Java Converting do-while loop with while loop -

i implementing simple sorting class, , wondering how implement using while loop rather do-while loop.

the outer loop executed once each item in ‘names’ list. however, it’s do-while loop, executed @ least once. lead incorrect result if ‘names’ empty list. should replaced while loop.

sort class

public class sort {  public static arraylist<name> sort1(arraylist<name> names) {      arraylist<name> results;      results = new arraylist<name>();      int count = names.size();     {          name firstname = new name("zzz", "zzz");         (name name : names) {             if (name.getfirstname().compareto(firstname.getfirstname()) < 0                     || name.getfirstname().equals(firstname.getfirstname())                             && name.getsurname().compareto(firstname.getsurname()) < 0) {                 firstname = new name(name.getfirstname(), name.getsurname());             }         }          results.add(firstname);          names.remove(firstname);          count--;      } while (count > 0);      return results; }}} 

name class

class name {  string firstname; string surname;  public name() { }  public name(string firstname, string surname) {      this.firstname = firstname;     this.surname = surname; }  public string getfirstname() {     return firstname; }  public void setfirstname(string firstname) {     this.firstname = firstname; }  public string getsurname() {     return surname; }  public void setsurname(string surname) {     this.surname = surname; }  public string tostring() {     return firstname + " " + surname; }  public boolean equals(object other) {     string fname = ((name) other).firstname;     string sname = ((name) other).surname;     if (firstname.equals(fname) && surname.equals(sname)) {         return true;     } else {         return false;     } } 

public class sort {  private static void doiterate(list<name> names, list<name> results) {         name firstname = new name("zzz", "zzz");         (name name : names) {             if (name.getfirstname().compareto(firstname.getfirstname()) < 0                     || name.getfirstname().equals(firstname.getfirstname())                             && name.getsurname().compareto(firstname.getsurname()) < 0) {                 firstname = new name(name.getfirstname(), name.getsurname());             }         }          results.add(firstname);          names.remove(firstname); }  public static arraylist<name> sort1(arraylist<name> names) {      arraylist<name> results;      results = new arraylist<name>();      int count = names.size();     doiterate(names, results);     count--;     while (count > 0) {       doiterate(names, results);       count--;     }      return results; }}}