(Without testing, snippets from internet)
import java.util.Calendar;
int year = 2006;
int month = 0; //January
int date = 1;
Calendar cal = Calendar.getInstance();
//Clear all fields
cal.clear();
cal.set(Calendar.YEAR, year);
cal.set(Calendar.MONTH, month);
cal.set(Calendar.DATE, date);
//Create instance of java.util.Date
java.util.Date utilDate = cal.getTime();
Or
import java.text.ParseException;
import java.text.SimpleDateFormat;
int year = 2003;
int month = 12;
int day = 12;
String date = year + "/" + month + "/" + day;
java.util.Date utilDate = null;
try {
SimpleDateFormat formatter = new SimpleDateFormat("yyyy/MM/dd");
utilDate = formatter.parse(date);
System.out.println("utilDate:" + utilDate);
} catch (ParseException e) {
System.out.println(e.toString());
e.printStackTrace();
}