Question

How to return an integer from function in Scala

Answer 1

object Main {
    def add(x:Int, y:Int) = x + y;

    def main(args: Array[String]): Unit = {
        print("x + y = " + add(30, 12));
    }
}



  
/*
run:
   
x + y = 42
   
*/

 

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Answer 2

object Main {
    def mul(x:Int) : Int = {       
        var n = 12
           
        return x * n
    }  

    def main(args: Array[String]): Unit = {
        print(mul(4));
    }
}



  
/*
run:
   
48
   
*/

 

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Answer 3

object Main {
    def f() : Int = {       
        var n = 12
           
        return 8 * n
    }  

    def main(args: Array[String]): Unit = {
        print(f());
    }
}



  
/*
run:
   
96
   
*/

 

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