java - While loop with iteration -

i trying create while loop user has total of 3 tries enter valid number. i'm not understanding how system recognizes 3 invalid attempts have been made before displaying message. classes, variables, , scanner objects made. after 3 attempts, want "no more tries". have program written use user's input quantity if valid. if input 3 invalid attempts.  

updated code:  

int quantity = 0;

        // user's desired amount of lemonade cups         system.out.print("hello " + name + ". how many cups of lemonade can you? ");         quantity = keyboard.nextint(); // store amount of cups wanted          int attempts = 0;         int maxattempts = 3;         double subtotal = quantity * lemonadecost;         double totaltax = subtotal * 0.08;         double totalprice = subtotal + totaltax;          while (attempts < maxattempts) {             if (quantity < 1 || quantity >= 20) {                 system.out.println("that invalid amount, please try again");                 quantity = keyboard.nextint(); }               else {                  system.out.println("subtotal: " + defaultformat.format(subtotal));                  system.out.println("tax: " + defaultformat.format(totaltax));                  system.out.println("total: " + defaultformat.format(totalprice));               }              attempts++;                 if (attempts >= 3) {                     system.out.print ("no lemonade you");                     break;                 }             // ask user's payment method             scanner method = new scanner(system.in);             system.out.println("how pay? enter 'm'   money, 'c' credit or 'g' gold. ");             string payment = method.nextline();  

dxdy correct braces required making while() loop function.

once while loop has ended (either quantity between 1 , 20, or attempts > maxattempts), need have if statement following:

if (attempts > maxattempts) {   system.out.println("no more tries);   return -1; // or else break out of code } 

and continue on rest of code working quantity variable.