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:

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 

Here is what I have so far:

import java.util.Scanner;

public class PlayerRoster { public static void main(String[] args) { Scanner scnr = new Scanner(System.in); final int NUM_PPL = 5; int[] jerseyNum = new int[NUM_PPL]; int[] ratingNum = new int[NUM_PPL]; int i = 0; char menuChar = 'b'; int changedPlayer = 0; int newRating = 0; int ratingAbove = 0; for (i = 0; i < NUM_PPL; ++i) { System.out.println("Enter player " + (i + 1) + "'s jersey number:"); jerseyNum[i] = scnr.nextInt(); System.out.println("Enter player " + (i + 1) + "'s rating:"); ratingNum[i] = scnr.nextInt(); System.out.println(""); } System.out.println("ROSTER"); for (i = 0; i < NUM_PPL; ++i) { System.out.println("Player " + (i + 1) + " -- Jersey number: " + jerseyNum[i] + ", Rating: " + ratingNum[i]); } System.out.println(""); while (menuChar != 'q') { if (menuChar == 'o') { System.out.println("ROSTER"); for (i = 0; i < NUM_PPL; ++i) { System.out.println("Player " + (i + 1) + " -- Jersey number: " + jerseyNum[i] + ", Rating: " + ratingNum[i]); } } System.out.println("MENU"); System.out.println("u - Update player rating"); System.out.println("a - Output players above a rating"); System.out.println("r - Replace player"); System.out.println("q - Quit"); System.out.println(""); System.out.println("Choose an option:"); menuChar = scnr.next().charAt(0); } return; } }