Question

I want to use

import java.sql.ResultSet;
import java.sql.SQLException;
import java.sql.Statement;

.
.
.


 try (Statement stmt = connection.createStatement()) {

               try (ResultSet rset = stmt.executeQuery(url)) {
                    while (rset.next()) { 
                    System.out.println (rset.getString(1)); 
                        }
                }
           }

in jdk 6. But it says that this is not supported. What can I do?

Answer 1

That’s try-with-resource which is a new feature in Java SE 7. In Java SE 6 (recently had a life extension into next year, but I wouldn’t write new code for it):

Statement stmt = connection.createStatement() {
try {
    ResultSet rset = stmt.executeQuery(url)
    try {
        while (rset.next()) { 
            System.out.println (rset.getString(1)); 
        }
    } finally {
        rset.close();
    }
} finally {
    stmt.close();
}

You can use the Execute Around idiom to factor out to repetitive bits.