public static int maxNum(int[] array){
if(array == null) return -1;
if (array.length == 0) return -1;
int max = array[0];
for (int i = 1; i <array.length ; i++) {
if(max < array[i]){
max = array[i];
}
}
return max;
}
public static void main(String[] args) {
int[] array = {12,8,14,26,5,7,8};
int max = maxNum(array);
System.out.println(max);
}打印结果：
