10 Question 4:Suppose you are given some positive integers representing some columns. And the width of each column is 1,now write a java program that will calculate the maximum amount of fluid it can hold. Example 1: 2 1 Input: height = [0,1,0,2,1,0,1,3,2,1,2,1] Output: 6 Explanation: The above elevation map (black section) is represented by array [0,1,0,2,1,0,1,3,2,1,2,1]. In this case, 6 units of rain water (blue section) are being trapped. Example 2: Input: height = [4,2,0,3,2,5] Output: 9