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Java Solution for LeetCode algorithm problems, continually updating
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223\. Rectangle Area
Medium
Given the coordinates of two **rectilinear** rectangles in a 2D plane, return _the total area covered by the two rectangles_.
The first rectangle is defined by its **bottom-left** corner `(ax1, ay1)` and its **top-right** corner `(ax2, ay2)`.
The second rectangle is defined by its **bottom-left** corner `(bx1, by1)` and its **top-right** corner `(bx2, by2)`.
**Example 1:**
![Rectangle Area](https://assets.leetcode.com/uploads/2021/05/08/rectangle-plane.png)
**Input:** ax1 = -3, ay1 = 0, ax2 = 3, ay2 = 4, bx1 = 0, by1 = -1, bx2 = 9, by2 = 2
**Output:** 45
**Example 2:**
**Input:** ax1 = -2, ay1 = -2, ax2 = 2, ay2 = 2, bx1 = -2, by1 = -2, bx2 = 2, by2 = 2
**Output:** 16
**Constraints:**
* -104 <= ax1, ay1, ax2, ay2, bx1, by1, bx2, by2 <= 104