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  1. /* package whatever; // don't place package name! */
  2.  
  3. import java.util.*;
  4. import java.lang.*;
  5. import java.io.*;
  6. import java.text.SimpleDateFormat;
  7.  
  8. /* Name of the class has to be "Main" only if the class is public. */
  9. class Ideone
  10. {
  11. 	public static void main (String[] args) throws java.lang.Exception
  12. 	{
  13. 		// your code goes here
  14. 		String date = "2019-05-20";
  15.  
  16. 		String year = "", month = "", day = "";
  17.         String todayYear = "", todayMonth = "", todayDay = "";
  18.  
  19.         Date todayDate = new Date();
  20.         SimpleDateFormat formatter = new SimpleDateFormat("yyyy-MM-dd");
  21.         String today = formatter.format(todayDate);
  22.  
  23.         for(int i=0; i<date.length(); i++){
  24.         	if(date.charAt(i) == '-') continue;
  25.  
  26.             if(i<4) year += date.charAt(i);
  27.             else if(i>4 || i<7) month += date.charAt(i);
  28.             else if(i>7) day += date.charAt(i);
  29.         }
  30.  
  31.         for(int i=0; i<today.length(); i++){
  32.         	if(today.charAt(i) == '-') continue;
  33.  
  34.             if(i<4) todayYear += today.charAt(i);
  35.             else if(i>4 || i<7) todayMonth += today.charAt(i);
  36.             else if(i>7) todayDay += today.charAt(i);
  37.         }
  38.  
  39.         System.out.println(year+month+day);
  40.         System.out.println(todayYear+todayMonth+todayDay);
  41.  
  42.  
  43.         int paramYear = Integer.parseInt(year);
  44.         int paramMonth = Integer.parseInt(month);
  45.         int paramDay = Integer.parseInt(day);
  46.         int todayYearInt = Integer.parseInt(todayYear), todayMonthInt = Integer.parseInt(todayMonth), todayDayInt = Integer.parseInt(todayDay);
  47.  
  48. 		System.out.println(paramYear + " " + paramMonth + " " + paramDay);
  49.  
  50. 	}
  51. }
Runtime error #stdin #stdout #stderr 0.07s 2184192KB
comments (?)
stdin
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Standard input is empty
stdout
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20190520
20190526
stderr
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Exception in thread "main" java.lang.NumberFormatException: For input string: ""
	at java.lang.NumberFormatException.forInputString(NumberFormatException.java:65)
	at java.lang.Integer.parseInt(Integer.java:592)
	at java.lang.Integer.parseInt(Integer.java:615)
	at Ideone.main(Main.java:45)
https://ideone.com/coEFWa
language:
Java (HotSpot 12)
created:
4 years ago
visibility:
public

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