done

import java.util.*;
public class java2 {
     static Scanner console = new Scanner(System.in);
    public static void main(String[]args)
    {


    int quantity,pc,total;
    double price = 0;


  System.out.println("Product code                 Price");
  System.out.println(" 1                          123.45");
  System.out.println(" 2                          450.95");
  System.out.println(" 3                          1200.50");
  System.out.println(" 4                          670.99");
  System.out.println(" 5                          999.90");
  System.out.println("Input Product code:");
   pc= console.nextInt();
   System.out.println("Input the Quantity:");
   quantity= console.nextInt();

switch(pc)
{
case 1: price=123.45;
break;
case 2: price=450.95;
break;
case 3: price=1200.50;
break;
case 4: price=670.99;
break;
case 5: price=999.90;
break;
default : System.out.println("Invalid Product code!");

}
total=  (int) (price * quantity);

System.out.println("Total:"+total);
}

}