Sorting arrays

I have an multidimensional array of Strings that I need to sort.  What is the fastest sorting algorithm that I can use to sort based on one column and what is the code?
Who is Participating?

[Product update] Infrastructure Analysis Tool is now available with Business Accounts.Learn More

I wear a lot of hats...

"The solutions and answers provided on Experts Exchange have been extremely helpful to me over the last few years. I wear a lot of hats - Developer, Database Administrator, Help Desk, etc., so I know a lot of things but not a lot about one thing. Experts Exchange gives me answers from people who do know a lot about one thing, in a easy to use platform." -Todd S.

The one in the API. Collections.sort(List l, Comparator c)
sre23Author Commented:
ok, well in that case my question gets a little more complex.  I was hoping to just find a few methods that would do it and adjust them to fit my needs.  What I actually have is a DefaultTableModel with 10 columns and I need to sort this table on alphabetically on the 3rd column.  I looked in the API but I am a little confused on how to create a Comparator and List object.  Can you elaborate on that a little.  I've raised the points to 100 since my question has changed a little.
class MyTableModel extends DefaultTableModel implements Comparator {

         int sortColumn;

         public void sortColumn(int sortColumn) {
              this.sortColumn = sortColumn;

         public int compare(Object o1, Object o2)  {
              if (o1 == null) return -1;
              if (o2 == null) return 1;

              Vector vect1 = (Vector) o1;
              Vector vect2 = (Vector) o2;
              Comparable col1 = (Comparable) vect1.get(sortColumn);
              Comparable col2 = (Comparable) vect2.get(sortColumn);
              return col1.compareTo(col2);


Experts Exchange Solution brought to you by

Your issues matter to us.

Facing a tech roadblock? Get the help and guidance you need from experienced professionals who care. Ask your question anytime, anywhere, with no hassle.

Start your 7-day free trial
Starting with Angular 5

Learn the essential features and functions of the popular JavaScript framework for building mobile, desktop and web applications.

Here is code that will do it.  You have to worry about making sure table is not updated while sorting, handling class cast and null, if there is a chance of that happening.  For regular alphabetic sorting, you do not need a comparator.  Post if you need a sample comparator.

javax.swing.table.DefaultTableModel table = new javax.swing.table.DefaultTableModel(10,10);

//load data

//create array
int ln = table.getRowCount();
String[] test = new String[ln];

//load array
for (int i=0;i<ln;i++) {
      if (table.getValueAt(i,2) == null)
      else test[i]=(String)table.getValueAt(i,2);

java.util.Arrays.sort(test);  // no comparator required for String, built-in alphabetic comparator.
      // can use non-casesensitive comparator etc.

// lets see
for (int i=0;i<test.length; i++) System.out.println(test[i]);

// good, set it

for (int i=0;i<test.length; i++) table.setValueAt(test[i],i,2);
sre23Author Commented:
CEHJ, in your example how is the sort started? and what is dataVector?  And I assume that "this" can be replaced by the name of my DefaultTableModel?
sre23Author Commented:
dyanet, your example looks as though it just sorts the 3rd column.  I need to sort my entire table ON the 3rd column.  I can't just reorder one column otherwise the whole table will be changed.  Each row needs to stay intact.
dataVector is a protected field of DTM:

>>how is the sort started?

By calling sortColumn on the model. Just merge the code with your model
sre23Author Commented:
Thanks again CEHJ
It's more than this solution.Get answers and train to solve all your tech problems - anytime, anywhere.Try it for free Edge Out The Competitionfor your dream job with proven skills and certifications.Get started today Stand Outas the employee with proven skills.Start learning today for free Move Your Career Forwardwith certification training in the latest technologies.Start your trial today

From novice to tech pro — start learning today.