编写 java 程序，根据玩家对象数组中的玩家 id 检索玩家详细信息

Question

this is my code:

public class Player

    2 public class PlayerUtility {
  
    4   public Player findPlayerDetailsById(Player[] arr, int playerIdToSearch){
    
    7 ..
          
   18 return null;   
    2 public class Main {
    3   public static void main(String[] args) {
   ...
        
   12       PlayerUtility obj=new PlayerUtility();
        ..
   18           System.out.println(obj.findPlayerDetailsById(pObj,id));
        
   21   if(obj.findPlayerDetailsById(pObj,id)==null)
   22   {
   23       System.out.println("No player found");

It's giving the outputs as expected according to the test cases but there's one failed test case Fail 1 - Check the return type of findPlayerDetailsById method in PlayerUtility class(or)the findPlayerDetailsById method returns the null value what should i return instead?

Answer 1

First thing please remove return statement from main because main is of void type.

Second check whether array variable Obj is even initialized or not(or even you need to use Obj value which is not required)or you only need arr variable to complete operation

Third implement getPlayerName and getPhoneNumber method before calling them.

Fourth check this statement pObj.setPlayerId(id) it's incorrect because you cannot call method without using array index which will refer to an object.

Remove these basic error and edit problem with new issue you are facing if their is any

Answer 2

update: i was able to get rid of the last error by returning the array and not an empty object. Thank you for all the help!