MainClass.java Source code

Introduction

Here is the source code for MainClass.java

Source

import java.text.SimpleDateFormat;
import java.util.Calendar;
import java.util.Date;

public class MainClass {

    public static int diff(Date date1, Date date2) {
        Calendar c1 = Calendar.getInstance();
        Calendar c2 = Calendar.getInstance();

        c1.setTime(date1);
        c2.setTime(date2);
        int diffDay = 0;

        if (c1.before(c2)) {
            diffDay = countDiffDay(c1, c2);
        } else {
            diffDay = countDiffDay(c2, c1);
        }

        return diffDay;
    }

    public static void DateDiff(Date date1, Date date2) {
        int diffDay = diff(date1, date2);
        System.out.println("Different Day : " + diffDay);
    }

    public static int countDiffDay(Calendar c1, Calendar c2) {
        int returnInt = 0;
        while (!c1.after(c2)) {
            c1.add(Calendar.DAY_OF_MONTH, 1);
            returnInt++;
        }

        if (returnInt > 0) {
            returnInt = returnInt - 1;
        }

        return (returnInt);
    }

    public static Date makeDate(String dateString) throws Exception {
        SimpleDateFormat formatter = new SimpleDateFormat("MM/dd/yyyy");
        return formatter.parse(dateString);
    }

    public static void main(String argv[]) throws Exception {
        Calendar cc1 = Calendar.getInstance();
        Calendar cc2 = Calendar.getInstance();
        cc1.add(Calendar.DAY_OF_MONTH, 10);

        DateDiff(cc1.getTime(), cc2.getTime());

        java.util.Date d1 = makeDate("10/10/2000");
        java.util.Date d2 = makeDate("10/18/2000");
        DateDiff(d1, d2);

        java.util.Date d3 = makeDate("1/1/2000");
        java.util.Date d4 = makeDate("12/31/2000");
        int diff34 = diff(d3, d4);
        System.out.println("diff34=" + diff34);
    }

}