键盘输入年月日，处理输出下一天（月底、年底、闰年）

package test1;

import java.text.SimpleDateFormat;
import java.util.Calendar;
import java.util.Date;
import java.util.Scanner;
import java.util.Vector;

public class test {

public static void main(String args[])throws Exception{

Scanner sc = new Scanner(System.in);
String date = sc.next();
String[] date1 = date.split("-");
Vector v = new Vector<>();
for(int i=0;i v.add(Integer.parseInt(date1[i]));
}
int year = v.get(0);
int month = v.get(1);
int day = v.get(2);

System.out.println("没运算前"+year+" "+month+" "+day);
if(month==1||month==3||month==5||month==7||month==8||month==10||month==12){
if(month==12&&day==31){
year = year+1;
month = 1;
day = 1;
return;
}else if(day==31){
month = month+1;
day = 1;
return;
}else {
day = day+1;
}

}else{

if((year%4==0&&year%100!=0)||year%400==0){

if(month==2&&day==29){
month = month+1;
day = 1;
}else if(day==30){
month = month+1;
day = 1;
return;
}else{
day = day+1;
}

}else{
if(day==30){
month = month+1;
day = 1;
return;
}else if(month==2&&day==28){
month = month+1;
day = 1;
}else{
day = day+1;
}
}
}
System.out.println(year+" "+month+" "+day);
}
}