Java繼承：未定義方法

Question

public abstract class Pokemon{ 
private String _Name; 
private String _Status; 
private double _Hitpoint; 
private int _Level; 
private String _Type="General"; 
protected Pokemon(){ 
_Status="Alive"; 
_Hitpoint=50; 
_Level=5; 
} 

protected Pokemon(double Hitpoint, int Lvl){ 
_Status="Alive"; 
_Name="Pokemon"; 
_Hitpoint=Hitpoint; 
_Level=Lvl; 
} 

public String getStatus(){ 
return Status 
} 
public String getName(){ 
return _Name; 
} 

public double getHitpoint(){ 
return _Hitpoint; 
} 

public int getLevel(){ 
return _Level; 
} 

public abstract void makeNoise(); 

public abstract void dealDamage(); 
} 

以上是抽象父類。下面是子類：

public class Pikachu extends Pokemon{ 
String _Type="Electric Pokemon"; 
String _Name; 
public Pikachu(){ 
this("Pikachu",50,5); 
} 

public Pikachu(String Name,double _Hitpoint,int _Level){ 
super(_Hitpoint,_Level); 
_Name=Name; 
} 



public void makeNoise(){ 
    System.out.println("Pika Pika"); 
} 

public void dealDamage(){ 
    System.out.println(getName()+" uses Shockwave"); 
} 
public static void main(String args[]){ 
    Pikachu Pika=Pikachu(); 
    Pika.makeNoise(); 
    Pika.dealDamage(); 
} 
} 

當我試圖運行代碼，在該行發生錯誤：

Pikachu Pika=Pikachu(); 
Error: The method Pikachu() is undefined for the type Pikachu 

很抱歉，如果這個問題很業餘（我剛開始學習使用Java）。任何人都可以給我一個簡單的解釋，爲什麼我的皮卡丘是不確定的，而我以前實際上已經定義了皮卡丘方法？

謝謝

Answer 1

構造需要與new

Pikachu Pika = new Pikachu();

Answer 2

你需要創建皮卡丘的新實例調用，用new關鍵字。

Pikachu Pika = new Pikachu(); 

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