import java.util.Scanner;

/** 
 * This class contains methods that accept parameters.
 */
public class ParamMethod {
  /**
   * main simply will call our method
   */
  public static void main(String[] args)   {
    System.out.println("Hello from main (before method call)");
    Scanner sc = new Scanner(System.in);
    int num = sc.nextInt();
    displayInt(num);
    System.out.println("In main, returned from method displayInt.");
    System.out.println("Answer to 98*64 is: " + multiply(98,64));
    // or I can assign the return value to a variable
    int val2=98, val1=64;
    int answer = multiply(val2, val1);
  } 
  /**
   * displayInt displays the value of the parameter to the screen
   * @param num the number to display to the screen
   */
  public static void displayInt(int num)   {
    System.out.println(num);
  }
  /**
   * multiply -- multiplies the two parameters
   * @param val1 first operand
   * @param val2 second operand
   * @return val1 times val2
   */
  public static int multiply(int val1, int val2)   {
    // a local variable has scope in this method
    int product = val1*val2;
    return product;
  }
}