arrays-exercise 10, slide 29

package class170629;

import java.util.Scanner;

public class arrays10 {

    public static void main(String[] args) {
        /*
         * Exercise 10, slide 29
         * input : 5 numbers to an array
         * output: are the values in the array sorted in ascending order ?
         */

        // size of array
        final int SIZE = 5;

        // create a scanner
        Scanner s = new Scanner(System.in);

        // define an integer array
        int[] numbers = new int[SIZE];

        System.out.printf("Enter %d integer numbers:\n", numbers.length);
        // get data from user and save it in the array
        for (int i = 0; i < numbers.length; i += 1) {
            numbers[i] = s.nextInt();
        }

        s.close();

        // check numbers at the same position, if equal then print the position
        int i;

        // using for with if
        for (i = 1; i < numbers.length; i += 1) {
            if (numbers[i] <= numbers[i - 1]) {
                break;
            }

        }

        // you can also use for without if
        // for (i = 1; i < numbers.length && numbers[i] > numbers[i - 1]; i +=
        // 1) { }

        System.out.printf("array is %ssorted in ascending order.\n",
                i == numbers.length ? "" : "not ");
    }

}