/*
    Array1.java
    CIS 111
    David Klick
    11/05/07

    Demonstration of using arrays and passing arrays
    to methods.
*/

public class Array1 extends CIS111App {
    public static void main(String[] args) {
        int[] num = new int[5];
        clearConsole();

        initArray(num);
        println("Original array: ");
        displayArray(num);

        println("Maximum value in array is " + findMax(num));
        println("Minimum value in array is " + findMin(num));
        println("Sum of array elements is " + sumArray(num));

        sortArray(num);
        println("Original array: ");
        displayArray(num);

        clearArray(num);
        println("Cleared array: ");
        displayArray(num);
    }

    private static void clearArray(int[] a) {
        for (int i=0; i<a.length; i++) {
            a[i] = 0;
        }
    }

    private static void displayArray(int[] a) {
        for (int i=0; i<a.length; i++) {
            printf("%6d\n", a[i]);
        }
    }

    private static int findMax(int[] a) {
        int max = a[0];
        for (int i=1; i<a.length; i++) {
            if (a[i] > max) max = a[i];
        }
        return max;
    }

    private static int findMin(int[] a) {
        int min = a[0];
        for (int i=1; i<a.length; i++) {
            if (a[i] < min) min = a[i];
        }
        return min;
    }

    private static void initArray(int[] a) {
        for (int i=0; i<a.length; i++) {
            a[i] = random(-30,30);
        }
    }

    private static void sortArray(int[] a) {
        for (int i=0; i<a.length-1; i++) {
            for (int j=i+1; j<a.length; j++) {
                if (a[i] > a[j]) {
                    int tmp = a[i];
                    a[i] = a[j];
                    a[j] = tmp;
                }
            }
        }
    }

    private static int sumArray(int[] a) {
        int sum = 0;
        for (int i=0; i<a.length; i++) {
            sum = sum + a[i];
        }
        return sum;
    }
}