Added java solution for 11_Container With Most Water (#124)

Author: sahariardev

Algorithms/Medium/11_Container With Most Water/Solution.java

@@ -0,0 +1,25 @@
+class Solution {
+    public int maxArea(int[] height) {
+     int i = 0;
+     int j = height.length - 1;
+
+     int maxArea = Integer.MIN_VALUE; 
+
+     while(i < j) { 
+         int h = Math.min(height[i], height[j]);
+         int width = j - i;
+
+         maxArea = Math.max(maxArea, h*width);
+
+         if(height[i] > height[j]) {
+             j--;
+         } else {
+             i++;
+         }
+
+     }
+
+     return maxArea;
+
+    }
+}