Java - Can milliseconds be removed from the displayed time?

Question

The time in the database is of DateTime type
Getting the time

public Timestamp getDatetime() {
        return new Timestamp(System.currentTimeMillis());
    }

Can you remove it? It’s so ugly

Answer 1

It seems that when Timestamp is converted to String, the toString method of Timestamp is directly called.
The easiest way is to find the display place and change String str = timestamp.toString() similar code to

String str = timestamp.toString();
str = str.substring(0, str.length() - 4);

Answer 2

Use SimpleDateFormat to convert Timestamp to String type.

public Timestamp getDatetime() {
    SimpleDateFormat df = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
    Timestamp now = new Timestamp(System.currentTimeMillis());
    String str = df.format(now);
    
    return str;
}