Question

Answer in 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:

Enter player 1's jersey number:
84
Enter player 1's rating:
7

Enter player 2's jersey number:
23
Enter player 2's rating:
4

Enter player 3's jersey number:
4
Enter player 3's rating:
5

Enter player 4's jersey number:
30
Enter player 4's rating:
2

Enter player 5's jersey number:
66
Enter player 5's rating:
9

ROSTER
Player 1 -- Jersey number: 84, Rating: 7
Player 2 -- Jersey number: 23, Rating: 4
...
(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:

MENU
u - Update player rating
a - Output players above a rating
r - Replace player
o - Output roster
q - Quit

Choose an option:
(3) Implement the "Output roster" menu option. (1 pt)

Ex:

ROSTER
Player 1 -- Jersey number: 84, Rating: 7
Player 2 -- Jersey number: 23, Rating: 4
...
(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:

Enter a jersey number:
23
Enter a new rating for player:
6
...
(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:

Enter a rating:
5

ABOVE 5
Player 1 -- Jersey number: 84, Rating: 7
...
(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:

Enter a jersey number:
4
Enter a new jersey number:
12
Enter a rating for the new player:
8
Default Template:

PlayerRoster

import java.util.Scanner;

public class PlayerRoster {
public static void main(String[] args) {
Scanner scnr = new Scanner(System.in);

/* Type your code here. */
}
}

Answer 1

In Java, to manage a soccer team's roster and player ratings, arrays are used to store data, a menu allows user interaction, and each menu option triggers specific functions like updating ratings, displaying players with ratings above a certain level, and replacing players in the roster.

Step-by-step explanation:

In Java, to create a program for managing a soccer team's roster and player ratings, you'll need to use arrays to store jersey numbers and ratings, provide a menu for user actions, and implement functions corresponding to each menu option. Below is a simplified version of what the main parts of the program might look like:

Storing jersey numbers and ratings:

You would prompt the user to enter five pairs of jersey numbers and ratings, storing them in two int arrays. After input is received, these arrays are then outputted to display the roster.

Menu implementation:

A menu with options such as 'Update player rating', 'Output players above a rating', 'Replace player', 'Output roster', and 'Quit' would be displayed to the user. The user chooses an option, and the program performs the corresponding action.

Menu option functionalities:

• 
  
• To update a player's rating, the program would prompt for the player's jersey number and the new rating, updating the array accordingly.
• 
  
• 'Output players above a rating' would prompt the user for a threshold rating, then display all players with ratings above that threshold.
• 
  
• For replacing a player, the user would enter the current and new jersey numbers and ratings, with the program updating the arrays as needed.

This approach encapsulates the basic functionality specified in your task and provides a template for further development and refinement.