Question

Problem Description: In JAVA

The popularity ranking of baby names are provided every year by the Social Security Administration. Write a program that reads from the keyboard the ranking list. Each line contains a ranking, a boy’ name, and a girl’s name (ends with 0). For example, the first two lines are as follows:

1 Liam Emma

2 Noah Olivia

So, the boy’s name Liam and girl’s name Emma are ranked #1 and the boy’s name Noah and girl’s name Olivia are ranked #2. The program then reads from the keyboard the gender (‘M’ for boys and ‘F’ for girls) followed by a name, and displays the ranking of the name. Input ends with an ‘E’. If a name is not on the list, the ranking is -1. Run and make sure that your program produces exactly the same output for each of the sample inputs

listed below.

Sample Input 1:

1 Liam Emma

2 Noah Olivia

21 Samuel Grace

22 Sebastian Chloe

23 David Camila

24 Carter Penelope

25 Wyatt Riley

29 Dylan Zoey

30 Luke Mila

31 Gabriel Aubrey

32 Anthony Hannah

135 Ivan Arya

136 Maddox Norah

137 Juan Khloe

138 Ashton Kayla

139 Jayce Eden

0

M Luke

F Mila

F Jackson

F Chloe

M Ashton

M Isla

E

Sample Output 1:

30

30

-1

22

138

-1

Sample Input 2:

163 Xander Jocelyn

164 Timothy Kimberly

165 Victor Esther

166 Bryce Molly

171 Patrick Reese

172 Grant Laila

173 Karter Mya

174 Hayden Amy

175 Richard Teagan

248 Jake Jessica

249 Killian Remi

250 Clayton Delaney

251 Sean Camille

807 Emory Scarlette

808 Skylar Belle

809 Sutton Lea

810 Alfonso Nalani

811 Brentley Rivka

812 Toby Ayleen

813 Blaze Calliope

814 Eugene Dalary

815 Shiloh Zaniyah

0

F Iker

M Hayden

M Xander

F Jessica

M Emory

F Zaniyah

E

Sample Output 2:

-1

174

163

248

807

815

Sample Input 3:

695 Lachlan Chaya

696 Layne Frida

697 Clay Bonnie

698 Madden Amora

699 Jamir Stevie

890 Draven India

891 Xzavier Janessa

892 Darrell Paloma

893 Keanu Ramona

894 Ronnie Sandra

895 Konnor Abril

945 Vivaan Legacy

946 Brayson Marjorie

947 Emmet Paityn

948 Marley Courtney

949 Mike Ellianna

950 Nickolas Jurnee

951 Kenny Karlie

0

M Emmet

F Frida

F Denver

F Paloma

M Texas

F Louisiana

E

Sample Output 3:

947

696

-1

892

-1

-1

Answer 1

import java.util.*;
import java.util.ArrayList;

//class Ranking
class Ranking
{
   //main method
   public static void main (String[] args)
   {
       //declare ArrayLists
       ArrayList <Integer>rank = new ArrayList<>();
       ArrayList <String>boys = new ArrayList<>();
       ArrayList <String>girls = new ArrayList<>();
      
       //create an instance of Scanner class
       Scanner sc = new Scanner(System.in);
      
       //while loop
       while(true)
       {
           //read rank
           int r = sc.nextInt();
           //check if zero
           if(r==0) break;
           //add to the ArrayList
           rank.add(r);
           //read boy's name
           String boy = sc.next();
           //add to the ArrayList
           boys.add(boy);
           //read girl's name
           String girl = sc.next();
           //add to the ArrayList
           girls.add(girl);
       }
      
       //declare ArrayLists
       ArrayList <Character>genders = new ArrayList<>();
       ArrayList <String>names = new ArrayList<>();
      
       //while loop
       while(true)
       {
           //read gender
           char gender = sc.next().charAt(0);
           //check if 'E'
           if(gender=='E') break;
           //add to the ArrayList
           genders.add(gender);
           //read the name
           String name = sc.next();
           //add to the ArrayList
           names.add(name);
       }
      
       //for loop
       for(int i=0; i<names.size(); i++)
       {
           //get gender and name from ArrayList
           char gender = genders.get(i);
           String name = names.get(i);
          
           int pos;
           //check if gender 'M'
           if(gender=='M')
               pos = boys.indexOf(name);
           else
               pos = girls.indexOf(name);
          
           //check if -1 otherwist print the rank
           if(pos==-1)
               System.out.println("-1");
           else       
               System.out.println(rank.get(pos));
       }
   }
}

Output 1:

Output 2:

163 Xander Jocelyn

164 Timothy Kimberly

165 Victor Esther

166 Bryce Molly

171 Patrick Reese

172 Grant Laila

173 Karter Mya

174 Hayden Amy

175 Richard Teagan

248 Jake Jessica

249 Killian Remi

250 Clayton Delaney

251 Sean Camille

807 Emory Scarlette

808 Skylar Belle

809 Sutton Lea

810 Alfonso Nalani

811 Brentley Rivka

812 Toby Ayleen

813 Blaze Calliope

814 Eugene Dalary

815 Shiloh Zaniyah

0

F Iker

M Hayden

M Xander

F Jessica

M Emory

F Zaniyah

E
-1
174
163
248
807
815

Output 3:

695 Lachlan Chaya

696 Layne Frida

697 Clay Bonnie

698 Madden Amora

699 Jamir Stevie

890 Draven India

891 Xzavier Janessa

892 Darrell Paloma

893 Keanu Ramona

894 Ronnie Sandra

895 Konnor Abril

945 Vivaan Legacy

946 Brayson Marjorie

947 Emmet Paityn

948 Marley Courtney

949 Mike Ellianna

950 Nickolas Jurnee

951 Kenny Karlie

0

M Emmet

F Frida

F Denver

F Paloma

M Texas

F Louisiana

E
947
696
-1
892
-1
-1

N.B Whether you face any problem then share with me in the comment section, I'll happy to help you. I expect positive feedback from your end.

1 Liam Emma 2 Noah Olivia 21 Samuel Grace 22 Sebastian Chloe 23 David Camila 24 Carter Penelope 25 Wyatt Riley 29 Dylan Zoey 30 Luke Mila 31 Gabriel Aubrey 32 Anthony Hannah 135 Ivan Arya 136 Maddox Norah 137 Juan Khloe 138 Ashton Kayla 139 Jayce Eden M Luke F Mila F Jackson F Chloe MAshton M Isla 30