Static method in Scala

Sure! In Scala, static methods are called "singleton methods" and they can be defined using the object keyword. Here's an example:

object MyObject {
  def myMethod(): Unit = {
    println("Hello, world!")
  }
}

In this example, we define a singleton object MyObject with a single method called myMethod. This method doesn't take any arguments and simply prints out the string "Hello, world!" to the console.

Singleton methods, like regular instance methods, can take arguments and can return values. Here's an example of a singleton method that takes a string argument and returns a boolean value:

object MyObject {
  def isVowel(c: Char): Boolean = {
    val vowels = Set('a', 'e', 'i', 'o', 'u')
    vowels.contains(c.toLower)
  }
}

In this example, we define a singleton method called isVowel that takes a single character argument c. The method returns a boolean value indicating whether c is a vowel (ignoring case). The implementation uses a Set of vowels and the contains method to check whether c is in the set.

To call a singleton method, you simply prefix it with the name of the singleton object, like this:

MyObject.myMethod() // prints "Hello, world!"
MyObject.isVowel('a') // returns true
MyObject.isVowel('b') // returns false