I need to compare two worksheets with Apache POI. Is there an easy way to do this, for instance a worksheet compare function, or must I compare each cell?
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I need to compare two worksheets with Apache POI. Is there an easy way to do this, for instance a worksheet compare function, or must I compare each cell?
Try iterating through all the cells and calculating a running hash or something like that. You run it twice, once for each worksheet and if the hash is the same – the worksheets are the same. AFAIK, there is no out-of-the-box method doing that.
I believe this is a better approach than doing a compare on a cell-to-cell basis since you’ll be having only one worksheet opened at once (as opposed to two worksheets in the cell-by-cell approach).