millenniumcounter.java

来自「beginJsp2.0外文书籍源代码」· Java 代码 · 共 48 行

package com.wrox.utilities;

import java.util.*;
import java.text.SimpleDateFormat;

public class MillenniumCounter 
{
  private SimpleDateFormat dateFormat;
  private Calendar targetDate;

  public MillenniumCounter() 
  {
    dateFormat = new SimpleDateFormat("EEE, dd MMMM yyyy");

    targetDate = Calendar.getInstance();
    targetDate.set(targetDate.YEAR, 3000);
    targetDate.set(targetDate.MONTH, 0);
    targetDate.set(targetDate.DATE, 1);
    targetDate.set(targetDate.AM_PM, 0);
    targetDate.set(targetDate.HOUR, 0);
    targetDate.set(targetDate.MINUTE, 0);
    targetDate.set(targetDate.SECOND, 0);
  }

  public String getToday() 
  {
    return dateFormat.format(new Date());
  }

  public long getDays() 
  {
    Calendar now = Calendar.getInstance();
    if (now.after(targetDate)) 
      return 0;
    else 
    {
      long milliseconds = (targetDate.getTimeInMillis() 
                           - now.getTimeInMillis());
      long seconds = milliseconds / 1000;
      long minutes = seconds / 60;
      long hours = minutes / 60;
      long days = hours / 24;

      return days;
    }
  }
}