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I need a Java implementation of table-like data structure where I could dynamically insert or delete rows and columns. I need to get data from any row or column very fast and with no overhead in selecting row over column or vice versa.
Does anyone know libraries where such data structure is already implemented?
You might be able to use the DefaultTableModel. It was intended to be used with a JTable, but there is no reason it can’t be used alone. You would need to add methods to retrieve the data for a full row or column.