How to add Business hours to Date considering not adding weekends ? - Java

Question

I want to add certain number of hours to date, ignoring the weekends

For example,

(Friday 18:00) + 48 = (Tuseday 18:00) (Saturday and Sunday are ignored)

Answer 1

Please refer the below code, see if that helps you.

public static Date getTaskEndTime(Date startDate, int hours) {
    // calculate the end time by adding the hours ignoring the weekends
    Calendar endCal = Calendar.getInstance();
    endCal.setTime(startDate);

    for (int i = 0; i < hours; hours = hours - 8) {
        if (!(endCal.get(Calendar.DAY_OF_WEEK) == 1 || endCal.get(Calendar.DAY_OF_WEEK) == 7)) {
            endCal.add(Calendar.DAY_OF_MONTH, 1);
        } else {
            endCal.add(Calendar.DAY_OF_MONTH, 1);
            hours = hours + 8;
        }
    }
    return endCal.getTime();
}