Gets formatted time : Date Format « Data Type « Java

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Java » Data Type » Date FormatScreenshots 
Gets formatted time
    
import java.util.Calendar;
import java.util.Date;

public class Util{
    public final static long DAY = 24 * 3600 * 1000;

  public final static int YEAR_MASK = (1 << Calendar.YEAR);
  public final static int MONTH_MASK = (1 << Calendar.MONTH);
  public final static int DAY_MASK = (1 << Calendar.DAY_OF_MONTH);
  public final static int HOUR_MASK = (1 << Calendar.HOUR);
  public final static int HOUR_OF_DAY_MASK = (1 << Calendar.HOUR_OF_DAY);
  public final static int MINUTE_MASK = (1 << Calendar.MINUTE);
  public final static int SECOND_MASK = (1 << Calendar.SECOND);
  public final static int MILLISECOND_MASK = (1 << Calendar.MILLISECOND);
  public final static int AM_PM_MASK = (1 << Calendar.AM_PM);


  /**
    * Gets formatted time
    * 
    * @param time time in ms since 01/01/70
    * @param symbols if true, inserts symbols
    * @param fields <code>Calendar.MONTH</code>,
    *               <code>Calendar.DAY</code>,
    *               <code>Calendar.YEAR</code>,
    *               <code>Calendar.HOUR</code>,
    *               <code>Calendar.HOUR_OF_DAY</code>,
    *               <code>Calendar.MINUTE</code>,
    *               <code>Calendar.SECOND</code>,
    *               <code>Calendar.MILLISECOND</code>,
    *               <code>Calendar.AM_PM</code>
    * 
    * @returns formatted time
  */
  public static String formatTime(long time, boolean symbols, int fields)
  {
    StringBuffer sb = new StringBuffer();
    Calendar calendar = Calendar.getInstance();    
    String year;
    int hour;

        calendar.setTime(new Date(time));

    if ((fields & MONTH_MASK) != 0)
    {
      sb.append(twoDigit(calendar.get(Calendar.MONTH)+1));
    }

    if ((fields & DAY_MASK) != 0)
    {
      if (symbols) sb.append("/");
      sb.append(twoDigit(calendar.get(Calendar.DAY_OF_MONTH)));
    }

    if ((fields & YEAR_MASK) != 0)
    {
      if (symbols) sb.append("/");

      //get last two digits of year
      year = Integer.toString(calendar.get(Calendar.YEAR));
      sb.append(year.substring(year.length()-2));
    }

    if ((fields & HOUR_MASK) != 0 || (fields & HOUR_OF_DAY_MASK) != 0)
    {
      if ((fields & HOUR_MASK) != 0)
        hour = calendar.get(Calendar.HOUR);
      else if ((fields & HOUR_OF_DAY_MASK) != 0)
        hour = calendar.get(Calendar.HOUR_OF_DAY);
      else
        hour = 0;

      if (hour == 0) hour = 12;
      sb.append(twoDigit(hour));
    }

    if ((fields & MINUTE_MASK) != 0)
    {
      if (symbols) sb.append(":");
      sb.append(twoDigit(calendar.get(Calendar.MINUTE)));
    }

    if ((fields & SECOND_MASK) != 0)
    {
      if (symbols) sb.append(":");
      sb.append(twoDigit(calendar.get(Calendar.SECOND)));
    }

    if ((fields & MILLISECOND_MASK) != 0)
    {
      if (symbols) sb.append(".");
      sb.append(threeDigit(calendar.get(Calendar.MILLISECOND)));
    }

    if ((fields & AM_PM_MASK) != 0)
    {
      sb.append(calendar.get(Calendar.AM_PM) == Calendar.AM ? "A":"P");
    }

    return sb.toString();
  }
    private static String twoDigit(int value) {
        if (value < 10) {
            return "0" + value;
        } else {
      //get last two digits
      String str = Integer.toString(value);
            return str.substring(str.length() - 2);
        }
    }

    private static String threeDigit(int value) {
        if (value < 10) {
            return "00" + value;
        } else if (value < 100) {
            return "0" + value;
        } else {
            return "" + value;
        }
    }
}

   
    
    
    
  
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