public class ArrayExamples {

    public static void printArray(int[] array) {
        for (int i = 0; i < array.length; ++i)
            System.out.print(array[i] + " ");
        System.out.println();
    }

    public static int max(int[] array) {
        int max = array[0];
        for (int i = 1; i < array.length; ++i)
            if (max < array[i])
                max = array[i];
        return max;
    }

    public static int maxIndex(int[] array) {
        int maxIndex = 0;
        for (int i = 1; i < array.length; ++i)
            if (array[maxIndex] < array[i])
                maxIndex = i;
        return maxIndex;
    }

    public static int search(int[] array, int value) {
        for (int i = 0; i < array.length; ++i)
            if (array[i] == value)
                return i;
        return -1;
    }

    public static int binarySearch(int[] array, int value) {
        int low = 0, high = array.length - 1;
        while (high >= low) {
            int mid = (high + low) / 2;
            if (array[mid] == value)
                return mid;
            else if (array[mid] < value)
                low = mid + 1;
            else
                high = mid - 1;
        }
        return -1;
    }

    public static void main(String[] args) {

        int numbers1[] = { 10, 5, 7, 2, 9, 12, 11 };
        int numbers2[] = { 2, 5, 7, 9, 10, 11, 12 };

        System.out.println(max(numbers1));
        System.out.println(maxIndex(numbers1));
        System.out.println(search(numbers1, 7));
        System.out.println(search(numbers1, 8));
        System.out.println(search(numbers2, 7));
        System.out.println(search(numbers2, 8));
    }

}