0479. Second Max of Array

public class Solution {
    /**
     * @param nums: An integer array
     * @return: The second max number in the array.
     */
    public int secondMax(int[] nums) {
        if(nums.length==1){
            return nums[0];
        }
        int max = 0; int smax = 0;
        if(nums[0] < nums[1]){
            max = nums[1];
            smax = nums[0];
        }
        else{
            max = nums[0];
            smax = nums[1];
        }
        if(nums.length == 2){
            return smax;
        }
        for(int i = 2; i<nums.length; i++){
            if(nums[i]>=max){
                smax = max;
                max = nums[i];
            }
        }
        return smax;
    }
}