Problem With Quicksorting a Vector

Hi there!
I tried to write an extended Vector which can perform a quicksort of itself.
Unfortunately, after the quicksort, everything int his Vector seems "damaged" - although I get the right Strings out of it, the don't seem to be internally right. ANyway, I'll post my code here and hope anyone can tell me what is wrong with it ;-)
public class SortingVector extends java.util.Vector {
     public SortingVector() {
          super();
     public SortingVector(int i, int j) {
          super(i, j);
     public void sortStrings() {
          quickSortStrings(0, this.size() - 1);
     private void quickSortStrings(int l, int r) {
          if (l < r) {
               int r2 = partitionStrings(l, r);
               quickSortStrings(l, r2);
               quickSortStrings(r2 + 1, r);
     private void exchange(int m, int n) {
          Object o1 = this.elementAt(m);
          this.set(m, this.elementAt(n));
          this.set(n, o1);
     private int partitionStrings(int m, int n) {
          String x = ((String) this.elementAt(m)).toLowerCase(); // Pivot-Element
          int j = n + 1;
          int i = m - 1;
          while (true) {
               j--;
               while (checklarger(j, x)) {
                    j--;
               i++;
               while (checksmaller(i, x)) {
                    i++;
               if (i < j)
                    exchange(i, j);
               else
                    return j;
     private boolean checklarger(int j, String x) {
          int count = 0;
          String element = ((String) this.elementAt(j)).toLowerCase();
          while ((element.charAt(count) == x.charAt(count))
               && (count < element.length() - 1)
               && (count < x.length() - 1)) {
               count++;
          if (element.charAt(count) > x.charAt(count)) {
               return true;
          return false;
     private boolean checksmaller(int j, String x) {
          int count = 0;
          String element = ((String) this.elementAt(j)).toLowerCase();
          while ((element.charAt(count) == x.charAt(count))
               && (count < element.length() - 1)
               && (count < x.length() - 1)) {
               count++;
          if (element.charAt(count) < x.charAt(count)) {
               return true;
          return false;

Unfortunately, after the quicksort, everything int his
Vector seems "damaged" - although I get the right
Strings out of it, the don't seem to be internally
right.I also think you should use the built-in sort but what do you mean by "damaged"?

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  • Why does Bridge always lose track of the Favorites folders I put into it?

    (Latest version of Bridge) I haven't used Bridge in a while because of this problem. When you click on one of your Favorites folders in the panel on the far left side, the folder comes up with a question mark and it can't find anything! Why does this