New, Improved Restaurant Program

Your program should look much like the following:

import java.io.*;
import java.util.Scanner;

class RestaurantBill
{
  public static void main (String[] args)  
  {
    Scanner scan = new Scanner( System.in );
    double basicCost;
    double tipPercent;

    System.out.print("Enter the basic cost: ");
    basicCost = scan.nextDouble();
    System.out.print("Enter the tip percentage: ");
    tipPercent = scan.nextDouble();

    System.out.println("basic cost: " +  basicCost + " total cost: " + 
         (basicCost + basicCost*0.06 + basicCost*tipPercent) );
  }
}

The println statement was changed to use the variable tipPercent. Without this change, the program would run, and would appear to work correctly, but would not calculate the correct result.