[Java>Original]Useful Date Utility(Utility to Convert Date to String, Convert String to Date)

I created useful Useful Date Utility including some functions, utility to convert Date to String and convert String to Date easily.

Original Source Code

• http://taapps-sourcecode-libraries.googlegroups.com/web/Dat.java
  

Converter from Date object to String easily

• Description
  This function is a converter from Date object to String.This function works like ORACLE PL/SQL's to_char function.
  Dat.convertDateToStr method has 2 arguments, one is a Date format you want to convert, other is a Data format String object like "yyyy/MM/dd".
  
• Sample
  Output Date object to String changed format like "2007/12/31 12:00:00".
  This function works like ORACLE PL/SQL's to_date function.
  

     java.util.Date testDate=new java.util.Date();
  .......
  System.out.println("Date Output:"+Dat.convertDateToStr(testDate,"yyyy/MM/dd HH:mm:ss"));
  

Converter from String object to Date easily

• Description
  This function is a converter from String object to Date object.This function works like ORACLE PL/SQL's to_date function.
  Dat.convertStrToDate method has 2 arguments, one is a String object including date, other is a Date format String.
  
• Sample
  

     String testDateStr="2007/12/31";
   ....
   java.util.Date convertedDate=Dat.convertStrToDate(testDateStr,"yyyy/MM/dd");

Get the long value between 2 Date objects.

• Description
  You sometimes need to get long value between 2 Date objects(for example, you need to get execution time when debugging the program and checking performance).
  Dat.getDateDiff method has 3 arguments and returns the difference long value between 2 Date object. one argument is a first Date object, second argument is a Date object, third argument is a boolean type argument to convert the result long value to absolute value.
  
• Sample
  

     java.util.Date date1=Dat.convertStrToDate("2007/12/31","yyyy/MM/dd");
    ..........
    java.util.Date date2=Dat.convertStrToDate("1973/12/31","yyyy/MM/dd");
    ..........
    long dateDiff=Dat.getDateDiff(date1,date2,false);