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Scala program to demonstrate the 'public' access modifier

Here, we are going to demonstrate the 'public' access modifier in Scala programming language.
Submitted by Nidhi, on June 23, 2021

Problem Solution:

Here, we will create a class with a public data member. To create a public data member, there is no need to specified any keyword. By default, the members of the class are public. The public members of the class can be accessed outside the class.

Program/Source Code:

The source code to demonstrate the public access modifier is given below. The given program is compiled and executed on the ubuntu 18.04 operating system successfully.

// Scala program to demonstrate the 
// "public" access modifier

class Demo {
  // Default access specifier is public.
  var num: Int = 10
  def printNum() {
    printf("Num: %d\n", num);
  }
}

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

    obj.num = 20;

    obj.printNum();
  }
}

Output:

Num: 20

Explanation:

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

Here, we created a class Demo. The Demo class contains a public member num, which is initialized with 10. And, we created a printNum() method to print the value of num on the console screen.

Then we defined the main() function. The main() function is the entry point for the program.

In the main() function, we created an object of the Demo class and changed the value of public data member num by 20, And called printNum() method using the created object and print the value of private member num on the console screen.

Scala Classes & Objects Programs »


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