Sample code blocks for Java Date to Timestamp convertion and rounding Bigdecimal values to display two decimal points.
package timestampDeciaml;
import java.util.*;
import java.text.*;
import java.sql.Timestamp;
import java.math.BigDecimal;
public class DateToTimestamp {
public DateToTimestamp() {
}
public static void main(String[] args) {
/*Converting a java Date to TimeStamp*/
try {
String str_date = “2011-07-02 14:51:26″;
DateFormat formatter;
Date date;
formatter = new SimpleDateFormat(“yyyy-MM-dd hh:mm:ss”);
date = (Date) formatter.parse(str_date);
System.out.println(“Today is ” + date.toString());
java.sql.Timestamp timeStampDate = new Timestamp(date.getTime());
System.out.println(“Today is ” + timeStampDate);
} catch (ParseException e) {
System.out.println(“Exception :” + e);
}
/*Different implementations of rounding off BigDecimal values
to display Two Decimal places*/
int decimalPlaces = 2;
BigDecimal bd = new BigDecimal(“123456789.7123456890″);
bd = bd.setScale(decimalPlaces, BigDecimal.ROUND_DOWN);
String output1 = bd.toString();
System.out.println(“output1 123456789.0123456890 ” + output1);
BigDecimal bd3 = new BigDecimal(“123456789.3″);
bd3 = bd3.setScale(decimalPlaces, BigDecimal.ROUND_DOWN);
String output2 = bd3.toString();
System.out.println(“output2 123456789.3 ” + output2);
BigDecimal bd2 = new BigDecimal(3.14159);
bd2 = bd2.setScale(2, BigDecimal.ROUND_HALF_UP);
String output3 = bd2.toString();
System.out.println(“output3 3.14159 ” + output3);
BigDecimal bd4 = new BigDecimal(3.1);
bd4 = bd4.setScale(2, BigDecimal.ROUND_HALF_UP);
String output4 = bd4.toString();
System.out.println(“output2 3.14159 ” + output4);
}
}
