public static int maxProduct(int[] nums) {

int maxLoc = nums[0];

int minLoc = nums[0];

int maxGlob = nums[0];

for (int i = 1; i < nums.length; i++){

if (nums[i] == 0) {

minLoc = 0;

maxLoc = 0;

maxGlob = Math.max(0, maxGlob);

}

else {

int temp = maxLoc;

maxLoc = Math.max(nums[i], Math.max(maxLoc * nums[i], minLoc * nums[i]));

minLoc = Math.min(nums[i], Math.min(temp * nums[i], minLoc * nums[i]));

maxGlob = Math.max(maxLoc, maxGlob);

}

}

return maxGlob;

}

public static void main(String[] args) {

int[] nums = {2,3,-2,4};

System.out.println(maxProduct(nums));

int[] nums1 = {-2,0,-1};

System.out.println(maxProduct(nums1));

int[] nums2 = {2, 3, -2, 4, -1};

System.out.println(maxProduct(nums2));

}