/* package whatever; // don't place package name! */
 
import java.util.*;
import java.lang.*;
import java.io.*;
import java.time.* ;
import java.time.format.* ;
 
/* Name of the class has to be "Main" only if the class is public. */
class Ideone
{
	public static void main (String[] args) throws java.lang.Exception
	{
LocalDate ld = null ; 
 
String input = "2022/01/31" ;
DateTimeFormatter formatter = 
    DateTimeFormatter
        .ofPattern( "uuuu/MM/dd" )
        .withResolverStyle( ResolverStyle.STRICT ) ;  // Be strict: Reject 31st of February.
try {
	ld = LocalDate.parse( input , formatter ) ;
} catch ( DateTimeParseException e ) {
	System.out.println( e ) ;
}
System.out.println( ld ) ;
	}
}

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