Java ResultSet.getTimestamp() attaches millisecond to output

Question

I have a table timestamptest with a single column timestamp of type timestamp without time zone .

I inserted a value to this table :
insert into timestamptest values('2015-09-08 13:11:11')

The timestamp does not contain any millisecond value.
On selecting this data in pgAdmin, it is displayed same as above.

But when I fetch this data using jdbc connection, the value displayed is with milliseconds.

    Class.forName("org.postgresql.Driver");
    Connection lConnection = null;
    lConnection = DriverManager.getConnection(
       "jdbc:postgresql://localhost:5432/postgres","postgres", "Password@123");
    String lQuery = "select * from timestamptest";
    Statement lStatement = lConnection.createStatement();
    ResultSet lResultSet = lStatement.executeQuery(lQuery);
    while(lResultSet.next()) {
        System.out.println(lResultSet.getTimestamp(1));
    }

Output : 2015-09-08 13:11:11.0

The desired output is 2015-09-08 13:11:11

It can be achieved by using SimpleDateFormat :
new SimpleDateFormat("yyyy-MM-dd HH:mm:ss").format(lResultSet.getTimestamp(1).getTime())

Can it be possible without using SimpleDateFormat? Is there any other way by which the result set itself gives me in the desired format?

What I need is that the statement lResultSet.getTimestamp(1)
directly gives me the output 2015-09-08 13:11:11 .

Answer 1

Its not possible. Since ResultSet.getTimestamp(1) return class that extends java.sql.TimeStamp . Returning class based on Database driver. And also we cant change the toString implementation of that.

Answer 2

Yes you can - but you're not going to like it.

class MyTimestamp extends Timestamp {

    public MyTimestamp(long time) {
        super(time);
    }

    public MyTimestamp(Timestamp ts) {
        this(ts.getTime());
    }

    @Override
    public String toString() {
        String s = super.toString();
        return s.substring(0, s.lastIndexOf("."));
    }
}

public void test() {
    System.out.println("Hello");
    Timestamp t = new Timestamp(System.currentTimeMillis());
    System.out.println(t);
    System.out.println(new MyTimestamp(t));

}