Q:

Scala program to create an abstract class with the final method

belongs to collection: Scala Abstract Classes Programs

YasminRadwan26
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2022-07-08
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Here, we will demonstrate the use of abstract class with the final method. An abstract class can contain a final method, but the final method cannot be overridden in the derived class.

To implement the abstract methods, we need to inherit the abstract class into a class.

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YasminRadwan26
2022-07-08
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Program/Source Code:

The source code to create an abstract class with the final method is given below. The given program is compiled and executed on the ubuntu 18.04 operating system successfully.

// Scala program to create an abstract class 
// with the final method

abstract class Demo1 {
  final def sayHi() {
    printf("Hiii\n");
  }
}

class Demo2 extends Demo1 {}

object Sample {
  def main(args: Array[String]) {
    var obj = new Demo2();

    obj.sayHi();
  }
}

Output:

Hiii

Explanation:

Here, we used an object-oriented approach to create the program. And, we created an object Sample.

Here, we created two classes Demo1 and Demo2. The Demo1 is an abstract class. It contains a final method sayHi(). A final method cannot be overridden in the derived class. And, we inherited the Demo1 class into the Demo2 class.

In the main() function, we created the object of the Demo2 class and called sayHi() method.

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