I'm trying to use while loops to print out the lettuce of a sandwich after the user types in an integer (The integer indicates how many pieces of lettuce the user desires).

For example, if the user types in 3, I want the while loop to print the following:

(_________)

~~~~~~~~~

~~~~~~~~~

~~~~~~~~~

(_________)

And if the user typed in 0, I want no lettuce to appear.

so far my code looks like this...

Scanner keyboard= new Scanner(System.in); //Ask how much of the toppings the user wants (reject negative numbers) int lettuce; do { System.out.println("How many layers of lettuce do you want?"); lettuce = keyboard.nextInt(); }while(lettuce < 0); //print the bun System.out.println("(___________)");

//this while loop should repeat as many times as the number stored in variable lettuce int line2 = 0; while( /* to do */) { // print a line of lettuce symbols like ~~~~~~~~~~~ System.out.println("~~~~~~~~~~~"); // add one to variable line line2 = line2 + 1; }