Scala program to create an abstract class with the non-abstract method

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YasminRadwan26

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2022-07-08

233

Here, we will demonstrate the use of abstract class with the non-abstract method. An abstract class can contain both abstract and non-abstract methods. 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 a non-abstract 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 a non-abstract method

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

}

class Demo2 extends Demo1 {
  def sayHello() {
    printf("Hello\n");
  }
}

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

    obj.sayHi();
    obj.sayHello();
  }
}

Output:

Hiii
Hello

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 contain a non-abstract method sayHi() and an abstract method sayHello().

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

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