Question

What is the problem with the code snippet below? public class Test { public static void main(String[] args) { System.out.println(cost(10, 4)); } public static void cost(int price, int reps) { for (int i = 0; i < reps; i++) { System.out.print(price); } } }

Answer 1

Answer:

The problem in the following snippet is that the function "cost" returns the void and it cannot used as the expression in the print statement

Explanation:

public class Test

{

    public static void main(String[] args)

    {

          System.out.println(cost(10, 4));

     }

     public static void cost(int price, int reps)

     {

           for (int i = 0; i < reps; i++)  

           {

                   System.out.print(price);                

           }  

     }

}

Output:

Main.java:4: error: 'void' type not allowed here

        System.out.println(cost(10, 4));

                               ^

1 error

In the following code the void type is not allowed in the function "cost".