Adding x days to a date in java

import java.util.GregorianCalendar;
import java.util.Calendar;


public class TestDate {


public TestDate() {

        run()
}

public void run()
{
GregorianCalendar gc = new GregorianCalendar();

// Todays date

System.out.println(gc.get(Calendar.DATE) + "/" +
(gc.get(Calendar.MONTH)+ 1) + "/" +
gc.get(Calendar.YEAR));

// add two days ago

gc.add(Calendar.DATE, 2);

System.out.println(gc.get(Calendar.DATE) + "/" +
(gc.get(Calendar.MONTH) + 1) + "/" +
gc.get(Calendar.YEAR));

// add another 30 Days

gc.add(Calendar.DATE, 30);
System.out.println(gc.get(Calendar.DATE) + "/" +
(gc.get(Calendar.MONTH) + 1) + "/" +
gc.get(Calendar.YEAR));


}