loop, with break and continue

this example from a Well House Consultants training course
More on this [link]

This example is described in the following article(s):
• Java Programming Fundamentals - [link]

Source code: Glenda.java Module: J050

public class Glenda {

/*
A for loop repeats a block of code, given a starting action, a test
to be made each time around, and a stepping action between each time
around - usuaully, that's setting a starting value, stepping up one
at a time, until a top value. ((A while loop offers more flexibility,
but with more statements needed in your Java))

You can go back to the top of a loop and move on to the next
iteration with "continue" and you can get out of a loop with no
further action from it using a "break".

You'll often want to use a variable to build up results during the
running of a loop in exactly the same way that you would keep a
mental note of the total so far as you added up a column of numbers
by hand (does anyone still do that?). You can see that done in this
example with the variables "healthmonths" which is counting the
number of non-zero inputs, and "nveggies" which is maintaining a
running total. It's conventional to use a variable to build up the
total, then the same variable within the following code to calculate
with the final result - there's no need to copy it from one variable
to another.
*/

public static void main (String [] args) {
   int nveggies = 0;
   int healthymonths = 0;
   for (int month=1; month<=12; month++) {
        System.out.print("Month ");
        System.out.print(month);
        System.out.print(": How many carrots? ");

        int roots = (int) WellHouseInput.readNumber();
        if (roots < 0) break; // negative no; exit loop
        if (roots == 0) {
                System.out.println("UNHEALTHY!");
                continue; // go back to start of loop
                          // (but move on to next incr)
                }
        nveggies += roots;
        healthymonths ++;
        }
   System.out.print("You have eaten ");
   System.out.print(nveggies);
   System.out.println(" carrots this year");
   System.out.print("Healthy month count: ");
   System.out.println(healthymonths);
   }
}

/* ------------- Sample Output

Dorothy-2:java grahamellis$ java Glenda
Month 1: How many carrots? 4
Month 2: How many carrots? 5
Month 3: How many carrots? 4
Month 4: How many carrots? 0
UNHEALTHY!
Month 5: How many carrots? 0
UNHEALTHY!
Month 6: How many carrots? 4
Month 7: How many carrots? 3
Month 8: How many carrots? -1
You have eaten 20 carrots this year
Healthy month count: 5
Dorothy-2:java grahamellis$

*/

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