Discrete distribution. Write a program DiscreteDistribution.java that takes an integer command-line argument m, followed by a sequence of positive integer command-line arguments a1,a2,…,ana1,a2,…,an, and prints m random indices (separated by whitespace), choosing each index i with probability proportional to ai.  example: input = 25 1 1 1 1 1 1  output = 413523654321234563452345

Computer programming. Java.

In Java Please

Write a set of Java classes that can simulate an Internet application in which one party, Alice, is periodically creating a set of packets that she wants to send to Bob. An Internet process is continually checking if Alice has any packets to send, and if so, it delivers them to Bob’s computer; Bob is periodically checking if his computer has a packet from Alice, and if so, he reads and deletes it.

Utilize Salary.java. The file contains a program that shows how a manager decides an employee’s salary. Two input values are read in: an employee’s current salary a rating of the employee’s performance // ************************************************************// Salary.java// ************************************************************import java.util.Scanner;import java.text.NumberFormat;public class Salary{    public static void main (String[] args)    {        double currentSalary; // employee's current salary        double raise; // amount of the raise        double newSalary; // new salary for the employee                int rating; // performance rating        Scanner scan = new Scanner(System.in);        System.out.print ("Enter the current salary: ");        currentSalary = scan.nextDouble();        System.out.print ("Enter the performance rating (3 is Excellent, 2 is Good, or 1 is Poor): ");        rating = scan.nextInt();                 // Enter the code here:…

A private hospital would like to implement a Java application to manage patient-specialist appointment. The hospital has five specialists, in different areas of medicine (e.g. cardiac, renal, paediatric). These specialists have regular slots for appointments every week. For example, the cardiac specialist may have six slots available on Monday, Wednesday and Friday; for simplicity, we assume each slot starts on the hour (e.g. 9am, 10am etc).The system should be used by patients to schedule an appointment with a specialist. Each patient will first enter their unique hospital id number, and then the specialist they want to meet and desired date. The system will list the available slots for that specialist. The patient may then select one of the availableslots, select a different date, or a different specialist. The patient should also be shown a list of all booked appointments, which they have yet to attend. When the patient arrives for their appointment, they need to enter their…

Write a unit conversion program that asks the users from which unit they want to convert(gal, oz, lb, ft, mi) and to which unit they want to convert (l, g, kg, m, km). Rejectincompatible conversions (such as gal → km). Ask for the value to be converted, thendisplay the result:Convert from? galConvert to? mlValue? 2.52.5 gal = 9462.5 ml

Implement the following in the .NET Console App. Write the Bus class. A Bus has a length, a color, and a number of wheels.    a.    Implement data fields using auto-implemented Properies  b.    Include 3 constructors: default, the one that receives the Bus length, color and a number of wheels as input (utilize the Properties) and the Constructor that takes the Bus number (an integer) as input.

Use java.

The first image is the main question, the second image is the instructions for the program. The program has to be written in Java.