6.15 Ch 5 Program: Soccer team roster (Java) This program will store roster and
ID: 3916817 • Letter: 6
Question
6.15 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:
Explanation / Answer
import java.util.Scanner;
class Main {
public static void main(String[] args) {
Scanner keyboard = new Scanner(System.in);
int[] jersey = new int[5];
int[] rating = new int[5];
int count = 0;
char choice = 'o';
// taking input of 5 members
for(count = 0; count<5; count++)
{
System.out.printf("Enter player %d's jersey number:", count+1);
jersey[count] = keyboard.nextInt();
System.out.printf("Enter player %d's rating:", count+1);
rating[count] = keyboard.nextInt();
}
while(true)
{
if(choice == 'u')
{
System.out.print(" Enter a jersey number: ");
int jnum = keyboard.nextInt();
// finding the index of that jersey
int ind = 0;
for(ind = 0; ind < count && jersey[ind] != jnum; ind++);
// taking rating
if(jersey[ind] == jnum)
{
System.out.print("Enter a new rating: ");
rating[ind] = keyboard.nextInt();
}
}
else if(choice == 'a')
{
// taking input of rating
System.out.print(" Enter a rating: ");
int above = keyboard.nextInt();
int track = 1;
System.out.println(" ABOVE");
// printing only if the rating is above that
for(int i=0; i<count; i++)
{
if(rating[i] > above)
System.out.printf("Player %d -- Jersey number: %d, Rating: %d ",track++,jersey[i],rating[i]);
}
}
else if(choice == 'r')
{
// taking jersey number
System.out.print(" Enter a jersey number: ");
int jnum = keyboard.nextInt();
int ind = 0;
// finding the index
for(ind = 0; ind < count && jersey[ind] != jnum; ind++);
if(jersey[ind] == jnum)
{
// taking input of other rating and number and updating
System.out.print("Enter a new jersey number: ");
jersey[ind] = keyboard.nextInt();
System.out.print("Enter a rating for the new player: ");
rating[ind] = keyboard.nextInt();
}
}
else if(choice == 'o')
{
// printing the roster
System.out.println(" ROSTER");
for(int i=0; i<count; i++)
{
System.out.printf("Player %d -- Jersey number: %d, Rating: %d ",i+1,jersey[i],rating[i]);
}
}
System.out.println(" MENU u - Update player rating a - Output players above a rating r - Replace player o - Output roster q - Quit");
choice = keyboard.next().charAt(0);
if(choice == 'q')
break;
}
}
}
/* SAMPLE OUTPUT
ROSTER
Player 1 -- Jersey number: 3, Rating: 4
Player 2 -- Jersey number: 5, Rating: 2
Player 3 -- Jersey number: 8, Rating: 4
Player 4 -- Jersey number: 9, Rating: 4
Player 5 -- Jersey number: 7, Rating: 9
MENU
u - Update player rating
a - Output players above a rating
r - Replace player
o - Output roster
q - Quit
u
Enter a jersey number: 3
Enter a new rating: 6
MENU
u - Update player rating
a - Output players above a rating
r - Replace player
o - Output roster
q - Quit
o
ROSTER
Player 1 -- Jersey number: 3, Rating: 6
Player 2 -- Jersey number: 5, Rating: 2
Player 3 -- Jersey number: 8, Rating: 4
Player 4 -- Jersey number: 9, Rating: 4
Player 5 -- Jersey number: 7, Rating: 9
MENU
u - Update player rating
a - Output players above a rating
r - Replace player
o - Output roster
q - Quit
a
Enter a rating: 4
ABOVE
Player 1 -- Jersey number: 3, Rating: 6
Player 2 -- Jersey number: 7, Rating: 9
MENU
u - Update player rating
a - Output players above a rating
r - Replace player
o - Output roster
q - Quit
r
Enter a jersey number: 7
Enter a new jersey number: 6
Enter a rating for the new player: 1
MENU
u - Update player rating
a - Output players above a rating
r - Replace player
o - Output roster
q - Quit
o
ROSTER
Player 1 -- Jersey number: 3, Rating: 6
Player 2 -- Jersey number: 5, Rating: 2
Player 3 -- Jersey number: 8, Rating: 4
Player 4 -- Jersey number: 9, Rating: 4
Player 5 -- Jersey number: 6, Rating: 1
MENU
u - Update player rating
a - Output players above a rating
r - Replace player
o - Output roster
q - Quit
q
*/
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