Sorting in an array Object

I am new to java program. I would like to know how to do the sorting in an array object.

I have four fields [ Author, Date, BookTitle, Status, ] for storing the data. I would like to

sort as follows:

Author [ascending order]

Date[descending order]

BookTitle [ascending order]

Can anyone show me the example how to do that?

Thanks

MyDreamCar

The case as below:

Before Sorting , the array as follows:

String array [][] = {{"Ann", "2002-09-23", "Introdction to C Programming", "Available"},

{"Ann", "2001-11-30", "Introdction to Java Programming", "Available"},

{"Tom", "2004-09-08", "Introdction to Perl Programming", "Not Available"},

{"John", "2001-08-29", "Introdction to Visual Basic Programming", "Available"},

{"Ann", "2000-09-09", "ASP Programming", "Not Available"},

{"Tom", "2004-09-10", "Networking Programming", "Not Available"},

{"John", "2004-08-18", "C How to program", "Available"},

{"Howard", "2003-10-10", "Core Java Programming", "Available"},

{"Ann", "2002-09-23", "Pascal Programming", "Available"},

{"Billy", "2000-12-22", "Advanced C Programming ", "Not Available"}

};

Expected Sorting result as follows:

{"Ann", "2002-09-23", "Introdction to C Programming", "Available"},

{"Ann", "2002-09-23", "Pascal Programming", "Available"},

{"Ann", "2001-11-30", "Introdction to Java Programming", "Available"},

{"Ann", "2000-09-09", "ASP Programming", "Not Available"},

{"Billy", "2000-12-22", "Advanced C Programming ", "Not Available"}

{"Howard", "2003-10-10", "Core Java Programming", "Available"},

{"John", "2004-08-18", "C How to program", "Available"},

{"John", "2001-08-29", "Introdction to Visual Basic Programming", "Available"},

{"Tom", "2004-09-10", "Networking Programming", "Not Available"},

{"Tom", "2004-09-08", "Introdction to Perl Programming", "Not Available"},

[1991 byte] By [mydreamcar] at [2007-9-30 20:36:13]