Homework SourseThis program will store roster and rating information for a
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:
CODE GIVEN:
import java.util.Scanner;
public class PlayerRoster {
public static void main(String[] args) {
/* Type your code here. */
return;
}
}
Solution
import java.util.Scanner;
/**
* @author
*
*/
public class PlayerRoster {
/**
* @param args
*/
public static void main(String[] args) {
/* Type your code here. */
Scanner scanner = null;
try {
scanner = new Scanner(System.in);
int[] playerJerseyNumber = new int[5];
int[] playerRating = new int[5];
for (int i = 0; i < 5; i++) {
System.out.print(\"Enter player \" + (i + 1)
+ \"\'s jersey number: \");
playerJerseyNumber[i] = scanner.nextInt();
System.out.print(\"Enter player \" + (i + 1) + \"\'s rating: \");
playerRating[i] = scanner.nextInt();
}
System.out.println(\"ROSTER\");
for (int i = 0; i < 5; i++) {
System.out.println(\"Player \" + (i + 1) + \" -- Jersey number: \"
+ playerJerseyNumber[i] + \", Rating: \"
+ playerRating[i]);
}
do {
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 = scanner.next().charAt(0);
switch (choice) {
case \'u\': {
System.out.print(\"Enter a jersey number: \");
int playerJersey = scanner.nextInt();
System.out.print(\"Enter a new rating for player:\");
int newRating = scanner.nextInt();
for (int i = 0; i < 5; i++) {
if (playerJerseyNumber[i] == playerJersey) {
playerRating[i] = newRating;
break;
}
}
}
break;
case \'a\': {
System.out.print(\"Enter a rating:\");
int aboveRating = scanner.nextInt();
for (int i = 0; i < 5; i++) {
if (playerRating[i] > aboveRating) {
System.out.println(\"Player \" + (i + 1)
+ \" -- Jersey number: \"
+ playerJerseyNumber[i] + \", Rating: \"
+ playerRating[i]);
}
}
}
break;
case \'r\': {
boolean flag = true;
do {
System.out.print(\"Enter a jersey number: \");
int playerJersey = scanner.nextInt();
System.out.print(\"Enter a new jersey number: \");
int playerNewJersey = scanner.nextInt();
System.out.print(\"Enter a new rating for player:\");
int newRating = scanner.nextInt();
for (int i = 0; i < 5; i++) {
if ((playerJerseyNumber[i] == playerJersey)) {
playerJerseyNumber[i] = playerNewJersey;
playerRating[i] = newRating;
flag = false;
break;
}
}
if (!flag) {
System.out
.println(\"Error: Invalid Jersey Number...\ Try Again...\");
}
} while (flag);
}
break;
case \'o\': {
System.out.println(\"ROSTER\");
for (int i = 0; i < 5; i++) {
System.out.println(\"Player \" + (i + 1)
+ \" -- Jersey number: \" + playerJerseyNumber[i]
+ \", Rating: \" + playerRating[i]);
}
}
break;
case \'q\':
break;
default:
break;
}
if (choice == \'q\')
break;
} while (true);
} catch (Exception e) {
// TODO: handle exception
}
return;
}
}
OUTPUT:
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
Player 3 -- Jersey number: 4, Rating: 5
Player 4 -- Jersey number: 30, Rating: 2
Player 5 -- Jersey number: 66, Rating: 9
MENU
u - Update player rating
a - Output players above a rating
r - Replace player
o - Output roster
q - Quit
Choose an option: o
ROSTER
Player 1 -- Jersey number: 84, Rating: 7
Player 2 -- Jersey number: 23, Rating: 4
Player 3 -- Jersey number: 4, Rating: 5
Player 4 -- Jersey number: 30, Rating: 2
Player 5 -- Jersey number: 66, Rating: 9
MENU
u - Update player rating
a - Output players above a rating
r - Replace player
o - Output roster
q - Quit
Choose an option: u
Enter a jersey number: 23
Enter a new rating for player:6
MENU
u - Update player rating
a - Output players above a rating
r - Replace player
o - Output roster
q - Quit
Choose an option: o
ROSTER
Player 1 -- Jersey number: 84, Rating: 7
Player 2 -- Jersey number: 23, Rating: 6
Player 3 -- Jersey number: 4, Rating: 5
Player 4 -- Jersey number: 30, Rating: 2
Player 5 -- Jersey number: 66, Rating: 9
MENU
u - Update player rating
a - Output players above a rating
r - Replace player
o - Output roster
q - Quit
Choose an option: a
Enter a rating:5
Player 1 -- Jersey number: 84, Rating: 7
Player 2 -- Jersey number: 23, Rating: 6
Player 5 -- Jersey number: 66, Rating: 9
MENU
u - Update player rating
a - Output players above a rating
r - Replace player
o - Output roster
q - Quit
Choose an option: r
Enter a jersey number: 4
Enter a new jersey number: 12
Enter a new rating for player:8
Error: Invalid Jersey Number...
Try Again...
MENU
u - Update player rating
a - Output players above a rating
r - Replace player
o - Output roster
q - Quit
Choose an option: q
