JDBC Prepared Statement With ResultSet In Java Example

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import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.PreparedStatement;
import java.sql.ResultSet;
import java.sql.SQLException;

public class JavaJDBCPreparedStatementResultSet {

	public static void main(String a[]) {

		Connection connection = null;
		PreparedStatement preparedStatement = null;
		ResultSet resultSet = null;
		try {
			Class.forName("oracle.jdbc.driver.OracleDriver");
			connection = DriverManager.getConnection("jdbc:oracle:thin:@<hostname>:<port num>:<DB name>", "user",
					"password");
			String query = "SELECT * FROM Employee WHERE Empid=?";
			preparedStatement = connection.prepareStatement(query);
			preparedStatement.setInt(1, 1087);
			resultSet = preparedStatement.executeQuery();
			while (resultSet.next()) {
				System.out.println(resultSet.getString("name") + " -- " + resultSet.getInt("salary"));
			}
			resultSet.close();
			preparedStatement.setInt(1, 3453);
			resultSet = preparedStatement.executeQuery();
			while (resultSet.next()) {
				System.out.println(resultSet.getString("name") + " -- " + resultSet.getInt("salary"));
			}
		} catch (ClassNotFoundException e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
		} catch (SQLException e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
		} finally {
			try {
				if (resultSet != null)
					resultSet.close();
				if (preparedStatement != null)
					preparedStatement.close();
				if (connection != null)
					connection.close();
			} catch (Exception ex) {
			}
		}
	}
}
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