package test2;
import java.text.SimpleDateFormat;
import java.util.Calendar;
import java.util.Date;
import java.util.GregorianCalendar;
public class test4 {
private Calendar c =null;
public test4(int year,int month,int date){
c = new GregorianCalendar();
c.set(Calendar.YEAR, year);
c.set(Calendar.MONTH,month);
c.set(Calendar.DATE, date);
}
public test4(int year,int month){
c = new GregorianCalendar();
c.set(Calendar.YEAR, year);
c.set(Calendar.MONTH, month);
c.set(Calendar.DATE, 1);
}
public String getStrByDate(Date date){
String fmt = "";
fmt = "yyyy-MM-dd";
SimpleDateFormat sdf = new SimpleDateFormat(fmt);
String dateStr = sdf.format(date);
return dateStr;
}
public String getStrByMonth(Date date){
String fmt = "";
fmt = "yyyy-MM";
SimpleDateFormat sdf = new SimpleDateFormat(fmt);
String dateStr = sdf.format(date);
return dateStr;
}
public String getNextDay(int days) {
c.add(Calendar.DATE,days*(-1));
return this.getStrByDate(c.getTime());
}
public String getNextMonth(int months) {
c.add(Calendar.MONTH,months*(-1));
return this.getStrByMonth(c.getTime());
}
/**
* @param args
*/
public static void main(String[] args) {
// TODO Auto-generated method stub
test4 cdtest = new test4(2015,2);
for(int i=0;i<12;i++){
System.out.println(cdtest.getNextMonth(1));
}
}
}