double a_double = 0;
Double a_Double = null;
BigDecimal a_BigDecimal = null;
long a_long = 0;
Long a_Long = null;
BigInteger a_BigInteger = null;
String a_String = null;
Timestamp a_Timestamp = null;
int rows = 0;
ResultSet rslt = null;
Statement stmt = null;
try {
stmt = conn.createStatement();
rslt = stmt.executeQuery(
"select to_char( NULL ), to_date( NULL ), " +
"to_number( NULL ) from sys.dual");
if (rslt.next()) {
rows++;
a_String = rslt.getString(1);
if (rslt.wasNull()) System.out.println("rslt.getString(1) was null");
System.out.println("a_String = " + a_String);
System.out.println(" ");
a_BigDecimal = rslt.getBigDecimal(2);
if (rslt.wasNull()) System.out.println("rslt.getBigDecimal(2) was null");
System.out.println("a_BigDecimal = " + a_BigDecimal);
System.out.println(" ");
a_double = rslt.getDouble(2);
if (rslt.wasNull()) System.out.println("rslt.getDouble(2) was null");
System.out.println("a_double = " + a_double);
System.out.println(" ");
a_Double = new Double(rslt.getDouble(2));
if (rslt.wasNull()) System.out.println("rslt.getDouble(2) was null");
System.out.println("a_Double = " + a_Double);
System.out.println(" ");
a_long = rslt.getLong(2);
if (rslt.wasNull()) System.out.println("rslt.getLong(2) was null");
System.out.println("a_long = " + a_long);
System.out.println(" ");
a_Long = new Long(rslt.getLong(2));
if (rslt.wasNull()) System.out.println("rslt.getLong(2) was null");
System.out.println("a_Long = " + a_Long);
System.out.println(" ");
a_Timestamp = rslt.getTimestamp(3);
if (rslt.wasNull()) System.out.println("rslt.getTimestamp(3) was null");
System.out.println("a_Timestamp = " + a_Timestamp);
}
}
catch (SQLException e) {
System.err.println(e.getMessage());
}
finally {
if (rslt != null) try { rslt.close(); } catch (SQLException ignore) { }
if (stmt != null) try { stmt.close(); } catch (SQLException ignore) { }
}
