Answer:
A lower bound on the optimal integer value.
Explanation:
The question is poorly typed. The original question requires the optimal solution of the objective function of a minimization problem
I will answer this question base on the above illustration.
When an objective function is to be minimized, it means that the objective function will take the feasible solution with the least value.
The least value are often referred to as the lower bound.
After reading all L02 content pages in Lesson 02: Inheritance and Interfaces, you will complete this assignment according to the information below.Do not use the scanner class or any other user input request. You application should be self-contained and run without user input.Assignment ObjectivesPractice on implementing interfaces in JavaFootballPlayer will implement the interface TableMemberOverriding methodswhen FootballPlayer implements TableMember, FootballPlayer will have to write the real Java code for all the interface abstract methodsDeliverablesA zipped Java project according to the How to submit Labs and Assignments guide.O.O. Requirements (these items will be part of your grade)One class, one file. Don't create multiple classes in the same .java fileDon't use static variables and methodsEncapsulation: make sure you protect your class variables and provide access to them through get and set methodsAll the classes are required to have a constructor that receives all the attributes as parameters and update the attributes accordinglyAll the classes are required to have an "empty" constructor that receives no parameters but updates all the attributes as neededFollow Horstmann's Java Language Coding GuidelinesOrganized in packages (MVC - Model - View Controller)Contents
Solution :
App.java:
import Controller.Controller;
import Model.Model;
import View.View;
public class App
{
public static void main(String[] args) // Main method
{
Model model = new Model(); // Creates model object.
View view = new View(); // Creates view object.
Controller controller = new Controller(view, model); // Creates controller object that accepts view and model objects.
}
}
[tex]\text{Controller.java:}[/tex]
package Controller;
[tex]\text{impor}t \text{ Model.Model;}[/tex]
import View.View;
[tex]\text{public class Controller}[/tex]
{
Model model; // Model object
View view; // View object
public Controller(View v, Model m) // Method that imports both model and view classes as objects.
{
model = m;
view = v;
//view.basicDisplay(model.getData()); // basicDisplay method from View class prints FootballPlayer objects as Strings from Model class.
view.basicDisplay(model.getMembers().get(1).getAttributeName(3));
view.basicDisplay(model.getMembers().get(1).getAttribute(3));
view.basicDisplay(model.getMembers().get(1).getAttributeNames());
view.basicDisplay(model.getMembers().get(1).getAttributes());
view.basicDisplay("size of names=" + model.getMembers().get(1).getAttributeNames().size());
view.basicDisplay("size of attributes=" + model.getMembers().get(1).getAttributes().size());
}
}
FootballPlayer.java:
package Model;
import java.util.ArrayList;
public class FootballPlayer extends Person implements TableMember { // Used "extends" keyword to inherit attributes from superclass Person, while using "implements" to implement methods from TableMember interface.
private int number; // Creating private attribute for int number.
private String position; // Creating private attribute for String position.
public FootballPlayer(String name, int feet, int inches, int weight, String hometown, String highSchool, int number, String position) // Full parameter constructor for FootballPlayer object (using "super" keyword to incorporate attributes from superclass).
{
super(name, feet, inches, weight, hometown, highSchool); // Used super keyword to include attributes from superclass.
this.number = number; // Value assigned from getNumber method to private number instance variable for FootballPlayer object.
this.position = position; // Value assigned from getPosition method to private position instance variable for FootballPlayer object.
}
public FootballPlayer() // No parameter constructor for FootballPlayer object.
{
this.number = 0; // Default value assigned to private number instance variable under no parameter constructor for FootballPlayer object.
this.position = "N/A"; // Default value assigned to private position instance variable under no parameter constructor for FootballPlayer object.
}
Override
public String getAttribute(int n) // getAttribute method that is implemented from interface.
{
switch (n) { // Switch statement for each attribute from each FootballPlayer object. Including two local attributes, denoted by this. While the others are denoted by "super".
case 0:
return String.valueOf(this.number); // Use of the dot operator allowed me to discover String.valueOf method to output int attributes as a string.
case 1:
return this.position;
case 2:
return super.getName();
case 3:
return super.getHeight().toString();
case 4:
return String.valueOf(super.getWeight());
case 5:
return super.getHometown();
case 6:
return super.getHighSchool();
default:
return ("invalid input parameter");
}
}
Override
public ArrayList<String> getAttributes() // getAttributes ArrayList method that is implemented from interface.
{
ArrayList<String> getAttributes = new ArrayList<>();
for(int i = 0; i <= 6; i++){ // For loop to add each attribute to the getAttributes ArrayList from getAttributes method.
getAttributes.add(getAttribute(i));
}
return getAttributes;
}
Override
public String getAttributeName(int n) // getAttributeName method implemented from interface.
{
switch (n) { // Switch statement for the name of each attribute from each FootballPlayer object.
case 0:
return "number";
case 1:
return "position";
case 2:
return "name";
case 3:
return "height";
case 4:
return "weight";
case 5:
return "hometown";
case 6:
return "highSchool";
default:
return ("invalid input parameter");
}
}
Which of the following is not true about deep learning
Answer: it is also known as supervised learning
Explanation:
Deep learning is a sub field of machine learning and it refers to an artificial intelligence function that has to do with the imitation of the way that the brain works in the processing data which are used in making decisions.
It should be noted that deep learning is not thesame as supervised learning. While there's no creation of high-level abstraction of input features in the supervised learning, there's formation of abstractions of input features in deep learning.
full form of computer
Answer:
COMPUTER: Common Operating Machine Purposely used for Technological and Educational research.
Explanation:
By the way, a computer is not an acronym and is the name of an electronic device.
A computer is a simple machine that we can program for a lot of logical and arithmetic functions, and it executes our work according to our instructions.
in simple words, a computer is an electronic device that makes our work easy, and any computer that has been programmed for some set of works, it performs that task or works quickly and correctly.
as an IT manager write a memo to the student explaining the requirements of an ideal computer room
The correct answer to this open question is the following.
Memorandum.
To: IT class.
From: Professor Smith.
Date:
Dear students,
The purpose of this memorandum is to let you all know the requirements of an ideal computer room.
1.- The compute room should be a decent, large, space, ready to accommodate the number of students that are going to participate in class.
2.- The proper temperature levels. All the hardware can't stand too much heat. We need ventilators and the right temperature for safety purposes.
3.- The organization of the PCs on every desk must be precise in order to have enough room for everybody's participation and interaction.
4.- Have a proper fire suppression system in place. The risk of fire when working with electronics is considerable.
5.- Access control. The equipment is expensive and must be just for qualified students. Have the proper control-access system to keep the place safe.
Thank you for your attention.
With your cooperation, the computer room should be a place to learn and have fun learning new things.
x-1; while x ==1 disp(x) end, then the result a. infinity or b. (1)
Answer:
1 is the answer because ur trying to trick us
Explanation:
Use the variables k and total to write a while loop that computes the sum of the squares of the first 50 counting numbers, and associates that value with total. Thus your code should associate 11 22 33 ... 4949 50*50 with total. Use no variables other than k and total.
Answer:
total = 0
k = 1
while k <= 50:
total += k**2
k += 1
print(total)
Explanation:
Note: There some errors in the question. The correct complete question is therefore provided before answering the question as follows:
Use the variables k and total to write a while loop that computes the sum of the squares of the first 50 counting numbers, and associates that value with total. Thus your code should associate 1*1 + 2*2 + 3*3 +... + 49*49 + 50*50 with total. Use no variables other than k and total.
The answer is now explained as follows:
# Initialize k which is the number of term
k = 1
# Initialize total which is the sum of squares
total = 0
# Loop as long as k is less than or equal to 50.
while (k <= 50):
# Add the square of k to total in order to increase it
total = total + k * k
# Increase the value of k by one.
k += 1
# Finally, output total
print (total)
3 Marks] Q 2. A host has the IP address 196.22.44.133/21. What are the network address, broadcast address and valid host addresses for the IP subnet which the host is a member of
Answer:
Address: 192.22.44.133 11000000.00010110.0 0101100.10000101
Netmask: 255.255.128.0 11111111.11111111.1 0000000.00000000
Network: 192.22.0.0/17 11000000.00010110.0 0000000.00000000 (Class C)
Broadcast: 192.22.127.255 11000000.00010110.0 1111111.11111111
HostMin: 192.22.0.1 11000000.00010110.0 0000000.00000001
HostMax: 192.22.127.254 11000000.00010110.0 1111111.11111110
Explanation:
7. Lower than specified oil pressure is measured on a high-mileage engine. Technician A says that worn main or rod bearings could be the cause. Technician B says that a clogged
oil pump pickup screen could be the cause. Who is correct?
O A. Neither Technician A nor B
O B. Technician B
O C. Technician A
O D. Both Technicians A and B
Describe what happens at every step of our network model, when a node of one network...
Answer:
Each node on the network has an addres which is called the ip address of which data is sent as IP packets. when the client sends its TCP connection request, the network layer puts the request in a number of packets and transmits each of them to the server.
Write a function number_of_pennies() that returns the total number of pennies given a number of dollars and (optionally) a number of pennies. Ex: If you have $5.06 then the input is 5 6, and if you have $4.00 then the input is 4. Sample output with inputs: 5 6 4 506 400
Answer:
The function is as follows:
def number_of_pennies(dollars,pennies=0):
return dollars*100+pennies
Explanation:
This defines the function
def number_of_pennies(dollars,pennies=0):
This returns the number of pennies
return dollars*100+pennies
Note that, if the number of pennies is not passed to the function, the function takes it as 0
Answer:
Code is given as:-
#number_of_pennies function with one default argument with pennies as 0 when no pennies parameter is given
def number_of_pennies(dollars,pennies = 0):
pennies = dollars*100 + pennies #one dollar equals 100 pennies so calculate total pennies with this formula
return pennies #return total pennies
print(number_of_pennies(int(input()),int(input()))) #both Dollars and pennies
print(number_of_pennies(int(input()))) #Dollars only
Explanation:
Here is the sample code and output.
Decomposing and modularizing software refers to the process of combining a number of smaller named components having well-defined interfaces that describe component interactions into a single, larger monolithic system.
a. True
b. False
Answer:
b. False
Explanation:
Decomposing and modularizing means that a large software is being divided into smaller named components that have a well-defined interfaces which basically describes the component interactions. The main goal is to place these different functionalities as well as the responsibilities in different components.
Decomposition and modularization forms the principle of software design.
Hence, the answer is false.
Describe five examples of civil engineering projects.
Answer:
Hereare 5 types of civil engineering projects:
1 )Water engineering.
2)Construction and management engineering.
3)Structural engineering.
4)Geotechnical engineering.
5)Transport engineering.
diagram of a central processing unit
Use appropriate method calls from the List ADT to create the following list:
< 4 19 | 23 30 >
You should assume that L is passed to the function as an empty list.
public List buildList(List L)
{
}
Answer:
The complete method is as follows:
public List buildList(List L) {
L.insert(30);
L.insert(23);
L.insert(19);
L.insert(4);
return L; }
Explanation:
To complete the method, we make use of the insert() function.
This inserts elements of the list into list L. However, we have to start from the last element (i.e. in descending order)
So, the explanation is as follows:
L.insert(30); --- This inserts the last element
Continue inserting in descending order
L.insert(23);
L.insert(19);
Until the first list element is inserted
L.insert(4);
This returns the filled list L
return L;
A class of ArrayList is a redimensionable array in java. During built-in arrays, ArrayLists can dynamically change their size. Elements can be added and removed from an ArrayList when necessary, which helps the user handle this same memory, and the method described can be defined as follows:
Method code:
public List buildList(List L)//defining a method buildList that takes List variable L in parameter
{
L.insert("30");//Calling insert method that takes a value in parameter.
L.insert("23");//Calling insert method that takes a value in parameter.
L.insert("19");//Calling insert method that takes a value in parameter.
L.insert("4");//Calling insert method that takes a value in parameter.
L.next();//calling next method that prints list value
L.next();//calling next method that prints list value
return L;//return list value L
}
Method Description:
In this code, a List type of method "buildList" is declared that accepts the List type of variable L in parameter.Inside the method, an insert method is declared that accepts an integer variable in its parameter.In the next step, the next method is called which is used the ListIters interface method, the next item is returned in the list given. At the last, it uses the return keyword that returns the list value "L".Learn more:
brainly.com/question/2901618
Given the following snippet of code, answer the following two questions based on the code: typedef enum {Sun, Mon, Tue, Wed, Thu, Fri, Sat} days; days x = Mon, y = Sat; while (x != y) { x++; } y++; printf("x = %d, y = %d", x, y); 1. What value will be printed for variable x? [ Select ] . 2. What value will be printed for variable y? [ Select ]
Answer:
1) The value of x will be 6.
2) The value of y will be 7.
Explanation:
1) The value of x will be 6.
The enum values are labeled by default from 1. This means that Sun = 1, Mon = 2, Tue = 3 and so on.
So, x = Mon = 2 and y = Sat = 6
x increases up to y = 6 in the while loop.
and then y also increments by 1.
2)So the value of y = 7.
You will need actual printf("Sun") or printf("Mon") for printing the actual text for the enum.
Design an algorithm to generate the sequence of positive integers (In increasing order) whose only prime divisors are 2 and 3.
Answer:
es muy buena pero es muy difícil que ni yo pude entender
Given that s refers to a set, write a statement that attempts to remove integer 11 from the set, but will do nothing if 11 is not in the set.
Answer:
Here is the code:-
#(5) Given that s refers to a set, write a statement that attempts
#to remove the int value 11 from the set, but will do nothing if 11 is
#not in the set
#check if 11 is in not in s
if 11 is not in s:
pass
else:
#other wise remove 11 from s
s.remove(11)
Explanation:
PLS PAK I ANSWER NITO KAILANGAN LANGPO
1. E-gro.up
2. Faceb.ook
3. Gm.ail
4. Go to www.gm.ail.com
5. Gm.ail
6. Go to www.faceb.ook.com
These are the answers.
This is your code.
>>> A = [21, 'dog', 'red']
>>> B = [35, 'cat', 'blue')
>>> C = [12, 'fish', 'green']
>>> E = (A, B, C]
What is the value of E[0][1]?
O 35
dog
0 21
O cat
Answer:
dog
Explanation:
Given the code :
>>> A = [21, 'dog', 'red']
>>> B = [35, 'cat', 'blue')
>>> C = [12, 'fish', 'green']
>>> E = [A, B, C]
the value of E[0][1]
Here, square boxes is used to select the value at E[0] ; the output is then used to select the value at index 1 of E[0] output.
Note that, indexing starts at 0; hence first list element is 0, then, 1, 2, and so on.
At
E[0] ; list E, index 0 (first element in the list) , gives an output A
Then, A[1] ; list A, index 1 (second element in the list) gives 'dog'
Answer:
dog
Explanation:
right on edge
Which statement, executed once at the start of main(), enables a program to generate a different sequence of pseudo-random numbers from rand() each time the program is run?
Answer:
(b) srand(time(0))
Explanation:
Given
See attachment for options
Required
Which would generate different set of random numbers
To do this, we analyze each of the options - one at a time.
(a) srand()
The above is an invalid usage of srand() because srand() requires an argument for it to function e.g. srand(2)
(b) srand(time(0))
The above is valid, and it will return different pseudo random numbers each time the statement is executed because time(0) lets srand() seed to the current time.
(c) srand(100)
The above is a valid usage of srand(), however rand() will generate same set of numbers because srand() has been seeded to only 100.
(d) time(srand())
The above is also an invalid usage of srand().
Describe how data is transmitted using half-duplex serial data transmission.
Answer:
In half duplex mode, the signal is sent in both directions, but one at a time. In full duplex mode, the signal is sent in both directions at the same time. In simplex mode, only one device can transmit the signal. In half duplex mode, both devices can transmit the signal, but one at a time.
Examine the following output:
4 22 ms 21 ms 22 ms sttlwa01gr02.bb.ispxy.com [154.11.10.62]
5 39 ms 39 ms 65 ms placa01gr00.bb.ispxy.com [154.11.12.11]
6 39 ms 39 ms 39 ms Rwest.plalca01gr00.bb.ispxy.com [154.11.3.14]
7 40 ms 39 ms 46 ms svl-core-03.inet.ispxy.net [204.171.205.29]
8 75 ms 117 ms 63 ms dia-core-01.inet.ispxy.net [205.171.142.1]
Which command produced this output?
a. tracert
b. ping
c. nslookup
d. netstat
Answer:
a. tracert
Explanation:
Tracert is a computer network diagnostic demand which displays possible routes for internet protocol network. It also measures transit delays of packets across network. The given output is produced by a tracert command.
¿Cuál es la diferencia de un ciudadano digital entre la vida real y la vida en línea?
how to add a fixed decimal value to an identifier using Delphi 10 coding?
Answer:A declaration defines an identifier (such as the name of a function or variable) that ... This topic introduces the Delphi language character set, and describes the syntax for ... The Delphi language uses the Unicode character encoding for its character set, ... Integer and real constants can be represented in decimal notation as ...
Explanation:
Write a method that prints on the screen a message stating whether 2 circles touch each other, do not touch each other or intersect. The method accepts the coordinates of the center of the first circle and its radius, and the coordinates of the center of the second circle and its radius.
The header of the method is as follows:
public static void checkIntersection(double x1, double y1, double r1, double x2, double y2, double r2)
Hint:
Distance between centers C1 and C2 is calculated as follows:
d = Math.sqrt((x1 - x2)2 + (y1 - y2)2).
There are three conditions that arise:
1. If d == r1 + r2
Circles touch each other.
2. If d > r1 + r2
Circles do not touch each other.
3. If d < r1 + r2
Circles intersect.
Answer:
The method is as follows:
public static void checkIntersection(double x1, double y1, double r1, double x2, double y2, double r2){
double d = Math.sqrt(Math.pow((x1 - x2),2) + Math.pow((y1 - y2),2));
if(d == r1 + r2){
System.out.print("The circles touch each other"); }
else if(d > r1 + r2){
System.out.print("The circles do not touch each other"); }
else{
System.out.print("The circles intersect"); }
}
Explanation:
This defines the method
public static void checkIntersection(double x1, double y1, double r1, double x2, double y2, double r2){
This calculate the distance
double d = Math.sqrt(Math.pow((x1 - x2),2) + Math.pow((y1 - y2),2));
If the distance equals the sum of both radii, then the circles touch one another
if(d == r1 + r2){
System.out.print("The circles touch each other"); }
If the distance is greater than the sum of both radii, then the circles do not touch one another
else if(d > r1 + r2){
System.out.print("The circles do not touch each other"); }
If the distance is less than the sum of both radii, then the circles intersect
else{
System.out.print("The circles intersect"); }
}
Compute the approximate acceleration of gravity for an object above the earth's surface, assigning accel_gravity with the result.
The expression for the acceleration of gravity is: (G*M)/(d2), where G is the gravitational constant 6.673 x 10-11, M is the mass of
the earth 5.98 x 1024 (in kg), and d is the distance in meters from the Earth's center (stored in variable dist_center)
Sample output with input: 6.3782e6 (100 m above the Earth's surface at the equator)
Acceleration of gravity: 9.81
Answer:
The summary of the given query would be summarized throughout the below segment. The output of the question is attached below.
Explanation:
Given values are:
[tex]G = 6.673e-11[/tex][tex]M = 5.98e24[/tex][tex]accel \ gravity = 0[/tex][tex]dist\ center=float(inp())[/tex]here,
inp = input
By utilizing the below formula, we get
⇒ [tex]\frac{GM}{d^2}[/tex]
Now,
⇒ [tex]accel \ gravity=\frac{G\times M}{dist \ center**2}[/tex]
⇒ print("Acceleration of gravity: {:.2f}".format(accel_gravity))
Write a Fortran Program to calculate area of a circle
Explanation:
πr square
That's the formula for calculating area of a circle.
A company is considering making a new product. They estimate the probability that the new product will be successful is 0.75. If it is successful it would generate $240,000 in revenue. If it is not successful, it would not generate any revenue. The cost to develop the product is $196,000. Use the profit (revenue − cost) and expected value to decide whether the company should make this new product.
Answer:
-16000
Explanation:
Given
P(success) = 0.75
Amount generated on success, X = 240000
P(not successful) = P(success)' = 1 - 0.75 = 0.25
Revenue generated, 0
Product development cost = 196000
Profit = Revenue - cost
When successful ; 240000 - 196000 = 44000
Unsuccessful ; 0 - 196000 = - 196000
x __________ 44000 _____ - 196000
P(x) _________ 0.75 _________ 0.25
The expected value ; E(X) = Σx * p(x)
Σx * p(x) = (44000 * 0.75) + (-196000 * 0.25)
= 33000 + - 49000
= - 16000
Hence, the company should not make the product
Answer:
-16000
Given P(success) = 0.75
Amount generated on success, X = 240000
P(not successful) = P(success)' = 1 - 0.75 = 0.25
Revenue generated, 0
Product development cost = 196000
Profit = Revenue - cost
When successful ; 240000 - 196000 = 44000
Unsuccessful ; 0 - 196000 = - 196000
x __________ 44000 _____ - 196000
P(x) _________ 0.75 _________ 0.25
The expected value ; E(X) = Σx * p(x) Σx * p(x) = (44000 * 0.75) + (-196000 * 0.25) = 33000 + - 49000 = - 16000 Hence, the company should not make the product
Explanation:
edge 2021
Consider an array inarr containing atleast two non-zero unique positive integers. Identify and print, outnum, the number of unique pairs that can be identified from inarr such that the two integers in the pair when concatenated, results in a palindrome. If no such pairs can be identified, print -1.Input format:Read the array inarr with the elements separated by ,Read the input from the standard input streamOutput format;Print outnum or -1 accordinglyPrint the output to the standard output stream
Answer:
Program.java
import java.util.Scanner;
public class Program {
public static boolean isPalindrome(String str){
int start = 0, end = str.length()-1;
while (start < end){
if(str.charAt(start) != str.charAt(end)){
return false;
}
start++;
end--;
}
return true;
}
public static int countPalindromePairs(String[] inarr){
int count = 0;
for(int i=0; i<inarr.length; i++){
for(int j=i+1; j<inarr.length; j++){
StringBuilder sb = new StringBuilder();
sb.append(inarr[i]).append(inarr[j]);
if(isPalindrome(sb.toString())){
count++;
}
}
}
return count == 0 ? -1 : count;
}
public static void main(String[] args) {
Scanner sc = new Scanner(System.in);
String line = sc.next();
String[] inarr = line.split(",");
int count = countPalindromePairs(inarr);
System.out.println("RESULT: "+count);
}
}
Explanation:
OUTPUT:
Write an ALTER TABLE statement that adds two new columns to the Products table: one column for product price that provides for three digits to the left of the decimal point and two to the right. This column should have a default value of 9.99; and one column for the date and time that the product was added to the database.
Answer:
ALTER TABLE Products
ADD Products_price float(5,2) DEFAULT 9.99,
ADD Adding_time datetime;
Explanation:
So at first we need to use ALTER TABLE statement, when we use this statement we also need to provide the table name. In this case, i assume it is 'Products'.
Then, as per question, we need to add two columns.
The first one is 'product_price' and it contains decimal points. So, we need to use ADD statement and give a column name like 'Prodcuts_price' and its datatype 'float' because it contains decimal or floating points. so, for 3 digits on the left and 2 digits on the right, it makes a total of 5 digits. So, we need to declare it like this. (5,2) it means a total of 5 digits and 2 after the decimal point. after that, we need to set our Default value using the DEFALUT statement. so DEFAULT 9.99. it will set the default value to 9.99 for existing products.
And for our next column, we give its a name like 'Adding_time' then it's datatype 'datetime' because it will contain date and times.