Scala program to implement multiple traits in a class

Program/Source Code:

The source code to implement multiple traits in a class is given below. The given program is compiled and executed on the ubuntu 18.04 operating system successfully.

// Scala program to implement multiple traits
// in a class

trait SampleTrait1 {
  def sayHello();

}

trait SampleTrait2 {
  def sayHi();
}

class Test extends SampleTrait1 with SampleTrait2 {
  def sayHello() {
    println("Hello world");
  }
  def sayHi() {
    println("Hiiiii");
  }

}

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

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

Output:

Hello world
Hiiiii

Explanation:

In the above program, we used an object-oriented approach to create the program. Here, we created two traits SampleTrait1, SampleTrait2. The Sampletrait1 contains an abstract method sayHello() and Sampletrait2 contains an abstract method sayHi(). Then we extend the Test and implement both methods.

Then we created a singleton object Sample and defined the main() function. The main() function is the entry point for the program.

In the main() function, we created the object of the Test class and called sayHello() and sayHi() method and printed messages on the console screen.