Java錯誤：類PaintballPlayer中的方法recordShot不能應用於給定的類型;

Question

當我編譯我的代碼，我得到這個錯誤：

「PaintballPlayerTest.java:19：錯誤：類PaintballPlayer方法recordShot不能應用於給定類型; sheldon.recordShot（0）; ^ 要求：沒有參數 found：int 原因：實際和正式參數列表的長度不同「

這是相當令人沮喪的，我希望如果有人在這裏能夠幫助我。代碼如下....

礦：

import java.util.*; 

public class PaintballPlayer 
{ 
private String firstName, middleName, lastName; 
private String secFirst, secLast; 
private int id; 
private int count; 
private static int totalPlayers; 
private int playerID; 
private int players; 
private int shots; 
private static int shotsFired; 


public PaintballPlayer(String first, String middle, String last) 
{ 
    count = 0; 
    id = totalPlayers++; 
    players = count++; 
    shots = count++; 
    firstName = first; 
    middleName = middle; 
    lastName = last; 

} 

public PaintballPlayer(String f, String l) 
{ 
    this (f,"",l); 
    id = count++; 

} 


    public PaintballPlayer() 
{ 
totalPlayers++; 
    } 


    public static int getTotalPlayers() 
{ 
return totalPlayers; 
} 

public int recordShot() 
{ 
    return count; 
} 

public String toString() 
{ 
    String name; 
    String n; 
    name = firstName + " " + middleName + " " + lastName; 

    return name; 

} 


public int getPlayerID() 
{ 
    playerID = count; 
    return playerID; 
} 

} 

測試代碼：

public class PaintballPlayerTest 
{ 

public static void main (String [] args) 
{ 
//Part 1 check constructor & toString --(make sure ID is working too) 
PaintballPlayer sheldon = new PaintballPlayer ("Sheldon", "Lee", "Cooper"); 
PaintballPlayer leonard = new PaintballPlayer ("Leonard", "Hofstadter"); 
PaintballPlayer amy = new PaintballPlayer ("Amy", "Farrah", "Fowler"); 

System.out.println(sheldon); 
System.out.println(leonard); 

//Part 2 test getTotalPlayer --should be 3 
System.out.println("The team has this many players " + PaintballPlayer.getTotalPlayers()); 

//Part 3 test recordShot 
sheldon.recordShot(0); 
sheldon.recordShot(1); 
leonard.recordShot(0); 
leonard.recordShot(0); 
sheldon.recordShot(0); 
sheldon.recordShot(1); 
leonard.recordShot(2); 
} 

我的問題就出在區域標記部分3.我感謝所有幫助我得到。

Answer 1

required: no arguments found: int reason: actual and formal argument lists differ in length"

異常消息非常清楚。

您在PaintballPlayer

public int recordShot() 
{ 
    return count; 
} 

有recordShot()沒有參數，但在PaintballPlayerTest

sheldon.recordShot(0); 

與int參數調用要麼你需要同時呼籲recordShot()

改變 recordShot()到 recordShot(int cnt)（或）刪除傳遞價值