Odtnhj

I want to extend a class but it doesn't work.

Here is my code:

public class Hund 

 // Attribute
 private String name;
 private String color;
 private int age;

 // Konstruktoren:
 public Hund(String name, String color, int age) 
 this.name = name;
 this.color = color;
 this.age = age;

 public void ausgeben() 
 System.out.println("The dog´s race is " + name);
 System.out.println("His/Her color is " + color);
 System.out.println("His/Her age is " + age + " years");
 

 public void bellen() 
 System.out.println("Wuff Wuff");
 

 public static void main(String args) 
 Hund GermanShepherd = new Hund("GermanShepherd", "Black", 4);

 GermanShepherd.ausgeben();
 GermanShepherd.bellen();
 

I created a new class and when I type:

public class Dackel extends Hund 

I get the error: "Implicit super constructor Hund() is undefined for default constructor. Must define an explicit constructor."

What am I doing wrong?

Dackel needs a constructor, if you were using an IDE, Eclipse would have told you that.

So the solution would be:

public class Dackel extends Hund


 public Dackel(String name, String color, int age)
 
 super(name, color, age);
 

Another solution would be to add an empty constructor to the Hund class.

Another hint: I'm German too, but really, stick to one language. Don't name classes German and fields English. This is uttlery confusing. Rather be consistent.

Every java class has default constructor. If you implement parameterized constructor for a class the default constructor will not be available.

Here parameterized constructor is

 public Hund(String name, String color, int age) 
 this.name = name;
 this.color = color;
 this.age = age;

When you extend Dackel with Hund JVM expecting to call constructor of super class Hund.