5.13 Ch 5 Program: Soccer team roster (Java) This program will store roster and
ID: 3591647 • Letter: 5
Question
5.13 Ch 5 Program: Soccer team roster (Java)
This program will store roster and rating information for a soccer team. Coaches rate players during tryouts to ensure a balanced team.
(1) Prompt the user to input five pairs of numbers: A player's jersey number (0 - 99) and the player's rating (1 - 9). Store the jersey numbers in one int array and the ratings in another int array. Output these arrays (i.e., output the roster). (3 pts)
Ex:
(2) Implement a menu of options for a user to modify the roster. Each option is represented by a single character. The program initially outputs the menu, and outputs the menu after a user chooses an option. The program ends when the user chooses the option to Quit. For this step, the other options do nothing. (2 pt)
Ex:
(3) Implement the "Output roster" menu option. (1 pt)
Ex:
(4) Implement the "Update player rating" menu option. Prompt the user for a player's jersey number. Prompt again for a new rating for the player, and then change that player's rating. (1 pt)
Ex:
(5) Implement the "Output players above a rating" menu option. Prompt the user for a rating. Print the jersey number and rating for all players with ratings above the entered value. (2 pts)
Ex:
(6) Implement the "Replace player" menu option. Prompt the user for the jersey number of the player to replace. If the player is in the roster, then prompt again for a new jersey number and rating. Update the replaced player's jersey number and rating. (2 pts)
Ex:
My code:
import java.util.Scanner;
public class PlayerRoster {
public static void main(String[] args)
{
int jersyNumber[] = new int[5];
int rating[] = new int[5];
Scanner scan=new Scanner(System.in);
for (int i = 0; i < 5; i++){
System.out.println("Enter player " + (i+1) + "'s jersey number:");
jersyNumber[i] = scan.nextInt();
System.out.println("Enter player " + (i+1) + "'s rating:");
System.out.println("");
rating[i] = scan.nextInt();
}
while(true)
{System.out.println("ROSTER"); for (int i = 0; i < 5; i++){
System.out.println("Player "+ (i+1) + " -- Jersey number: " + jersyNumber[i] + ", Rating: " + rating[i]);}
System.out.println(" MENU u - "+"Update player rating a - "+"Output players above a rating r - "+"Replace player o - Output roster q - Quit ");
System.out.print("Choose an option:");
char choice = scan.next().charAt(0);
if(choice == 'u')
{
System.out.print
("Enter a jersey number: ");
int number = scan.nextInt();
for (int i = 0; i < 5; i++){
if(jersyNumber[i] == number){
System.out.print("Enter a new rating "+"for player: ");
rating[i] = scan.nextInt();
}
}
}
if(choice == 'a')
{
System.out.print("Enter a rating: ");
int rate = scan.nextInt();
System.out.println("ABOVE 5");
for (int i = 0; i < 5; i++)
{
if(rating[i] > rate)
System.out.println("Player "+"-- Jersey number: "+ jersyNumber[i] +", Rating: " +rating[i]);
}
}
if(choice == 'r'){
System.out.print("Enter a jersey number: ");
int number = scan.nextInt();
for (int i = 0; i < 5; i++)
{
if(jersyNumber[i] == number){
System.out.print("Enter a new "+"jersey number: ");
jersyNumber[i] =
scan.nextInt();
System.out.print("Enter a rating "+"for the new player: ");
rating[i] = scan.nextInt();}
}
}
if(choice == 'o'){
System.out.println("ROSTER");
for (int i = 0; i < 5; i++){
System.out.println("Player "+ (i+1) + "-- Jersey number: " + jersyNumber[i] + ", Rating: " + rating[i]);
}
}
if(choice == 'q'){
System.out.println("");
System.exit(0);
System.out.println("");}
}}}
Errors for number 6 & 7:
6: Compare output 84 7 23 4 30 2 66 9 Input ABOVE 4 Player Jersey number: 84, Rating:7 Player-Jersey number: 4, Rating: 5 Player Jersey number: 66, Rating: 9 ROSTER Player 1 - Jersey number: 84, Rating: 7 Player 2 -Jersey number: 23, Rating: 4 Player 3Jersey number: 4, Rating: 5 Player 4Jersey number: 30, Rating: 2 Player 5 --Jersey number: 66, Rating: 9 Your output ends with MENU u Update player rating aOutput players above a rating r - Replace player oOutput roster Quit Choose an option: ABOVE 4 Player 1 -- Jersey number: 84, Rating: 7 Player 3Jersey number: 4, Rating: 5 Player 5 -- Jersey number: 66, Rating : 9 MENU u - Update player rating aOutput players above a rating r - Replace player oOutput roster gQuit Expected output ends with Choose an option:Explanation / Answer
Player.java
public class Player {
//Declaring instance variables
private int jerseyNum;
private int rating;
//Parameterized constructor
public Player(int jerseyNum, int rating) {
super();
this.jerseyNum = jerseyNum;
this.rating = rating;
}
//getters and setters
public int getJerseyNum() {
return jerseyNum;
}
public void setJerseyNum(int jerseyNum) {
this.jerseyNum = jerseyNum;
}
public int getRating() {
return rating;
}
public void setRating(int rating) {
this.rating = rating;
}
//toString method is used to display the contents of an object inside it
@Override
public String toString() {
return "Jersey number :" + jerseyNum + ", Rating=" + rating;
}
}
___________________
Test.java
import java.util.ArrayList;
import java.util.Scanner;
public class Test {
//Creating an ArrayList
static ArrayList < Player > arl = new ArrayList < Player > ();
public static void main(String[] args) {
//Declaring variables
char choice;
int jerseyNum, rating;
/*
* Creating an Scanner class object which is used to get the inputs
* entered by the user
*/
Scanner sc = new Scanner(System.in);
/* This while loop continues to execute
* until the user enters a valid input choice
*/
while (true) {
//displaying the menu
System.out.println(" MENU");
System.out.println("a - Add Player");
System.out.println("d - Delete Player");
System.out.println("u - Update Player Rating");
System.out.println("r - Output Players above a rating");
System.out.println("o - Output Roster");
System.out.println("q - Quit");
//getting the choice entered by the user
System.out.print("Enter Choice :");
choice = sc.next(".").charAt(0);
//Based on the user choice the corresponding case will executed
switch (choice) {
case 'a':
{
for (int i = 0; i < 5; i++) {
System.out.print("Enter a new Player's jersey number :");
jerseyNum = sc.nextInt();
System.out.print("Enter the player's rating :");
rating = sc.nextInt();
Player p = new Player(jerseyNum, rating);
arl.add(p);
}
continue;
}
case 'd':
{
System.out.print("Enter a Player's jersey number :");
jerseyNum = sc.nextInt();
int index = searchPlayer(jerseyNum);
if (index == -1) {
System.out.println("** Player not found **");
} else {
arl.remove(index);
}
continue;
}
case 'u':
{
System.out.print("Enter a Player's jersey number :");
jerseyNum = sc.nextInt();
int index = searchPlayer(jerseyNum);
if (index == -1) {
System.out.println("** Player not found **");
} else {
System.out.print("Enter the player's rating :");
rating = sc.nextInt();
arl.get(index).setRating(rating);
}
continue;
}
case 'r':
{
System.out.print("Enter a rating :");
rating = sc.nextInt();
System.out.println("ABOVE " + rating);
for (int i = 0; i < arl.size(); i++) {
if (arl.get(i).getRating() > rating) {
System.out.println("Player" + (i + 1) + " -- " + arl.get(i).toString());
}
}
continue;
}
case 'o':
{
System.out.println("ROSTER");
for (int i = 0; i < arl.size(); i++) {
System.out.println("Player" + (i + 1) + " -- " + arl.get(i).toString());
}
continue;
}
case 'q':
{
System.out.println("** PROGRAM EXIT**");
break;
}
default:
{
System.out.println("Invalid Choice");
continue;
}
}
break;
}
}
//This method will check whether the jersey number is available in the array list or not
private static int searchPlayer(int jerseyNum) {
for (int i = 0; i < arl.size(); i++) {
if (arl.get(i).getJerseyNum() == jerseyNum)
return i;
}
return -1;
}
}
____________________
Output:
MENU
a - Add Player
d - Delete Player
u - Update Player Rating
r - Output Players above a rating
o - Output Roster
q - Quit
Enter Choice :a
Enter a new Player's jersey number :84
Enter the player's rating :7
Enter a new Player's jersey number :23
Enter the player's rating :4
Enter a new Player's jersey number :4
Enter the player's rating :5
Enter a new Player's jersey number :30
Enter the player's rating :2
Enter a new Player's jersey number :66
Enter the player's rating :9
MENU
a - Add Player
d - Delete Player
u - Update Player Rating
r - Output Players above a rating
o - Output Roster
q - Quit
Enter Choice :o
ROSTER
Player1 -- Jersey number :84, Rating=7
Player2 -- Jersey number :23, Rating=4
Player3 -- Jersey number :4, Rating=5
Player4 -- Jersey number :30, Rating=2
Player5 -- Jersey number :66, Rating=9
MENU
a - Add Player
d - Delete Player
u - Update Player Rating
r - Output Players above a rating
o - Output Roster
q - Quit
Enter Choice :r
Enter a rating :5
ABOVE 5
Player1 -- Jersey number :84, Rating=7
Player5 -- Jersey number :66, Rating=9
MENU
a - Add Player
d - Delete Player
u - Update Player Rating
r - Output Players above a rating
o - Output Roster
q - Quit
Enter Choice :u
Enter a Player's jersey number :30
Enter the player's rating :7
MENU
a - Add Player
d - Delete Player
u - Update Player Rating
r - Output Players above a rating
o - Output Roster
q - Quit
Enter Choice :o
ROSTER
Player1 -- Jersey number :84, Rating=7
Player2 -- Jersey number :23, Rating=4
Player3 -- Jersey number :4, Rating=5
Player4 -- Jersey number :30, Rating=7
Player5 -- Jersey number :66, Rating=9
MENU
a - Add Player
d - Delete Player
u - Update Player Rating
r - Output Players above a rating
o - Output Roster
q - Quit
Enter Choice :d
Enter a Player's jersey number :4
MENU
a - Add Player
d - Delete Player
u - Update Player Rating
r - Output Players above a rating
o - Output Roster
q - Quit
Enter Choice :o
ROSTER
Player1 -- Jersey number :84, Rating=7
Player2 -- Jersey number :23, Rating=4
Player3 -- Jersey number :30, Rating=7
Player4 -- Jersey number :66, Rating=9
MENU
a - Add Player
d - Delete Player
u - Update Player Rating
r - Output Players above a rating
o - Output Roster
q - Quit
Enter Choice :q
** PROGRAM EXIT**
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