import java.sql.*;

public class BoolTest {

	public static void main(String args[]) throws Exception {
		Class.forName("org.postgresql.Driver");
		Connection conn = DriverManager.getConnection("jdbc:postgresql://localhost:5750/jurka","jurka","");

		Statement stmt = conn.createStatement();
		stmt.execute("CREATE TEMP TABLE tt (ans bool)");
		stmt.close();


		PreparedStatement pstmt = conn.prepareStatement("INSERT INTO tt (ans) VALUES (?)");
		pstmt.setObject(1, new Boolean(false));
		pstmt.executeUpdate();
		pstmt.setBoolean(1, false);
		pstmt.executeUpdate();
		pstmt.setObject(1, new Boolean(false), Types.BIT);
		pstmt.executeUpdate();
		pstmt.setObject(1, new Boolean(false), Types.BOOLEAN);
		pstmt.executeUpdate();
		pstmt.close();

		stmt = conn.createStatement();
		ResultSet rs = stmt.executeQuery("SELECT ans FROM tt");
		while (rs.next()) {
			System.out.println(rs.getBoolean(1));
		}
		rs.close();
		stmt.close();
		conn.close();
	}
}