判断数组是否包含此元素

package test;

public class Test015 {
    public void index(int[] arr, int param) {
        boolean flag = true;
        for (int i = 0; i < arr.length; i++)
            if (param == arr[i]) {
                System.out.println(i);
                flag = false;
                break;
            }
        if (flag) {
            System.out.println("此数组中不包含此元素");
        }
    }

    public static void main(String[] args) {
        int[] arr = new int[]{35, 5, 22, -98, 6, -76, 0};
        Test015 t = new Test015();
        t.index(arr, 22);
    }
}