quicksort ultraaaaaaaa

public class ListTest {
  private final int SIZE = 10;
  int v1,v2;
  public ListTest(){
    List<Integer> l = new List<Integer>();
    for (int i=1;i<=SIZE ;i++ ) {
      l.append((int)(Math.random()*10000));

    }
    l.toFirst();
    for (int a = 0;a<SIZE ;a++ ) {
       System.out.println(a+ ": "+l.getContent());
      l.next();
    } // end of for
    qsort(l,0,SIZE-1);
    System.out.println("---------------------------------");
    l.toFirst();
    for (int a = 0;a<SIZE ;a++ ) {
       System.out.println(a+ ": "+l.getContent());
      l.next();
    } // end of for
  }

  public void qsort(List<Integer> F, int u, int o){
    int l = u, r = o;
    if (o>u) {
      //int p = F[(u+o)/2];
      int p = findP(F,u,o);

      while (l <= r) {
        //while (l<o && F[l]<p)++l;
        //while (r> u && F[r]>p) --r;
        while (l<o && findFl(F,l)<p)++l;
        while (r> u && findFr(F,r)>p) --r;
        if (l<=r) {
          swap(F,l,r);
          ++l;
          --r;
        } // end of if
      } // end of while
      if (u<r) qsort(F,u,r);
      if (l<o) qsort(F,l,o);
    } // end of if


  }


  public int findP(List<Integer> l,int u,int o){
    int pZ = (u+o)/2;
    int pP = 0;
    l.toFirst();
    for (int a = 0;a<pZ ;a++ ) {
      pP = l.getContent();
      l.next();
    } // end of for
    return pP;

  }

  public int findFl(List<Integer> f,int l){
    int pL = 0;
    f.toFirst();
    for (int a = 0;a<l ;a++ ) {
      pL = f.getContent();
      f.next();
    } // end of for
    return pL;

  }


  public int findFr(List<Integer> f,int r){
    int pR = 0;
    f.toFirst();
    for (int a = 0;a<r ;a++ ) {
      pR = f.getContent();
      f.next();
    } // end of for
    return pR;

  }

  public void swap(List<Integer> F, int l, int  r ){
    int sR = findFr(F,r);
    int sL = findFl(F,l);
    F.toFirst();
    for (int a = 0;a<r-1 ;a++ ) {
      F.next();
    } // end of for
    F.setContent(sL);

    F.toFirst();
    for (int a = 0;a<l-1 ;a++ ) {
      F.next();
    } // end of for
    F.setContent(sR);

  }



  public static void main(String[] args) {
    new ListTest();
  }
}