Question

How to use function in Scala

Answer 1

object O {
    def function(): Unit = {       
          println("function()")  
    }  
    def main(args: Array[String]): Unit = {
       function()        
    }
}
     
      
      
      
/*
run:
      
function()
 
*/

 

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Answer 2

object O {
    def function() = {       
          var n = 346
          n  
    }  
    def main(args: Array[String]): Unit = {
        var result = function()
        
        println(result) 
    }
}
     
      
      
      
/*
run:
      
346
 
*/

 

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Answer 3

val add = (x: Int, y: Int) => x + y

println(add(11, 3))



  
/*
run:
   
14
   
*/

 

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