<Java>日付間の日数、週数を取得

import java.time.LocalDate;
import java.time.temporal.ChronoUnit;

public class Main {
    public static void main(String[] args) {
        var date1 = LocalDate.of(1992, 1, 1);
        var date2 = LocalDate.of(2021, 1, 7);
        
        var days = ChronoUnit.DAYS.between(date1, date2);
        System.out.println(days);
        
        var weeks = ChronoUnit.WEEKS.between(date1, date2);
        System.out.println(weeks);
    }
}

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