?
- Has using this platform changed you in any way? (Are you more connected, concerned, aware, etc.)
"Jean-luc Doumont notes that slide software is an effective presentation tool, especially when the speech goal is to:"
Answers
Hi, your question is incomplete. Here are the options:
A. persuade the audience.
B, encourage critical thinking.
C. increase discussion.
D. relay detailed information
Answer:
D. relay detailed information
Explanation:
Indeed, slide software (like MS Powerpoint) would be an effective presentation tool, especially when the speech goal is to relay detailed information.
For example, a graph showing the exponential growth in the number of smartphone users in the United States for the last 15 years would be effectively presented using a slide that shows this data because it will allow the audience to easily see the detailed information.
The intentional defacement or destruction of a website is called: Group of answer choices spoofing. cybervandalism. cyberwarfare. phishing. pharming.
Answers
Answer:
cybervandalism
Explanation:
The intentional defacement or destruction of a website is called cybervandalism. This ultimately implies that, cybervandalism is carried out or done by someone through the use of computer technology such as an internet to destroy data (informations).
Additionally, the defacement or destruction of a website simply means changing the appearance and data relating a website. Some of the tools use for cybervandalism is a file transfer protocol (FTP), structured query language (SQL) injection etc.
In may 2005, President Donald Trump's Wikipedia web page was vandalized by an attacker.
It should be noted that intentional defacement or destruction of a website is called cybervandalism.
Cybervandalism can be regarded as the damage or destruction which is been carried out in digital form.
It may involves the cyber vandals which involves the defacing of a website.Therefore, cybervandalism serves as intentional defacement or destruction of a website.
Learn more about cybervandalism at;
https://brainly.com/question/11408596
Who is a software engineer
Answers
Hope this helps !
True or false? The following deterministic finite-state automaton recognizes the set of all bit strings such that the first bit is 0 and all remaining bits are 1’s.
Answers
Answer:gjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjj
Explanation:
what is 9x9x9? pls help
Answers
Answer:
729. is answer...........
Answer:
729
Explanation:
create a boolean variable called sucess that will be true if a number is between -10 and 10 inclusively python
Answers
Answer:
success = -10 <= number <= 10
Explanation:
I check that -10 is less than or equal to number, and number is less than or equal to 10.
40 POINTS IF YOu ANSWER FOR EACH STEP.
When your friend DaJuan turns on his computer, he hears four beeps. The computer won’t fully boot. DaJuan has a Dell computer with a quad core processor and has recently upgraded his RAM.
Apply the troubleshooting methodology to help DaJuan understand and resolve his problem. The steps of the methodology are listed for you. Copy them into a document and use them to write suggestions for DaJuan at each step.
1.Identify the Problem
2.Internet Research
3.Establish a Theory of Probable Cause
4.Test the Theory
5.Establish a Plan of Action
6.Implement the Solution or Escalate
7.Verify Full System Functionality
8.Document Findings.
Answers
Answer:
4 beeps indicate a Memory Read / Write failure. Try re-seating the Memory module by removing and reinserting it in the slot. This could mean it could've just jiggled loose after a while or dust, there could be a hundred other problems but those are the two most common.n
Explanation:
A Windows user is locked out of her computer, and you must log into the local administrator account HelpdeskAdmin. Which would you use in the username field?
Answers
Answer: .\HelpdeskAdmin
Explanation:
If you wanted to log in as the local administrator then for the Username put a dot (.) and a backslash (\) in front of the Admin username.
The dot(.) will ensure that Windows knows that you are logging into a local computer as the administrator and so will grant you access. The relevant username therefore is, ''.\HelpdeskAdmin''.
I will use .\HelpdeskAdmin as the username field.
What is a username field?The username-field is known to be a kind of command that is said to specifies the value for the name that shows the characteristics in the login form and it is one that identifies the username field.
Note that the use of the .\HelpdeskAdmin as the username field is the right thing to do as the dot(.) will make sure that the Windows knows that the user is logging into a computer as the administrator.
Learn more about local administrator from
https://brainly.com/question/14364696
Write a program which:
Allows the user to input any of the following string: A1, A2, B1, B2, C1, C2
If the input is from the A category, the program must output "Footwear: ". And if the input is A1 it should output "Shoes" and if A2 it should output "Trainers"
B should output "Tops: "
B1 "Jackets"
B2 "TShirts"
C "Pants: "
C1 "Trousers"
C2 "Shorts"
If the user has not entered the correct data, the program must output "Incorrect input"
Answers
Answer:
Ill do this in C# and Java
Explanation:
C#:
public static void Main(string[] args)
{
string input = Console.ReadLine();
switch (input)
{
case "A1":
Console.WriteLine("Footwear:");
Console.WriteLine("Shoes");
break;
case "B1":
Console.WriteLine("Tops:");
Console.WriteLine("Jackets");
break;
case "C1":
Console.WriteLine("Pants:");
Console.WriteLine("Trousers");
break;
case "A2":
Console.WriteLine("Footwear:");
Console.WriteLine("Trainers");
break;
case "B2":
Console.WriteLine("Tops:");
Console.WriteLine("TShirts");
break;
case "C2":
Console.WriteLine("Pants:");
Console.WriteLine("Shorts");
break;
default:
Console.WriteLine("Incorrect Input");
break;
}
}
Java:
public static void main(String[] args)
{
Scanner myObj = new Scanner(System.in); // Create a Scanner object
String input = myObj.nextLine();
{
switch (input)
{
case "A1":
System.out.println("Footwear:");
System.out.println("Shoes");
break;
case "B1":
System.out.println("Tops:");
System.out.println("Jackets");
break;
case "C1":
System.out.println("Pants:");
System.out.println("Trousers");
break;
case "A2":
System.out.println("Footwear:");
System.out.println("Trainers");
break;
case "B2":
System.out.println("Tops:");
System.out.println("TShirts");
break;
case "C2":
System.out.println("Pants:");
System.out.println("Shorts");
break;
default:
System.out.println("Incorrect Input");
break;
}
}
Which of the following is NOT solely an Internet-based company?
Netflix®
Amazon®
Pandora®
CNN®
Answers
Answer:
I think it's Pandora, though I am familiar with others
Answer:
CNN
Explanation:
what is scientific and
Answers
Answer:
And what??????????????
In Microsoft windows which of the following typically happens by default when I file is double clicked
Answers
Answer:
when a file is double clicked it opens so you can see the file.
Explanation:
Write a program that asks the user to enter a 10-character telephone number in the format XXX-XXX-XXXX. The application should display the telephone number with any alphabetic characters that appeared in the original translated to their numeric equivalent. For example, if the user enters 555-GET-FOOD, the application should display 555-438-3663.
Answers
In python:
number = input("Enter a 10-character phone number: ")
for i in number:
if i.isalpha():
if i == "A" or i == "B" or i == "C":
i = "2"
elif i == "D" or i == "E" or i == "F":
i = "3"
elif i == "G" or i == "H" or i == "I":
i = "4"
elif i == "J" or i == "K" or i == "L":
i = "5"
elif i == "M" or i == "N" or i == "O":
i = "6"
elif i == "P" or i == "Q" or i == "R" or i == "S":
i = "7"
elif i == "V" or i == "T" or i == "U":
i = "8"
elif i == "W" or i == "X" or i == "Y" or i == "Z":
i = "9"
print(i, end="")
I hope this helps!
Code:
def phonenumber():
alpha = ['A','B','C','D','E','F','G','H','I','J','K','L','M','N','O','P','Q','R','S','T','U','V','W','X','Y','Z']
n =[2,2,2,3,3,3,4,4,4,5,5,5,6,6,6,7,7,7,7,8,8,8,9,9,9,9]
phone = input('Enter phone number in format of XXX-XXX-XXXX : ').upper()
index = 0
for index in range(len(phone)):
if phone[index].isalpha():
print (n[alpha.index(phone[index])], end = ' ')
else:
print (phone[index], end = ' ')
phonenumber()
Compilation output is attached below:
Learn More:https://brainly.com/question/15687460
If you want Nud3s add me on sc Kermit4lyfe1
Answers
Answer:
que pinga this is a hw website not snap
Explanation:
Plz answer me will mark as brainliest
Answers
QUICK!! URGENT!! I'll provide more point if u give me the right code for this specific program. I truly don't understand if statements :(
Answers
Answer:
5467373737474737377474747
Which part of the formula is the argument?
=COUNTIF(A1:E59, "Greene City")
=
()
COUNTIF
A1:E59
Answers
Answer:
e on edege
Explanation:
just took the question on edge
Answer:
Guy above is right!
Explanation:
Jake or Peggy Zale must fix quickly the fax.
Answers
Answer:
Sentence: Jack or Peggy Zale must fix quickly the fax.
Correct: Either Jack or Peggy Zale must quickly fix the fax.
There are 2 errors in these sentence construction. In stating two persons as an option we must use the word "either" to indicate that you only have two choose from the two of them. The word "
Explanation:
The correct sentence would be "either Jake or Peggy Zale must quickly fix the fax".
In the question construction, there is a conjunction and misarrangement error.
In conclusion, the word " "either Jake or Peggy Zale must quickly fix the fax" is correct
Read more about conjunction
brainly.com/question/8094735
If the propagation delay through a full-adder (FA) is 150 nsec, what is the total propagation delay in nsec of an 8-bit ripple-carry adder
Answers
Answer:
270 nsec
Explanation:
Ripple-carry adder is a combination of multiple full-adders. It is relatively slow as each full-adder waits for the output of a previous full-adder for its input.
Formula to calculate the delay of a ripple-carry adder is;
= 2( n + 1 ) x D
delay in a full-adder = 150 nsec.
number of full-adders = number of ripple-carry bits = 8
= 2 ( 8 + 1 ) x 150
= 18 x 150
= 270 nsec
Given the dictionary, d, find the largest key in the dictionary and associate the corresponding value with the variable val_of_max. For example, given the dictionary {5:3, 4:1, 12:2}, 2 would be associated with val_of_max. Assume d is not empty.
Answers
Answer:
Here is the Python program:
d = {5:3, 4:1, 12:2}
val_of_max = d[max(d.keys())]
print(val_of_max)
Explanation:
The program works as follows:
So we have a dictionary named d which is not empty and has the following key-value pairs:
5:3
4:1
12:2
where 5 , 4 and 12 are the keys and 3, 1 and 2 are the values
As we can see that the largest key is 12. So in order to find the largest key we use max() method which returns the largest key in the dictionary and we also use keys() which returns a view object i.e. the key of dictionary. So
max(d.keys()) as a whole gives 12
Next d[max(d.keys())] returns the corresponding value of this largest key. The corresponding value is 2 so this entire statement gives 2.
val_of_max = d[max(d.keys())] Thus this complete statement gives 2 and assigns to the val_of_max variable.
Next print(val_of_max) displays 2 on the output screen.
The screenshot of program along with its output is attached.
Kara's teacher asked her to create a chart with horizontal bars. Which chart or graph should she use?
Bar graph
Column chart
Line graph
Pie chart
Answers
Answer:
The answer to this question is given below in the explanation section.
Explanation:
The correct answer to this question is the Bar graph.
Because we use this chart type to visually compare values across a few categories when the charts show duration or when the category text is long.
However, we can present information similarly in the bar graph and in column charts, but if you want to create a chart with the horizontal bar then you must use the Bar graph. In an Excel sheet, you can easily draw a bar graph and can format the bar graph into a 2-d bar and 3-d bar chart.
A column chart is used to compare values across a few categories. You can present values in columns and into vertical bars.
A line graph chart is used to show trends over months, years, and decades, etc.
Pie Chart is used to show a proportion of a whole. You can use the Pie chart when the total of your numbers is 100%.
Answer:
Bar graph option A
Explanation:
I did the test
In HTML5, the
(line break) tag does not require a closing tag.
true or false
Answers
Write code that Uses the range() in a for loop to iterate over the positions in user_names in order to modify the list g
Answers
Answer:
Explanation:
The range() function is a built-in function in the Python programming language. In the following code, we will use this function to iterate over all the positions in the array called user_names and add them to the list g. (assuming that is what was meant by modifying the list g)
for i in range( len(user_names) ):
g.append(user_names[i])
This simple 2 line code should do what you are asking for.
describe how to get started on a formal business document by using word processing software
Answers
Answer:Click the Microsoft Office button.
Select New. The New Document dialog box appears.
Select Blank document under the Blank and recent section. It will be highlighted by default.
Click Create. A new blank document appears in the Word window.
Explanation:
A____server translates back and forth between domain names and IP addresses.
O wWeb
O email
O mesh
O DNS
Answers
Answer:
DNS
Explanation:
Hope this helps