Java OCA OCP Practice Question 2918

Question

Which of the following can fill in the blank correctly? (Choose all that apply.) 

ResultSet rs = stmt.executeQuery(sql); 
if (rs.next()) { 

} 

A.   String s = rs.getString(0);
B.   String s = rs.getString(1);
C.   String s = rs.getObject(0);
D.   String s = rs.getObject(1);
E.  Object s = rs.getObject(0);
F.  Object s = rs.getObject(1);



B, F.

Note

In a ResultSet, columns are indexed starting with 1, not 0.

Therefore, choices A, C, and E are incorrect.

There are methods to get the column as a String or Object.

However, choice D is incorrect because an Object cannot be assigned to a String without a cast.




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