Java Number Format

long start=System.currentTimeMillis();
super.process();
long end=System.currentTimeMillis();
long total=(end-start)/1000;
java.text.DecimalFormat dc=new DecimalFormat();
dc.applyPattern("0.0");
String formated=dc.format(total);

more pattern is ###,###.00

Java Calculate process time

long start=System.currentTimeMillis();
tins.process();
long end=System.currentTimeMillis();
long total=(end-start)/1000; //in second

Java Date Format

Date d=new Date();
DateFormat dt = DateFormat.getDateInstance(DateFormat.SHORT);
String format=dt.format(date);

Code for Date Format
You can change format in

.MEDIUM Or .FULL