/* package whatever; // don't place package name! */
 
import java.util.*;
import java.lang.*;
import java.io.*;
 
import java.time.* ;
import java.time.temporal.* ;
import java.time.format.* ;
 
import java.math.BigDecimal;
import java.math.MathContext;
 
/* 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 start = myResultSet.getObject( … , LocalDate.class ) ;  // Retrieve a `LocalDate` from database using JDBC 4.2 and later.
        LocalDate start = LocalDate.of( 2018 , Month.JANUARY , 23 );
        LocalDate stop = start.plusDays( 101 );
 
        Period p = Period.between( start , stop );
        long months = p.toTotalMonths();
        int days = p.getDays();
 
        BigDecimal bdDays = new BigDecimal( days );
        BigDecimal bdMaximumDaysInMonth = new BigDecimal( 31 );
        BigDecimal fractionalMonth = bdDays.divide( bdMaximumDaysInMonth , MathContext.DECIMAL32 );
        BigDecimal bd = new BigDecimal( months ).add( fractionalMonth );
 
        double d = bd.round( MathContext.DECIMAL32 ).doubleValue();
 
        System.out.println( "From: " + start + " to: " + stop + " = " + bd + " months, using BigDecimal. As a double: " + d );
        System.out.println( "p.toString(): " + p );
 
 
	}
}

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