2. Using JCreator, create a new Java application file and write the following code. Name the file as java public interface aports { public void setHomeTeam (8tring name) ; public void aetvisitingTeam (String name); 3. Create another Java interface file that will extend the java interface using the extends keyword Provide at least three (3) additional methods for this Java application file similar to the ones on the Sports java interface
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- Need help with implementing of this program in C# by using Interface. Task: RenameFile Create an interface IUndoable to represent actions that can be reversed. Create a class that renames a file, and make it undoable.You are required to develop a small chatting application where two or more friends can communicate each other through messages. Create a class Message which has Date date, and message (string). Provide getters/setters, constructors, toString. Create a class Friend having String name, String contact, email provide getters/setters, constructors, toString. Provide following options to the user. Add Friend (which add new friend to the Friends file) View Friends (read data from Friends file and display) Send message(This should ask for friend name and message match the friend name and write that message to the inbox file). Read messages (This show all messages form inbox on JList or Text area. Note:Create a manager class with methods use to read and write messages to “inbox” file you should write sentMessage(Friend f,Message message) method which write the messages to the file user can send as many message as he/she wants (use loop and arraylist). Write another method readMessages()…You are required to develop a small chatting application where two or more friends can communicate each other through messages. Create a class Message which has Date date, and message (string). Provide getters/setters, constructors, toString. Create a class Friend having String name, String contact, email provide getters/setters, constructors, toString. Provide following options to the user. Add Friend (which add new friend to the Friends file) View Friends (read data from Friends file and display) Send message (This should ask for friend name and message match the friend name and write that message to the inbox file). Read messages (This show all messages form inbox on JList or Text area. Note: Create a manager class with methods use to read and write messages to “inbox” file you should write sentMessage(Friend f, Message message) method which write the messages to the file user can send as many message as he/she wants (use loop and arraylist). Write another method readMessages()…
- Consider a file StudentInformation.txt contains some student objects. Each student object has three variables Name, Id and CGPA. Write Java code fragment to show only those student objects whose CGPA is greater than 3.5. Assume that the Student class has already been created. You need to access the StudentInformation.txt file, read all the objects and display only the required objects.Create a new Java Application project called lab_07 Part 1: 1. Copy the source file Square class you crated in Lab 03 and paste the source file in the default package (you may need to fix any problems related to package declaration). 2. Open Square class using NetBeans editor. 3. Modify the class implementation to throw IllegalArgumentException if the side’s length is negative. You should modify the implementation of the arguments constructor and setSide method to throw the IllegalArgumentException. Use the following constructor header as a start: /** * Construct a Square object with the specified side’s length * @param side the side’s length of a square * @throws IllegalArgumentException if the side’s length is negative */ public Square (double side) throws IllegalArgumentException { // implement it } Part 2: 1. Write a program that prompts the user to read two integers and displays their sum. Your program should prompt the user to enter the number again if the input is…Note: You must use proper naming convention for the Java code and you need to briefly elaborate keywords, concept, and logic in your own words. Task 2.2. Using the same scenario, implement (in Java) a console application for writing data to a sequential text file with a formatter class in Java. Implement createFile() method - To open/create a new file named as 'mec.txť with explanations of the methods involved. Implement writeRecord() method – User enter the employee name, employee id, gross salary, tax rate, income tax and net salary from the keyboard and write/add these values to the file 'mec.txt' with explanations of the methods involved. The input fields must be validated as necessary. Implement closeFile() method – Close the file with explanations of the methods involved. Note: You must use proper naming convention for the Java code and you need to briefly elaborate keywords, concept, and logic in your own words. Task 3 Dranare a ranort to nrocent the work done from taek 2 The…
- 2. Read all eight messages into Mailbox object from the file of "messages1.txt". The values for each line will be used to initialize each instance variable of the Message object, and then added into the Mailbox object. Important: Your must read the values in from the file using Scanner object, you are not allowed to initialize the objects manually. 3. Print out all messages using printAllMessages () method. Your output should look like Figure 2. Bluel: Terminal Window - 1 Solution Options Message list in the mailbox after loading from a file Message 1 From: Eric_A_Bially To: Zachary_B_Howard This is_test_message_1 Message 2 From: Brett_V_Bohorquez To: Marcus_R_McPartland This is_test_message_2 Message 3 From: Aron_I_Brewster To: Patrick_C_Nauman This is_test_message_3 Message 4 From: Joshua_J_Dennis To: Jacob_G_Neff This_is_test_message_4 Message 5 From: Stephen_M_Gentzler To: Kevin_A_0rlowski This is_test_message_5 Message 6 From: Adam_James_D_Geosits To: Oscar_J_Phillips This…JAVA Problem – CycleFileInput Revisit the Cycle class . Modify your application such that the properties will be read from a text file called “Cycle.txt”. Directions Examine your application for the class called Cycle. Add an appropriate throws statement in the main method. Create a reference to a File class with the appropriate name of a text file (Cycle.txt). Note: Cycle.txt was created in the previous assignment, CycleFileOutput. In your code, check that the text file does exist. Input the values from the file to memory. Close the file. public class Cycle { // Declear integer instance variable private int numberOfWheels; private int weight; // Constructer declear class public Cycle(int numberOfWheels, int weight ) { this.numberOfWheels = numberOfWheels; this.weight = weight; } // String method for output public String toString() { String wheel = String.valueOf(this.numberOfWheels); String load = String.valueOf(this.weight); return("No of wheels in cycle = " +…The file Names.txt is located in the folder input_files within your project. The content of that file is shown in the following figure Java: import java.io.FileInputStream;import java.io.FileNotFoundException;import java.util.ArrayList;import java.util.Scanner;public class Question2 {public static void main(String[] args) throws FileNotFoundException {/*** Part a* Finish creating an ArrayList called NameList that stores the names in the file Names.txt.*/ArrayList<String> NameList;/*** Part b* Replace null on the right-hand-side of the declaration of the FileInputStream object named inputStream* so that it is initialized correctly to the Names.txt file located in the folder specified in the question description*/FileInputStream inputStream = null;Scanner scnr = new Scanner(inputStream); //Do not modify this line of code/*** Part c* Using a loop and the Scanner object provided, read the names from Names.txt* and store them in NameList created in Part a.*//*** Part d* Reorder the…
- In this assignment, you will create a Java program to read undergraduate and graduate students from an input file, sort them, and write them to an output file. This assignment is a follow up of assignment 5. Like assignment 5, your program will read from an input file and write to an output file. The input file name and the output file name are passed in as the first and second arguments at command line, respectively. Unlike assignment 5, the Student objects are sorted before they are written to the output file. • The program must implement a main class, three student classes (Student, UndergradStudent, GradStudent), and a Comparator class called StudentIDComparator. • The StudentIDComparator class must implement the java.util.Comparator interface, and override the compare() method. Since the Comparator interface is a generic interface, you must specify Student as the type parameter when defining the StudentIDComparator class, i.e., public class StudentIDComparator implements…Implement (in Java) a console application for writing data to a sequential text file with a formatter class in Java : a. Implement createFile() method – To open/create a new file named as ‘mec.txt’ with explanations of the methods involved. b. Implement writeRecord() method – User enter the employee name, employee id, gross salary, tax rate, income tax and net salary from the keyboard and write/add these values to the file ‘mec.txt’ with explanations of the methods involved. The input fields must be validated as necessary. c. Implement closeFile() method – Close the file with explanations of the methods involved.ASSIGNMENTWrite a Java program that meets these requirements.• Create a NetBeans project named LastnameAssign1. Change Lastname to your last name. For example, my project would be named NicholsonAssign1.• In the Java file, print a welcome message that includes your full name.• The program should prompt for an XML filename to write too The filename entered must end with .xml and have at least one letter before the period. If it does not, print a warning and prompt again. Keep nagging the user until a proper filename is entered.• Prompt the user for 3 integers.o The three integers represent red, blue, and green channel values for a color.o Process the numbers according to the instructions belowo Once you have handled the 3 input values, prompt the user againo Keep prompting the user for 3 integers until the user enters the single word DONEo Reading input should not stop for any reason except for when the user enters DONE.o The user will not mix DONE and the numbers. The user will either…