Answer:
hope this helps...
Explanation:
A computer can only make a decision if it has been instructed to do so. In some advanced computer systems, there are computers that have written the instructions themselves, based on other instructions, but unless there is a “decision point”, the computer will not act on its own volition.
PLEASE THANK MY ANSWER
A secure biometrics system authenticates the user based on his/her physiological (e.g., fingerprint, face, voice) or behavioral (e.g., gait, hand gesture, keystroke) traits. Typically, a binary classification model will be developed to generate predicted probabilities based on the input information. Please explain:
Answer:
The solution to this question can be defined as follows:
Explanation:
please find the complete question in the attached file:
In point a:
It utilizes multiple algorithms based on machine learning can understand the attributes or transform their probability into projections. Its algorithms could be used, including such neural computer systems or artificial neural networks. Whenever the input, as well as the target outcome, are taken their possibilities are converted in forecasts, so that if the input, as well as the corresponding results, are balanced.
In point b:
The operating curves of its receiver is indeed a plot of its true positives for its incorrect positive rate. It could be used in different tests for treatment. It indicates the variations of its responsiveness between all the two components and also the accuracy. Line slopes supply LR with a value.
which of these are the largest.a exabyte,,terabyte,,gigabyte or kilobyte
Answer:
I think a exabyte, if not its probably a terabyte
Explanation:
Could we represent every possible number with flippy do pro ?
Answer:
better with pro dud
Explanation:
.....helps??...
Assignment
Create an HTML form that will accept four fields: pet name, pet ID, pet weight, and birthdate. Name this file petInfo.html. There should be a submit and reset button on your html form. Your input fields for your form should be inside of a table. The submit button should send the data to a php file named updateInfo.php. The updateInfo.php file should check the data submitted by the html file for proper formatting. While it is allowable that you may check input on the client side (either HTML or Javascript), you MUST check for valid input on the server using PHP.
***IMPORTANT***
Your POST variables in your HTML file must be labeled as follows. I have written an automated script to run tests on your code, and it depends on the POST variables being labeled correctly within the HTML Form.
1) "pet_name"
2) "pet_id"
3) "pet_weight"
4) "birth_date"
The following rules must be enforced by your PHP script about the input.
• No field is allowed to be blank.
• Maximum length of pet name is 20 characters.
• Pet ID must be 4 lowercase letters followed by 3 numbers. Example: abcd123
• Max length of pet weight is 7 characters. Max of two digits after decimal point. Must be a positive value. Range: 0.00 – 9999.99.
• The name should be only made up of alphabetical characters. (no numbers or symbols).
• Birthdate should be in the format 1/1/2002. Examples of valid input: 01/01/2002, 12/1/1999, 12/25/2015. Do not allow: 12/25/02 (The whole year should appear in the input).
If all the fields are valid, your PHP script should save the data into a file named petInfo.txt which should have the following format, and be sorted by "pet_name". Put each record on its own line. To simplify things, you can assume that Names are unique - i.e. you can use the name as a key for your associative array. (I won't use two of the same name when I test your code).
PetName, PetID, PetWeight, PetBirthDate\n
Once the new data has been received, you should also display ALL data that has been entered into the text file from your PHP script into an HTML table. The table should be sorted by last name just like the text file. After successfully displaying your table, create a link back to the petInfo.html page.
Answer:
it
is
not
a
big
question
it
is
so
simple
V(t)=5 cos wt + 2 ? Is this ac or dc ? And why ?
Answer:
this is AC b/c.... cos is a periodic function.. think waves... the voltage is going to vary between positive 5 and negative 5 volts... so it's a low voltage signal, but still AC, the W is for how fast it's varying and the +2 is the off set of the wave.
Explanation:
Write a short quiz program which asks three true/false questions and stores the user's answers as booleans. At the end the program it should print the user's answers with the correct answers.
Note: you should use the same quiz questions and correct answers as the sample run below.
Sample run:
Java is a programming language, true or false?
true
Only numbers can be stored by variables in Java, true or false?
true
There are only 2 possible values which can be held by a boolean variable, true or false?
false
Question 1 - Your answer: true. Correct answer: true
Question 2 - Your answer: true. Correct answer: false
Question 3 - Your answer: false. Correct
AP CS A Unit 1: Lesson 3 - Coding Activity 3
this answering question interface is bleh
The concept of boolean variables is that; variables declared as boolean type can only take any of two values. The variable can either be true or false. Such variable cannot take any other value apart from these two.
The short quiz program is as follows.
Please note that comments are used to explain difficult lines.
import java.util.*;
public class shortQuiz{
public static void main(String[] args) {
Scanner input = new Scanner(System.in);
//This declares the variables that represent correct answers as boolean data type; the variables are also initialized
boolean q1 = true, q2 = false, q3 = true;
//This declares the response to each question as boolean data type
boolean q1response, q2response, q3response;
//This prints the first question
System.out.print("Java is a programming language, true or false? ");
//This gets input for the first response
q1response = input.nextBoolean();
//This prints the second question
System.out.print("Only numbers can be stored by variables in Java, true or false? ");
//This gets input for the second response
q2response = input.nextBoolean();
//This prints the third question
System.out.print("There are only 2 possible values which can be held by a boolean variable, true or false? ");
//This gets input for the third response
q3response = input.nextBoolean();
//This prints your first response, alongside the correct answer to the first question
System.out.println("Question 1 - Your answer: "+q1response+". Correct answer: "+q1);
//This prints your second response, alongside the correct answer to the second question
System.out.println("Question 2 - Your answer: "+q2response+". Correct answer: "+q2);
//This prints your third response, alongside the correct answer to the third question
System.out.println("Question 3 - Your answer: "+q3response+". Correct answer: "+q3);
//The program ends here
}
}
See attached image for program sample run.
The above program initializes the correct answers using boolean variables. The correct answers are then printed, after the user answers the three questions.
Read more about boolean variables at:
https://brainly.com/question/16843003
Suzanne has inserted an image into her document and would like to adjust the color and contrast of the image.
Where can Suzanne find these options?
Design tab, Picture Tools group
Contextual tab Picture Tools > Format in the Picture Tools group
Contextual tab Picture Tools > Format in the Adjust group
Contextual tab Picture Tools > Format in the Align group
Answer:
Contextual tab Picture Tools > Format in the Adjust group
Explanation:
edge/canva test review
Suzanne finds the options in the contextual tab Picture Tools > Format in the Adjust group. The correct option is B.
What is a contextual tab?When a specific event occurs in the Office document, a contextual tab, which is a hidden tab control in the Office ribbon, is presented in the tab row. For instance, when a table is selected in Excel, the Table Design tab is displayed on the ribbon.
The contextual command tabs have the capabilities and commands you need to operate in a certain situation. The contextual tabs, for instance, provide actions that are only applicable while working with a table in the Design view when you open a table in that view.
Therefore, the correct option is B. Contextual tab Picture Tools > Format in the Adjust group.
To learn more about the contextual tab, refer to the link:
https://brainly.com/question/26680062
#SPJ2
Keisha has a worksheet with a range of cells using the following columns: Name, Score, Group, Study Group, and Date. Keisha needs to sort the worksheet on the Date field. Which option should she use to most efficiently complete this task?
A: Use the Cut and Paste option to reorganize the data to fit that order.
B: Use the Filter function to organize the data based on the date.
C: Use the Order function to organize the data based on the date.
D: Use the Sort function to organize the data based on date order.
Answer:
The answer is
d. Use the Sort function to organize the data based on date order.
Explanation:
Most accurate one.
The option that she should use to most efficiently complete this task is to use the Sort function to organize the data based on date order. The correct option is D.
What is a worksheet?It is "a piece of paper used to record work schedules, working hours, special instructions, etc. a sheet of paper used to jot down problems, ideas, or the like in draft form." A worksheet used in education could have questions for pupils and spaces for them to record their responses.
A single spreadsheet called an Excel Worksheet is made up of cells arranged in rows and columns. A worksheet always starts in row 1 and column A. A formula, text, or number can be entered into each cell. Additionally, a cell can point to a different cell on the same worksheet, in the same workbook, or in a different workbook.
Therefore, the correct option is D. Use the Sort function to organize the data based on date order.
To learn more about the worksheet, refer to the link:
https://brainly.com/question/1024247
#SPJ6
Chris would like to adjust an image that he has inserted to give it an older look and feel.
What is the easiest way of doing this?
adjusting contrast and color
adjusting background
applying picture styles
adjusting the size and shape
Answer:
C- applying picture styles
Explanation: ;)
Answer:
applying picture styles
Explanation:
edge/canvas test review
Scenario: You are part of an IT group managing Active Directory for a mid-size organization. A contracted research group with their own IT team operating from a remote location with a slow network connection has requested that they be able to setup a Child Domain in your organization's domain. The remote IT teams argument is based on their slow network, and their need to access and administer the local server that would need to exist in their remote location. Your team is split between allowing the Child Domain or recommending an Organizational Unit and delegating the remote IT team access. Yours is the deciding vote -- and cost is being considered a deciding factor. What option do you support as the best option in this scenario? What DC configuration for the remotely located server would be the best option?
If instead of cost, the deciding factor was the slow speed of their network, what option would you support as the best option?
Explanation:
1.
the answer to the first question is organizational unit. this is because in this scenario that we have before us, cost is a deciding factor. a unit as this can adapt to changes, it is flexible and also not very complex
2.
answer to question 2 is PDC emulator. this emulator can perform the function synchronization of time across every domain controller that is in the domain. other of its functions are, authentication and changing of passwords.
3.
the answer to the 3rd question is child domain. It is a factor in this scenario because it works well in a situation where there is an issue of slow network connection.
As a twist on the Hello World exercise, you are going to be the end user of the Hello class. This class is designed to greet the user in a variety of world languages. For this task, complete the following:
Use the Scanner class to ask the user for their name.
Create a Hello object by passing the name to the constructor.
Call at least 3 methods from the Hello class to print the greeting in 3 different languages.
Remember to write your code in the HelloTester class, but make sure you take a look at the Hello class so that you know the names of the methods you need to use.
Answer:
Here is the Hello class:
public class Hello { //class name
private String name; //to store the name
public Hello (String names) //parameterized constructor
{ name = names; }
public void English() { //method to greet user in english
System.out.print("Hello "); //displays Hello on output screen
System.out.print(name); //displays user name
System.out.println("!"); } //displays exclamation mark symbol
public void Spanish(){ //method to greet user in spanish
System.out.print("Hola "); //displays Hello on output screen
System.out.print(name); //displays user name
System.out.println("!"); } //displays exclamation mark symbol
public void French() { //method to greet user in french
System.out.print("Bonjour "); //displays Hello on output screen
System.out.print(name); //displays user name
System.out.println("!"); } } //displays exclamation mark symbol
Explanation:
Here is the HelloTester class:
import java.util.Scanner; //to accept input from user
public class HelloTester { //class name
public static void main (String[]args) { //start of main method
String name; //to store the name of user
Scanner input = new Scanner(System.in); //creates Scanner class object
System.out.println("Enter name?" ); //prompts user to enter name
name = input.nextLine(); //scans and reads the name from user
Hello hello = new Hello(name); //creates Hello class object and calls constructor by passing name
hello.English(); //calls English method using object hello to greet in english
hello.Spanish(); //calls Spanish method using object hello to greet in spanish
hello.French(); } } //calls French method using object hello to greet in french
The output of the program is:
Enter name? user Hello user! Hola user! Bonjour user!
The screenshot of the program along with its output is attached.
Java is one of the most popular programming languages that is being widely used in the IT industry. It is simple, robust, and helps us to reuse the code.
The required program is,
\\import java.util.Scanner;
class Hello
{
private String name;
public Hello(String yourName)
{
name=yourName;
}
public void english()
{
System.out.print("Hello ");
System.out.print(name);
System.out.println("!");
}
public void spanish()
{
System.out.print("Holla ");
System.out.print(name);
System.out.println("!");
}
public void french()
{
System.out.print("Bonjour ");
System.out.print(name);
System.out.println("!");
}
public void german()
{
System.out.print("Hallo ");
System.out.print(name);
System.out.println("!");
}
public void russian()
{
System.out.print("Privet ");
System.out.print(name);
System.out.println("!");
}
public void chinese()
{
System.out.print("Ni hao ");
System.out.print(name);
System.out.println("!");
}
}
public class HelloTester
{
public static void main(String[] args)
{
Scanner input=new Scanner(System.in);
String name;
//Accepting the name
System.out.print("\nEnter your name: ");
name=input.next();
/creating an object of Hello class
Hello hello=new Hello(name);
System.out.println("\nGreeting in English: ");
System.out.println("-------------------------------------");
hello.english();
//calling the methods to greet in different languages
System.out.println("\nGreeting in Spanish: ");
System.out.println("-------------------------------------");
hello.spanish();
System.out.println("\nGreeting in French: ");
System.out.println("-------------------------------------");
hello.french();
System.out.println("\nGreeting in German: ");
System.out.println("-------------------------------------");
hello.german();
System.out.println("\nGreeting in Russian: ");
System.out.println("-------------------------------------");
hello.russian();
System.out.println("\nGreeting in Chinese: ");
System.out.println("-------------------------------------");
hello.chinese();
System.out.print("\n");
}
}
\\
So, the output is attached below:
Learn more about the topic Java Program:
https://brainly.com/question/19271625
A program is written to compute the sum of the integers from 1 to 10. The programmer, well trained in reusability and maintainability, writes the program so that it computes the sum of the numbers from k to n. However, a team of security specialists scrutinizes the code. The team certifies that this program properly sets k to 1 and n to 10; therefore, the program is certified as being properly restricted in that it always operates on precisely the range 1 to 10.
Required:
List different ways that this program can be sabotaged so that during execution it computes a different sum, such as 3 to 20.
Answer:
See explanation
Explanation:
An instance of such program written in python is
isum = 0
for i in range(1,11):
isum = isum + i
print(sum)
One of the ways the program can give a wrong result is when someone alters the program source program before it's complied and executed.
Take for instance.
Changing
isum = 0 to isum = 4
will alter the result by additional 4
Another way is if an outside program or process alters the program execution.
Which step is first in changing the proofing language of an entire document?
A: Click the Language button on the Status bar.
B: Select the whole document by pressing Ctrl+A.
C: Under the Review tab on the ribbon in the Language group, click the Language button and select Set Proofing Language.
D: Run a Spelling and Grammar check on your document before changing the language.
Answer:
b) Select the whole document by pressing Ctrl+a.
Explanation:
The correct answer is b. If you do not select the whole document or parts of the document you wish to change the proofing language for, it will only be applied to the word your cursor is positioned in.
ig:ixv.mona :)
Answer:
B) Select the whole document by pressing Ctrl+A.
What lets you do many things, like write book reports and stories?
Create a function min_mid_max which takes a list as its formal parameter and returns a new list with the following characteristics: element 0 contains the minimum value • element 1 contains the middle value (not the median -- which would require an average if the list had an even number of elements). If the list is even (e.g. [1,2,3,4]) the 'middle' value will be the right value of the two possible choices (e.g. 3 rather than 2). • element 2 contains the maximum value Notes: • You can only use Python syntax shown so far (even if you know more) • You cannot use any math library (we have yet to see this) • You should use the function sorted. Remember the function sorted does not change its input, it returns a new list. • You should only need to call sorted one time. print(sorted(3,2,1])) • You can use the function int (another built in function) to help determine the index of the middle value. This function takes a floating point (or any kind of number) and converts it into an integer (e.g.print(int(4.32)). This will allow you to treat lists with an even number of elements the same as a list with a odd number of elements. • If min_mid_max is called with an empty list, return an empty list. • If min_mid_max is called with 1 item that item is the min, mid, and the max • If min_mid_max is called with 2 items, the mid and the max should be the same • No need to worry about the incoming list being the value None
Answer:
Follows are the code to this question:
def min_mid_max(myList):#defining a method min_mid_max that accept a list in parameter
if len(myList)==0:#defining if block that check list length equal to 0
return []#return empty list
s = sorted(myList)#defining variable s that uses the sorted method to sort the list
m = int(len(myList)/2)#defining mid variable that hold list mid value
return [s[0], s[m], s[-1]]#return list values
print(min_mid_max([1,2,3,4]))#use print function to call method
print(min_mid_max([]))#use print function to call method
print(min_mid_max([1, 2]))#use print function to call method
print(min_mid_max([1]))#use print function to call method
Output:
Please find the attached file.
Explanation:
In the given code, a method "min_mid_max" is defined, which accepts a list "myList" in parameter, inside the method if block is used, that check length of the list.
If it is equal to 0, it will return an empty list, otherwise, a variable "s" is declared, that use the sorted method to sort the list, and in the "m" variable, it holds the mid number of list and returns its value.
In the print method, we call the above method by passing a list in its parameter.
QUICK!!!
Which of the following occupations would work with oceanographers to better understand the relationship between the ocean and the
atmosphere?
1.research meteorologist
2. broadcast meteorologist
3. atmospheric scientist
4. forensic meteorologist
Answer:
I think the answer would be C. atmospheric scientist
Select the action that a database does not perform.
Sort and manipulate the data.
Find the average of four numbers.
Update information in more than one place at the same time.
Create data entry forms.
Answer:
the answer is B. find the average of four numbers
Explanation:
How can templates be made available to other users?
A: your user profile directory
B: a shared network location
C: an intranet SharePoint document library
D: none of the above
Answer:
b
Explanation:
How does multimedia content enhance a user’s Web browsing experience?
Answer:
hi
Explanation:
89
Answer:
I would say it is more engaging and helps the user remember the content better as multimedia is more memorable than just plain text. It can also display things that plain text is unable to, such as sounds and detailed pictures.
Explanation:
Easter Sunday is the first Sunday after the first full moon of spring. To compute the date, you can use this algorithm, invented by the mathematician Carl Friedrich Gauss in 1800:
1. Let y be the year (such as 1800 or 2001).
2. Divide y by 19 and call the remainder a. Ignore the quotient.
3. Divide y by 100 to get a quotient b and a remainder c.
4. Divide b by 4 to get a quotient d and a remainder e.
5. Divide 8 * b 13 by 25 to get a quotient g. Ignore the remainder.
6. Divide 19 * a b - d - g 15 by 30 to get a remainder h. Ignore the quotient.
7. Divide c by 4 to get a quotient j and a remainder k.
8. Divide a 11 * h by 319 to get a quotient m. Ignore the remainder.
9. Divide 2 * e 2 * j - k - h m 32 by 7 to get a remainder r. Ignore the quotient.
10. Divide h - m r 90 by 25 to get a quotient n. Ignore the remainder.
11. Divide h - m r n 19 by 32 to get a remainder p. Ignore the quotient.
Then Easter falls on day p of month n. For example, if y is 2001:
a = 6 h = 18 n = 4
b = 20, c = 1 j = 0, k = 1 p = 15
d = 5, e = 0 m = 0
g = 6 r = 6
Therefore, in 2001, Easter Sunday fell on April 15. Write a program that prompts the user for a year and prints out the month and day of Easter Sunday.
Part 1: Problem-Solving Phase
Using the Design Recipe, write each of the following for this problem:
Contract
Purpose Statement
Examples, making sure to include counter-examples
Algorithm (based on the above algorithm, completed with input/output steps)
Make sure to test your algorithm by hand with the examples to verify it before continuing to Part 2.
Part 2: Implementation Phase
Using Eclipse, write the Java program for the algorithm formulated in Part 1, and test your program with the examples from Part 1.
Make sure to incorporate your Contract, Purpose Statement and Examples as one or more comment blocks, and your Algorithm as line comments in your Java source code.
Answer:
The program written in Java without comment is as follows
import java.util.*;
public class MyClass {
public static void main(String args[]) {
Scanner input = new Scanner(System.in);
System.out.print("Year: ");
int y = input.nextInt();
int a = y%19;
System.out.println("a = "+a);
int b = y / 100;
System.out.println("b = "+b);
int c = y%100;
System.out.println("c = "+c);
int d = b / 4;
System.out.println("d = "+d);
int e = b%4;
System.out.println("e = "+e);
int g = (8 * b + 13)/25;
System.out.println("g = "+g);
int h = (19 * a + b - d - g + 15)%30;
System.out.println("h = "+h);
int j = c/4;
System.out.println("j = "+j);
int k = c%4;
System.out.println("k = "+k);
int m = (a + 11 * h)/319;
System.out.println("m = "+m);
int r = (2 * e + 2 * j - k - h + m + 32)%7;
System.out.println("r = "+r);
int n = (h - m + r + 90)/25;
System.out.println("n = "+n);
int p = (h - m + r + n + 19)%32;
System.out.println("p = "+p);
}
}
Explanation:
I've added the full source code as an attachment where I use comments to explain difficult lines
Coupon collector is a classic statistic problem with many practical applications. The problem is to pick objects from a set of objects repeatedly and determine how many picks are needed for all the objects to be picked at least once. A variation of the problem is to pick cards from a shuffled deck of 52 cards repeatedly and find out how many picks are needed before you see one of each suit. Assume a picked card is placed back in the deck before picking another. Write a program to simulate the number of picks needed to get total of four cards from each different suit and display the four cards picked (it is possible that a card may be picked twice). Here is a sample run of the program:
4 of Diamonds
8 of Spades
Queen of Clubs
8 of Hearts
Number of picks: 9
Answer:
Here is the JAVA program:
public class Main { //class name
public static void main(String[] args) { //start of main method
//sets all boolean type variables spades, hearts diamonds and clubs to false initially
boolean spades = false;
boolean hearts = false;
boolean diamonds = false;
boolean clubs = false;
String[] deck = new String[4]; //to store card sequence
int index = 0; //to store index position
int NoOfPicks = 0; //to store number of picks (picks count)
while (!spades || !hearts || !diamonds || !clubs) { //loop starts
String card = printCard(getRandomCard()); //calls printCard method by passing getRandomCard method as argument to it to get the card
NoOfPicks++; //adds 1 to pick count
if (card.contains("Spades") && !spades) { //if that random card is a card of Spades and spades is not false
deck[index++] = card; //add that card to the index position of deck
spades = true; //sets spades to true
} else if (card.contains("Hearts") && !hearts) { //if that random card is a card of Hearts and hearts is not false
deck[index++] = card;
hearts = true; //sets hearts to true
} else if (card.contains("Diamond") && !diamonds) { //if that random card is a card of Diamond and diamonds is not false
deck[index++] = card;
diamonds = true; //sets diamonds to true
} else if (card.contains("Clubs") && !clubs) { if that random card is a card of Clubs and clubs is not false
deck[index++] = card;
clubs = true; } } //sets clubs to true
for (int i = 0; i < deck.length; i++) { //iterates through the deck i.e. card sequence array
System.out.println(deck[i]); } //prints the card number in deck
System.out.println("Number of picks: " + NoOfPicks); } //prints number of picks
public static int getRandomCard() { //gets random card
return (int) (Math.random() * 52); } //generates random numbers of 52 range
public static String printCard(int cardNo) { //displays rank number and suit
String[] suits = { "Spades", "Hearts", "Diamonds", "Clubs", }; //array of suits
String[] rankCards = { "Ace", "2", "3", "4", "5", "6", "7", "8", "9", "10",
"Jack", "Queen", "King" }; //array of rank
int suitNo = cardNo / 13; //divides card number by 13 and stores to suitNo
int rankNo = cardNo % 13; //takes modulo of card number and 13 and store it to rankNo
return rankCards[rankNo] + " of " + suits[suitNo]; }} //returns rankCard at rankNo index and suits at suitNo index
Explanation:
The program is explained in the comments attached with each line of code. The screenshot of the program along with its output is attached.
What feature did the 32X add to the Sega Genesis?
Answer:
ngl why would i know this
Explanation:
It allowed the console to run 32-bit cartridges.
The global communication network that allows computers to connect and pass through information is called?
Answer: Internet
Explanation:
Answer:
The Internet.
Explanation:
المساعد للWhat property of a metal describes its ability to be easily drawn into
a wire but not rolled into a sheet without splitting? iww.
Answer:
Ductility
Explanation:
Witch of the following involves unethical use of another intellectual property
Answer: the answer is C
hope you have a good day...... <3
Explanation:
what are motherboards
Answer:
Explanation:
Motherboard
A motherboard is the main printed circuit board in general-purpose computers and other expandable systems. It holds and allows communication between many of the crucial electronic components of a system, such as the central processing unit and memory, and provides connectors for other peripherals
two page essay on an emerging technology.. plzzzzz help
Answer:
hope i get brainliest
Explanation:
Emerging Technologies
Abstract
The purpose of this paper is to summarize the advantages of computers/software and the use of computer technology in investigations. Summarize the disadvantages to law enforcement with respect to the advancements of computers. Real cases will be researched in order to understand how computers can be utilized in criminal activities, as well as a case that the use of a computer was beneficial to the prosecution in a criminal case. A final conclusion paragraph will address my personal subjective opinion as to whether these technologies, in an overall sense are a benefit or hindrance to law enforcement efforts.
Introduction
Since computers have become such a big part of our…show more content…
From utilizing computers in cars so officers could run a license plate and social security number to see if there are any warrants out for the person they stopped, to more advances such as carrying cell phones, GPS tracking systems in cars, crime mapping tools, information sharing between state and local law enforcement, to even sharing information across countries. Technology has come a long way in helping officers and other agents within the criminal justice system do their job.
Just a bit more about the advantages of the things mentioned above and time to move on. The most interesting thing is Geographic Information Systems (GIS), which has become a most important tool for law enforcement agencies. GIS, other mapping software and desktop computers now are capable of mapping and data analysis that is way above and beyond what used to be possible with backroom mainframe computers (Rubley, 2011).
Another great advancement is the widespread use of everyone using mobile devices. Many officers now use two to three cell phones.
Implement a binary search function in three substantially different programming languages. In each program (identical, except for the programming language), carry out the same 10,000,000 unsuccessful searches for eight different-sized arrays, namely arrays of sizes 128, 512, 2048, 8192, 32768, 131072, 524288, and 2,097,152. Measure in each of the three programs the time it takes to do the 10,000,000 searches for each of the eight arrays. Compare these timings to the theoretical timings the algorithm binary search provides. Are there differences between the three programs? Explain your timings and observations!!
Answer:
The code to this question can be defined as follows:
Explanation:
C language code:
#include <stdio.h>//defining header file
int binarySearch(int x[], int l, int y, int z)//defining method binarySearch that accepts four integer parameter
{
if (y >= l)//defining if block that check r value is greater the l
{
int m= l + (y - l)/2; //defining if block that holds mid value of array
if (x[m] == z)//use if block that check value in array
return m;// return array value
if (x[m] > z) //defining if block that check array value greater then x value
return binarySearch(x, l, m-1, z);//use return keyword to call method
return binarySearch(x, m+1, y, z);// in else it use return keyword to call method
}
return -1;//return value -1
}
int main()//defining main method
{
int x[] = {2, 3, 4, 10, 40};//defining array that hold integer values
int n = sizeof(x)/ sizeof(x[0]);//use n variable to hold its size value
int z = 10;//defining x varaiable that hold integer value
int r= binarySearch(x, 0, n-1, z);//use r varaiable to hold method return value
if(r== -1) //defining if block that check its value equal to -1
printf("Number is not foud in array ");//print message
else
printf("Number is present at %d position", r);//print value
return 0;
}
C++ language code:
#include <iostream>// header file
using namespace std;
int binarySearch(int x[], int l, int y, int z)//defining method binarySearch that accepts four integer parameter
{
if (y >= l)//defining if block that check r value is greater the l
{
int m= l + (y - l)/2; //defining if block that holds mid value of array
if (x[m] == z)//use if block that check value in array
return m;// return array value
if (x[m] > z) //defining if block that check array value greater then x value
return binarySearch(x, l, m-1, z);//use return keyword to call method
return binarySearch(x, m+1, y, z);// in else it use return keyword to call method
}
return -1;//return value -1
}
int main()//defining main method
{
int x[] = {2, 3, 4, 10, 40};//defining array that hold integer values
int n = sizeof(x)/ sizeof(x[0]);//use n variable to hold its size value
int z = 10;//defining x varaiable that hold integer value
int r= binarySearch(x, 0, n-1, z);//use r varaiable to hold method return value
if(r== -1) //defining if block that check its value equal to -1
cout<<"Number is not foud in array ";//print message
else
cout<<"Number is present at position "<< r;//print value
return 0;
}
Python language code:
def binarySearch (a, x, r, y):#defining a method binarySearch
if r >= x:#defining if block that checks r is greater than equal to x
m = x + (r - x)//2#defining m variable that hold mid value
if a[m] == y:#use if that check its input value equal y
return m#return m value
elif a[m] > y:#use array that check its value greaterthan y
return binarySearch(a,x, m-1, y) #use return keyword to call method
else:#defining else block
return binarySearch(a, m+1, r, y)#use return keyword to call method
else: #defining else block
return -1#return value -1
a = [ 2, 3, 4, 10, 40 ]#defining list a that holds value
y = 10#defining integer variable
r = binarySearch(a, 0, len(a)-1, y)#defining r variable that holds method value
if r != -1:#use if that check r is not equal to -1
print ("Number is available at ", r," position")#print value
else:#else block
print ("Number is not available in array")#print message
Create a class named FormLetterWriter that includes two overloaded methods named displaySalutation(). The first method takes one String parameter that represents a customer's last name, it displays the salutation "Dear Mr. or Ms." followed by the last name. The second method accepts two String parameters that represent a first and last name, and it displays the greeting "Dear" followed by the first name, a space, and the last name. After each salutation, display the rest of a short business letter: "Thank you for your recent order." Write a main() method that tests each overloaded method. Save the file as FormLetterWriter.java.
Answer:
Follows are the code to this question:
public class FormLetterWriter//defining class
{
static void displaySalutation(String last_Name)//defining a method displaySalutation
{
System.out.println("Dear Mr. or Ms. " + last_Name);//print value
}
static void displaySalutation(String first_Name, String last_Name) //overload the method displaySalutation
{
System.out.println("Dear " + first_Name + " " + last_Name);//print value
}
public static void message()//defining a method message
{
System.out.println("Thank you for your recent order.");//print message
}
public static void main(String[] args) //defining main method
{
displaySalutation("I Kell");//calling a method displaySalutation by passing a single String value
message();//calling message method
displaySalutation("Christ", "John");//calling a method displaySalutation by passing a two String value
message();//calling message method
}
}
Output:
please find the attached file.
Explanation:
In the above given program a calss "FormLetterWriter" is defined, in side the class we perform the method overloading, in which a method "displaySalutation" is used in first definition it accepts a single string variable "first_Name", and in second time, it accept two string variable " first_Name and last_Name".
Inside the both method, we use print method, that print its value, and an onther method message is defined, that print the given message.
In the class main method is declared, in which we apply mathod overloading and also call the message method for print the given business letter.
We are designing a program that must do the following:
Read 3 integers from a file called "data.txt"
Sum the integers
Compute the mean of the integers
Output the mean to a file called "mean.txt".
We are required to select functions from the library provided below to complete our program. Inside of the main () function, fill in the correct C statements to satisfy the four requirements listed above. You must fill in all the lines labeled with "statement x", where x is 2, 3, 4, 5, or 6. The first statement has been completed for you.
// These are the library functions that we must invoke!
// Precondition: The input file must already be open.
int read_integer (FILE *infile)
{
int number = 0;
fscanf (infile, "%d", &number);
return number;
}
int calculate_sum (int number1, int number2, int number3)
{
int sum = 0;
sum = number1 + number2 + number3;
return sum;
}
double calculate_mean (int sum, int number)
{
double mean = 0.0;
mean = ((double) sum) / number;
return mean;
}
// Precondition: The input file must already be open.
void print_double (FILE *outfile, double number)
{
fprintf (outfile, "%0.2lf\n", number);
}
// Fill in the appropriate statements for main ().
#include
int main (void)
{
int n1 = 0, n2 = 0, n3 = 0, sum = 0;
double average = 0.0;
FILE *infile = NULL, *outfile = NULL;
// We will not check to see if files were opened successfully; assume they are
infile = fopen ("data.txt", "r");
outfile = fopen ("mean.txt", "w");
______n1 = read_integer (infile)_________________________ // statement 1
_________________________________________________________ // statement 2 (2 pts)
_________________________________________________________ // statement 3 (2
pts)
_________________________________________________________ // statement 4 (2 pts)
_________________________________________________________ // statement 5 (2 pts)
_________________________________________________________ // statement 6 (2
pts)
fclose (infile);
fclose (outfile);
return 0;
}
Data input
1. number1 = read_integer (infile) //read number1
2. number2 = read_integer (infile); //read number2
3. number3 = read_integer (infile); //read number3
Data treatment
4. values = calculate_sum (int number1, int number2, int number3);
5. average = calculate_mean (int values, int number);
Output values
6. print_double (FILE *outfile, double average);