数组获取最大值:

class Hello2 {
    public static void main(String[] args) {
        int[] arr = {11,12,13,14,15};
        int max = getMax(arr);
        System.out.println("max =" + max);
        
    }
    public static int getMax(int[] arr) {
        int max = arr[0];
        for (int i = 1;i < arr.length ;i++ )
        {
            if (max < arr[i])
            {
                max = arr[i];
            }
        }
        return max;
    }

}

结果: