Erroneous sym type What does this mean?

[Lynn Marciniak]

I have been working on this for days now, and can't figure out what I am doing wrong. I have to use the following for my method I am trying to call from main public static void sort(double num1, double num2, double num3)

// @author Lynn Marciniak
import java.util.*;

public class Assignment4_3 {
    
    public static void main(String[] args){
        //create Scanner 
        Scanner input = new Scanner(System.in);
    
        //prompt for the three numbers
        System.out.print("Enter the first number as a double: ");
        double num1 = input.nextDouble();
        System.out.print("Enter the second number as a double: ");
        double num2 = input.nextDouble();
        System.out.print("Enter the third number as a double: ");
        double num3 = input.nextDouble();
    
        //Sort method call
        sort(double num1, double num2, double num3);
     
    }
    //My own method doesn't work
    
    public static  void sort(double num1, double num2, double num3){       
        
        if ((num1 < num2) && (num1 < num3)) {        
            System.out.print("Numbers in ascending order are;  " + num1);

            if (num2 < num3)
                System.out.print(" " + num2 + " " + num3);
            else
                System.out.println(" " + num3 + " " + num2);
        }
        else 
            if ((num2 < num1) && (num2 < num3)){
                System.out.print("Numbers in ascending order are: " + num2);
    
                if (num1 < num3)
                    System.out.println(" " + num1 + " " + num3);
                else 
                    System.out.println( " " + num3 + " " + num1);
            }
            else
                if ((num3 < num1) && (num3 < num2)){
                    System.out.print("Numbers in ascending order are: " + num3 );
                    if (num1 < num2)
                        System.out.println(" " + num1 + " " + num2);
                    else 
                        System.out.println(" " + num2 + " " + num1);
                }
    } 
   
}

If I take out the method that I have to include, it runs just fine, so I know that I have issues with the way I am handling the method.

[Edit: added code tabs - MB]

[fred rosenberger]

when you CALL a method, you don't have to give it the parameter types. Change line 19 to this:

sort( num1, num2, num3);

[Jian Shen]

Hi,

The code looks fine except the sort method call:

//Sort method call
sort(double num1, double num2, double num3);

You need to declare variable type only when define a method. So the calling code should be:

//Sort method call
sort(num1, num2, num3);

[Lynn Marciniak]

Thank you! I can't believe it was so simple!

[fred rosenberger]

it's always simple if you know what it is...

Just mark this off as one more thing you've learned, and (hopefully) won't make again. I can't begin to tell you how long my list of mistakes like this I've made is.