Combining array lists to print results
Trying to combine elements from two different arrays (in this problem, attaching the right soccer player with their jersey number). So, result should look like:
Enter jersey number: 2
You have entered jersey number 2, player is "insert player"
Also, something when a number not in the array is 开发者_如何学运维listed "Jersey number not enlisted"
import java.util.*;
class ArrayExample
{
public static void main(String[] args)
{
//represent the first 5 football players for USA
[1] GK Matt Turner
[2] DF Sergiño Dest
[3] DF Walker Zimmerman
[4] MF Tyler Adams
[5] DF Antonee Robinson
//int [] arr = {1, 2, 3, 4, 5};
String[] player = {"Matt Turner", "Sergiño Dest", "Walker Zimmerman", "Tyler Adams", "Antonee Robinson"};
Scanner sc = new Scanner(System.in);
System.out.println("Enter jersey number");
int i = sc.nextInt();
System.out.println("You have entered jersey number " + i);
//System.out.println(arr[0]);
System.out.println(player[i-1]);
}
}
String[] player = {"Matt Turner", "Sergiño Dest", "Walker Zimmerman", "Tyler Adams", "Antonee Robinson"};
Scanner in = new Scanner(System.in);
System.out.println("Enter jersey number");
int i = in.nextInt();
System.out.println("You have entered jersey number " + i);
if( i < 1 || i > player.length) {
System.out.println("Jersey number not enlisted");
} else {
System.out.println(player[i-1]);
}
import java.util.*;
class ArrayExample
{
public static void main(String[] args)
{
//represent the first 5 football players for USA
//[1] GK Matt Turner
//[2] DF Sergiño Dest
//[3] DF Walker Zimmerman
//[4] MF Tyler Adams
//[5] DF Antonee Robinson
int arr [] = {1, 2, 3, 4, 5};
String player[] = {"Matt Turner", "Sergiño Dest", "Walker Zimmerman",
"Tyler Adams", "Antonee Robinson"};
Scanner sc = new Scanner(System.in);
System.out.println("Enter jersey number");
int i = sc.nextInt();
System.out.println("You have entered jersey number " + i);
System.out.println(player[i-1]);
}
}
Your question title is about combining lists but your problem space is much better represented as a map from jersey number to player than as an array or list:
public static void main(String[] args)
{
Map<Integer,String> players = Map.of(
1, "Matt Turner",
2, "Sergiño Dest",...);
...
System.out.println("You have entered jersey number " + i);
if (players.containsKey(i)) {
System.out.println(players.get(i));
} else {
System.out.println("There is no player with that jersey");
}
}
In most cases overloading the index of an array with meaning such as identifier is a mistake. In your case if there's a jersey missing from the team you'll end up having to represent it as a null
and then all your code will need to code with this possibility.
Given Java is an object oriented language, even better would be to use classes:
enum Position{GK, MF, ...}
record Player(String name, Position position, int jersey) { }
Set<Player> team;
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