COVID-19 has an effect on the whole world. People are interested in knowing the current situation of COVID-19. You are required to write JAVA-program for storing information in a Single way Linked List. Following JAVA classes are provided. // Node class public class COVIDDetail {      public String country;      public int activecases;      public COVIDDetail next;   } // linked List class public class COVIDList {      COVIDDetail start=null;           } You are required to add the following methods to COVIDList class void add(COVIDDetail n) this method receives a node as an argument and adds it to the given list. Nodes are arranged in descending order with respect to number of cases. Note that you are not required to sort the list in fact while adding first find its appropriate position and then add a given node to that position. void updateCases(String country_name , int cases) this method receives two-argument country names and cases (can have positive or negative value). Update active cases of those countries whose name matches with the one provided as an argument, by adding activecases with cases (value provided as argument). String maxCases( ) returns the name of the country with a maximum number of cases. void displayData( ) display data of least effected country. COVIDList covidFreeCountries( ) returns new list of those countries which are COVID free. A country whose active cases are 0 is considered to be COVID free.

Computer Networking: A Top-Down Approach (7th Edition)
7th Edition
ISBN:9780133594140
Author:James Kurose, Keith Ross
Publisher:James Kurose, Keith Ross
Chapter1: Computer Networks And The Internet
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COVID-19 has an effect on the whole world. People are interested in knowing the current situation of COVID-19. You are required to write JAVA-program for storing information in a Single way Linked List. Following JAVA classes are provided.

// Node class

public class COVIDDetail

{

     public String country;

     public int activecases;

     public COVIDDetail next;

 

}

// linked List class

public class COVIDList

{

     COVIDDetail start=null;

    

    

}

You are required to add the following methods to COVIDList class

  1. void add(COVIDDetail n) this method receives a node as an argument and adds it to the given list. Nodes are arranged in descending order with respect to number of cases. Note that you are not required to sort the list in fact while adding first find its appropriate position and then add a given node to that position.
  2. void updateCases(String country_name , int cases) this method receives two-argument country names and cases (can have positive or negative value). Update active cases of those countries whose name matches with the one provided as an argument, by adding activecases with cases (value provided as argument).
  3. String maxCases( ) returns the name of the country with a maximum number of cases.
  4. void displayData( ) display data of least effected country.
  5. COVIDList covidFreeCountries( ) returns new list of those countries which are COVID free. A country whose active cases are 0 is considered to be COVID free.
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