Rectangle Area

public class Solution {
    public int computeArea(int A, int B, int C, int D, int E, int F, int G, int H) {
        int left = Math.max(A, E);
        int right = Math.min(C, G);
        int bottom = Math.max(B, F);
        int top = Math.min(D, H);
        
        int overlap = 0;
        if(left < right && bottom < top) {
            overlap = (right-left)*(top-bottom);
        }
        int area1 = (C-A)*(D-B);
        int area2 = (G-E)*(H-F);
        return area1 + area2 - overlap;
    }
}