Design a class that attempts to determine the relative frequency of each letter by reading a file and keeping track of the number of times each of the 26 English alphabet characters appears. Also provide methods, such as highestFrequencyCharacter and lowestFrequencyCharacter. Test your class with a client program.
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- Program is in Java. Using methods as a base point, write a password generator that will generate a password of a given length. The password generated must contain least one uppercase letter, one lowercase letter, and one digit, all random. In addition, add a method that will make the generated password of at least a set minimum length and no longer then a maximum length. Have another method to ensure that the indicated required characters show up in random positions of the generated password as well.Write a client that generates arrays of items of varioustypes with random key values, including the following:■ String key (at least ten characters), one double value■ double key, ten String values (all at least ten characters)■ int key, one int[20] valueDevelop and test hypotheses about the effect of such input on the performance of thealgorithms in this section.: Imagine you are reading in a stream of integers. Periodically, you wish to be ableto look up the rank of a numberx (the number of values less than or equal to x). lmplementthe datastructures and algorithms to support these operations. That is, implement the method track ( intx), which is called when each number is generated, and the method getRankOfNumber(intx), which returns the number of values less than or equal to x (not including x itself).EXAMPLEStream (in order of appearance): 5, 1, 4, 4, 5, 9, 7, 13, 3getRankOfNumber(l) 0getRankOfNumber(3) = 1getRankOfNumber(4) =3
- write the java mini project and upload the code .class as like this and also provide the screenshot of the code. use these method for insert ,remove and search public boolean insertBook(Book b) { for(int i=0; i<books.length; i++) { if(books[i] == null) { books[i] = b; return true; } } return false; } public boolean removeBook(Book b) { for(int i=0; i<books.length; i++) { if(books[i].getIsbn().equalsIgnoreCase(b.getIsbn())) { for(int j=i; j<books.length-1; j++) { books[j] = books[j+1]; } return true; } } return false; } public Book searchBook(String isbn) { for(int i=0; i<books.length; i++) { if(books[i] != null) {…Given main(), complete the Car class (in file Car.java) with methods to set and get the purchase price of a car (setPurchasePrice(), getPurchasePrice()), and to output the car's information (printInfo()). Ex: If the input is: 2011 18000 2018 where 2011 is the car's model year, 18000 is the purchase price, and 2018 is the current year, the output is: Car's information: Model year: 2011 Purchase price: 18000 Current value: 5770 Note: printInfo() should use three spaces for indentation CarValue.java import java.util.Scanner;import java.lang.Math; public class CarValue {public static void main(String[] args) {Scanner scnr = new Scanner(System.in);Car myCar = new Car();int userYear = scnr.nextInt();int userPrice = scnr.nextInt();int userCurrentYear = scnr.nextInt();myCar.setModelYear(userYear);myCar.setPurchasePrice(userPrice);myCar.calcCurrentValue(userCurrentYear);myCar.printInfo();}} Car.Java public class Car {private int modelYear; // TODO: Declare purchasePrice field…Write a method getTopLevelDomain that accepts URL in String format then returns the top level domain. Write in java and use test case examples as result.
- can you solve this please? Adopt appropriate Java animation code to implement the video in the file “test4.wmv” and given that the parametric equation for a circle. x=r*cos(t) y=r*sin(t) with t in range [0, 2p] and r is the radius of the circle. (the circle goes in a loop like in the images, i did my best to try to explain it , please try to do it ) and here is a sample of what they want me to use : package javaapplication1;import java.awt.*;import java.awt.event.*;import javax.swing.*;import java.awt.geom.*;import java.util.Random;import javax.imageio.*;import java.io.File;import java.io.IOException;import java.awt.image.BufferedImage;import java.awt.event.*;import java.util.Calendar; public class JavaApplication1 extends JApplet { public static void main(String[] args) { JFrame frame=new JFrame(); frame.setTitle("hello"); frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE); JApplet applete =new JavaApplication1(); applete.init();…Create an ErdosRenyi UF client that accepts an integer N from the command line, generates random pairs of integers between 0 and N-1, calls connected() to see if they are connected, union() if they are not (like in our development client), loops until all sites are connected, and prints the number of connections generated. Include your programme with a main() function that accepts N from the command line, calls count(), and prints the result, along with a static method count() that returns the total number of connections.Consider the DFA M = (Q,Σ,δ,q1,F) where Q = {q1,q2,q3,q4},Σ = {a,b},F = {q4} andδ(q1,a) = q2,δ(q2,b) = q3,δ(q3,a) = q4,δ(q3,b) = q1.Convert this DFA to a regular expression using the method discussed in class (as this automaticallyproves that the answer is correct, as the algorithm is proven correct). You only need to calculate sub-expressions if it is necessary towards the final answer. Also, simplify each subexpression using any lawdiscussed in class (including those derived on the board). To summarize, those were 1) (ε+ R)∗= R∗,2) S ·R∗= R∗if L(S) ⊆L(R∗) and ε ∈S, and 3) S + R = R if L(S) ⊆L(R).
- Write a program in the Java language requires the management of university students, where student data (name, student number, and specialization) are saved, and then he can add and delete study materials for the current semester, and you can also add the grade for each subject (with the addition of the final code for the degree automatically).Note: The class principle is used to solve this assignment.Write a program that asks a user to enter a first name, a last name, and a year, andconstruct an account ID in the format of:firstname.lastnameYYwhere the field “firstname” is user’s first name allowing no more than (first) five letters;the field “lastname” is user’s last name allowing no more than (first) six letters; and thefiled “YY” is the lower two digits of the year. For example:first name entered: Michaellast name entered: Richmondyear entered: 1985 the constructed account ID will be: Micha.Richmo85In python. Please do not copy elsewhere as it is all incorrect, and include docstring so that I can understand the information so I can apply the methods to future problems. Thanks. import the **json** module.Write a class named SatData that reads a [JSON file containing data on 2010 SAT results for New York City](https://data.cityofnewyork.us/api/views/zt9s-n5aj/rows.json?accessType=DOWNLOAD) and writes the data to a text file in CSV format. That same JSON file will be provided as a local file in Gradescope named **sat.json**. Your code does not need to access the internet.CSV is a very simple format - just commas separating columns and newlines separating rows (see note below about commas that are part of field names). You'll see an example of CSV format below. There is a csv module for Python, but you will not use it for this project.Your class should have:* an init method that reads the file and stores it in whatever data member(s) you prefer. Any data members of the SatData class…