(JAVA CODING, MINOR ERROR)

import java.util.Scanner;

public class Homework

{

public static void main(String[] args)

{

System.out.println("+++++++++++++++++++++++++++++++");

System.out.println("Welcome to Online Order Program!");

System.out.println("+++++++++++++++++++++++++++++++");

String order="no";

int choice;

String type ="no";

String meat;

String food = "";

double withoutMeat=7.5;

double withBeef=25.5;

double withPork=17.5;

double totalCost=0;

double cost=0;

double totalAmount=0;

double delivery=0;

double deliveryCharge=5;

double tips=0;

Scanner a=new Scanner(System.in);

System.out.println(" 1. Hamburger");

System.out.println(" 2. Pizza");

System.out.println(" 3. Noodle");

System.out.println(" 4. Salad");

System.out.println(" 5. Sandwich");

System.out.println(" 6. Exit");

System.out.println("+++++++++++++++++++++++++++++++");

System.out.println("");

System.out.print("Please Enter your choice (1-6): ");

choice=a.nextInt();

while(choice<1 && choice>6) {

System.out.print(" That is a wrong input. Please try again! ");

choice=a.nextInt();

switch(choice)

{

case 1:

food = "Hamburger";

System.out.println("");

System.out.println("Your choice is: " + food);

break;

case 2:

food = "Pizza";

System.out.println("");

System.out.println("Your choice is: "+ food);

break;

case 3:

food = "Noodle";

System.out.println("");

System.out.println("Your choice is: " + food);

break;

case 4:

food = "Salad";

System.out.println("");

System.out.println("Your choice is: " + food);

break;

case 5:

food = "Sandwich";

System.out.println("");

System.out.println("Your choice is: " + food);

break;

case 6:

System.out.println("");

System.out.println("Your choice is: Finish the Order!");

System.out.println("");

System.out.println("No need to pay the delivery fee.");

System.out.println("");

System.out.println("The total price is $0.0.");

System.out.println("");

System.out.println("Thank you for ordering!");

System.exit(0);

break;

}

}

System.out.print("Would you like to have some meat on your " + food + "? ");

type=a.next();

if(type.equalsIgnoreCase("yes"))

{

System.out.println("");

System.out.print("Beef or Pork? ");

meat = a.next();

if(meat.equalsIgnoreCase("beef"))

cost = withBeef;

else if(meat.equalsIgnoreCase("pork"))

cost = withPork;

else

cost = 0;

}

totalCost+=cost;

System.out.println("");

System.out.print("Would you like to have more food from the menu? ");

order=a.next();

if(order.equalsIgnoreCase("no"))

{

System.out.println("");

System.out.print("The total price is less than $50. You need to pay the delivery fee $5.");

System.out.println("");

}

if(totalCost<50)

{

delivery=deliveryCharge;

}

System.out.println("");

System.out.print("Would you like to tip? Please enter the amount (if no, enter 0): ");

tips=a.nextDouble();

totalAmount=totalCost+delivery+tips;

System.out.println("");

System.out.println("The total price is $"+totalAmount);

System.out.println("");

System.out.println("Thank you for ordering!");

a.close();

}

}

Above code works fine, however:

while(choice<1 && choice>6) {

System.out.print(" That is a wrong input. Please try again! ");

choice=a.nextInt();

part does not work. When the user puts any number other than 1-6, the program should say that "that is a wrong input. Please try again!", and it should go at the beginning of the question and asks the user again: Please enter your choice.