CODEWITHSUNDEEP
javainheritance
Awen
Awen

Reputation: 11

Inheritance java "cannot find symbol"

We discussed about inheritance in java this morning but it seems that I have an error in my code and my professor could not help me because he is busy, can you just help my to point my error?

package inheritance;

class Inheritance {

  void accelerate()
  {
    System.out.println("Drive");
  }

  void turn()
  {
    System.out.println("Turn!");
  }
}


class n2wheels extends Inheritance {


  void fast()
  {
    System.out.println("Swift Vehicle");
  }

}


class n4wheels extends Inheritance {


  void normal()
  {
    System.out.println("Average Vehicle");
  }


}


class multiwheel extends Inheritance {


  void slow()
  {
    System.out.println("Heavy Vehicle");


  }


  public static void main(String[] args)
  {
    Inheritance try1 = new Inheritance();
    try1.normal();
  }
}

Upvotes: 0

Views: 454

Answers (3)

Mit Mehta
Mit Mehta

Reputation: 212

You are not able to call this method because it doesn't exist in Inheritance class and present in n4wheels class. I don't know what you are trying to achieve so I am providing you possible solutions below.

Solution 1: If you want to call normal() in Inheritance class only then declare it in the same class.

class Inheritance {

  void accelerate() {
    System.out.println("Drive");
  }

  void turn() {
    System.out.println("Turn!");
  }

  void normal() {
    // do something
  }
}

Solution 2: If you want to call normal() method of n4wheels class directly then:

n4wheels try1 = new n4wheels();
try1.normal();

Solution 3: If you want to perform polymorphism then, you have to declare normal() method in Inheritance class as mentioned in 'solution 1' and then,

Inheritance try1 = new n4wheels();
try1.normal();

Upvotes: 0

nano_nano
nano_nano

Reputation: 12524

there is no normal method in your Inheritance class.

do at least:

class Inheritance {

    void accelerate() {
        System.out.println("Drive");
    }

    void turn() {
        System.out.println("Turn!");
    }

    void normal(){}
}

or:

n4wheels try1 = new n4wheels();
try1.normal();

as a side node: please start class names uppercase. N4Wheels, MultiWheels etc...

Upvotes: 1

Aldeguer
Aldeguer

Reputation: 831

Normal() method does not exists in Inheritance class

Upvotes: 0

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