How to check if ResultSet is empty in JDBC Java

'Exploring the ResultSet Interface' published in 'JDBC Recipes'

Maps the given Resultset column name to its ResultSet column index boolean, first() JDBC Moves the cursor to the first row in the result set Array

resultset That would work if you didn't have a forward-only data set But usually when beginners want to use a ResultSet twice, that's based on incomplete

resultset Table 1 JDBC ResultSet Methods Supported Returns, Signature, Implementation Notes void, afterLast() void, beforeFirst() void, beforeFirst()