Certainly! Below is a Java code to determine the due date for a book loan from the library, considering a borrowing period of 5 days from the current date.

import java.time.LocalDate;

public class BookLoanDueDateCalculator {
    public static void main(String[] args) {
        // Get the current date
        LocalDate currentDate = LocalDate.now();

        // Add 5 days to the current date to calculate the due date
        LocalDate dueDate = currentDate.plusDays(5);

        System.out.println("The book loan due date is: " + dueDate);
    }
}

In this code, we are using the java.time.LocalDate class to work with dates. We obtain the current date using LocalDate.now(), and then add 5 days to it using the plusDays() method to calculate the due date for the book loan.

For the loan due date, let's assume that the "borrowing period" is a number of days that is passed as a parameter to the method calculating the due date.

Here is a simple Java program that takes this borrowing period as an input and prints out the due date:

import java.time.LocalDate;

public class LoanDueDateCalculator {
    public static void main(String[] args) {
        // Assume borrowing period as 10 days
        int borrowingPeriod = 10;
        
        // Compute and print the due date
        printDueDate(borrowingPeriod);
    }

    public static void printDueDate(int days) {
        // Get the current date
        LocalDate currentDate = LocalDate.now();

        // Add borrowing period days to the current date to compute the due date
        LocalDate dueDate = currentDate.plusDays(days);

        System.out.println("The loan due date is: " + dueDate);
    }
}

This code gets the current date and adds the defined borrowing period to it to calculate the loan due date. Modify the borrowingPeriod variable in the main method to change the length of the borrowing period.

Sure, here's a simple Java code snippet for this requirement:

import java.time.LocalDate;

public class LibraryDueDate {
    
    public static void main(String[] args) {
        determineDueDate(5);
    }

    public static void determineDueDate(int borrowPeriod) {
        // Get today's date
        LocalDate today = LocalDate.now();
      
        // Add the borrow period to current date
        LocalDate dueDate = today.plusDays(borrowPeriod);
      
        // Display the due date
        System.out.println("The book loan due date is: " + dueDate);
    }
}

In this program, we have a function determineDueDate(int borrowPeriod) to calculate and display the due date. It gets the current date using LocalDate.now(), then it adds the borrow period to this date using plusDays() function to calculate the due date. Finally, it prints out due date. In the main() method, we call this function with borrow period as 5.

In Java, we can compare two dates using compareTo(), isBefore(), and isAfter() methods provided by the java.time.LocalDate class.

The compareTo() method provides a numerical difference between two dates, where 0 means dates are identical, less than 0 means the date is before the other one, and greater than 0 means the date is after the other one.

The isBefore() and isAfter() methods respectively check if a date is before or after another date.

Here is a simple Java code example for comparing two dates:

import java.time.LocalDate;

public class DateComparison {
    public static void main(String[] args) {
        LocalDate date1 = LocalDate.of(2022, 1, 1);
        LocalDate date2 = LocalDate.of(2022, 1, 2);
        
        // compare using compareTo
        if (date1.compareTo(date2) > 0) {
            System.out.println("date1 is after date2");
        } else if (date1.compareTo(date2) < 0) {
            System.out.println("date1 is before date2");
        } else {
            System.out.printlndate1 is equal to date2");
        }
        
        // compare using isBefore and isAfter
        if (date1.isBefore(date2)) {
            System.out.println("date1 is before date2");
        } 
        if (date1.isAfter(date2)) {
            System.out.println("date1 is after date2");
        }
    }
}

This code will output:

date1 is before date2
date1 is before date2

This indicates that date1 is found to be before date2 using both comparison methods.