Scala Comments

The scala comments are statements which are not executed by the compiler or interpreter. The comments can be used to provide information or explanation about the variable, method, class or any statement. It can also be used to hide program code details.

In scala, there are three types of comments

Single line comment
Multiline comment
Documentation comment

Scala Single Line Comment Example

Single line comment is used to comment single line of code.

// Example of single line comment.
object MainObject {
   def main(args: Array[String]) {
       var a = 1           // Here, a is a variable
       println(a)     
    }
}

Output:

Scala Multiline Comment

Multiline comment is used to comment multiple lines of code in the program.

// Example of multi line comment.
object MainObject {
   def main(args: Array[String]) {
       var a = 1           
       println(a)     
    }
    /*
    In the main method, we have created a variable named a
    and printed it
    */
}

Output:

Scala Documentation Comment Example

// Example of documentation comment.
object MainObject {
   def main(args: Array[String]) {
       var a = 1           
       println(a)     
    }
    /**
     *  In the main method, we have created a variable named a
     *  and printed it
     * 
     */
}

Output:

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