Main.java Source code

Introduction

Here is the source code for Main.java

Source

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

public class Main {
    public static void main(String[] argv) {
        System.out.println(getPreviousWorkingDay(LocalDate.now()));
    }

    /**
     * The methods calculates the previous working day. It only recognize Saturday
     * and Sunday as non -working days.
     * 
     * @param date
     *          Date as starting point for the calculation, cannot be null
     * @return The previous working day
     */
    public static LocalDate getPreviousWorkingDay(LocalDate date) {
        DayOfWeek dayOfWeek = DayOfWeek.of(date.get(ChronoField.DAY_OF_WEEK));
        switch (dayOfWeek) {
        case MONDAY:
            return date.minus(3, ChronoUnit.DAYS);
        case SUNDAY:
            return date.minus(2, ChronoUnit.DAYS);
        default:
            return date.minus(1, ChronoUnit.DAYS);

        }
    }

}