223. Rectangle Area

 1     public int computeArea(int A, int B, int C, int D, int E, int F, int G, int H) {
 2         
 3         int areaOfSqrA = (C-A) * (D-B);
 4         int areaOfSqrB = (G-E) * (H-F);
 5        
 6         int left = Math.max(A, E);
 7         int right = Math.min(G, C);
 8         int bottom = Math.max(F, B);
 9         int top = Math.min(D, H);
10        
11         //If overlap
12         int overlap = 0;
13         if(right > left && top > bottom)
14             overlap = (right - left) * (top - bottom);
15        
16         return areaOfSqrA + areaOfSqrB - overlap;
17     }