Sunday 14 June 2015

Flow Control 4: for

public class ForLoopDemo {
        /* In addition to the while and do-while loops.
         * The Java language also provides the for loop.
         * This is used to iterate through a range of values.
         */
        public static void main(String[] args) {
                // Count to 5 with a basic for loop.
                for (int A = 0; A <= 5; A++){
                        System.out.println("A = " + A);
                }

                /* So the code above executes for as long as the
                 * value of A is less than or equal to 5.
                 *
                 * The next example will work it's way through
                 * an array. This is called an enhanced for loop.
                 */
                int[] B = {6,7,8,9,10};
               
                for (int item : B) {
                        System.out.println("B = " + item);
                }

                // We can also do the same for strings.
                String[] months = {"January","February","March","April","May","June",
                        "July","August","September","October","November","December"};

                for (String item : months) {
                        System.out.println("The month is " + item);
                }
        }
}

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