Date handler to format dates

package net.westsoftware.handler;
import java.text.*;
import java.util.*;
public class DateHandler{ 
     private String timePattern;
     private String longTimePattern;
     private String datePattern;
     private String longDatePattern;
     private SimpleDateFormat df;
 
     public DateHandler(){
          this.timePattern = "HH:mm";
          this.longTimePattern ="HH:mm:ss";
          this.datePattern="dd.MM.yy";
          this.longDatePattern="dd.MM.yy' - 'HH:mm";
     }
 
     public String getDate(long val){
          df = new SimpleDateFormat(this.datePattern);
          Calendar cal = Calendar.getInstance();
          cal.setTimeInMillis(val);
          return df.format(cal.getTime());
     }
 
     public String getLongDate(long val){
          if(val<=0){
               return "never";
          }else{
               df = new SimpleDateFormat(this.longDatePattern);
               Calendar cal = Calendar.getInstance();
               cal.setTimeInMillis(val);
               return df.format(cal.getTime());
          }
     }
 
     public String getTime(long val){
          df = new SimpleDateFormat(this.timePattern);
          Calendar cal = Calendar.getInstance();
          cal.setTimeInMillis(val);
          return df.format(cal.getTime());
     }
 
     public String getLongTime(long val){
          df = new SimpleDateFormat(this.longTimePattern);
          Calendar cal = Calendar.getInstance();
          cal.setTimeInMillis(val);
          return df.format(cal.getTime());
     }
 }