Why can't I print the content of a row in the ResultSet twice?

Question

An exception was thrown when I tried to print it twice like this:
while (rs.next()) {
System.out.println(rs.getString(1));
System.out.println(rs.getString(1));
}Why?

Answer 1

An exception was thrown when I tried to print it
twice like this:
while (rs.next()) {
System.out.println(rs.getString(1));
System.out.println(rs.getString(1));
}Why?The real question is: why would you want to do that? ResultSets shouldn't be printed like that. MVC separation says that printing is View, and ResultSet is persistence. Better to iteration through the ResultSet once, loading the data into an object or data structure, close the ResultSet in a finally block, and then pass the object or data structure for rendering (be that printing or JSP or Swing or whatever your View is).
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