import java.util.ArrayList;
import java.util.Iterator;
import java.util.List;
import java.util.ListIterator;
import java.util.concurrent.CopyOnWriteArrayList;

public class DiGuiTest {
public static void main(String[] args) {
    List<OrgDto> list = new ArrayList<OrgDto>();
    OrgDto dto1 = new OrgDto();
    dto1.setOrgId(10l);
    dto1.setSupOrgId(3l);
    dto1.setOrgName("10部门");
    list.add(dto1);
    OrgDto dto2 = new OrgDto();
    dto2.setOrgId(12l);
    dto2.setSupOrgId(10l);
    dto2.setOrgName("12部门");
    list.add(dto2);
    OrgDto dto3 = new OrgDto();
    dto3.setOrgId(13l);
    dto3.setSupOrgId(12l);
    dto3.setOrgName("13部门");
    list.add(dto3);
    Long a = 3l;
    List<Long> supList = new CopyOnWriteArrayList<Long>();
    supList.add(a);
    List<String> nameList = new ArrayList<String>();
    Iterator<Long> iterator = supList.iterator();
    while (iterator.hasNext()) {
        Long s = Long.parseLong(iterator.next().toString());
        for (OrgDto o : list) {
            if (o.getOrgId().equals(s)) {
                nameList.add(o.getOrgName().trim());
            } else if (o.getSupOrgId().equals(s)) {
                nameList.add(o.getOrgName().trim());
                supList.add(o.getOrgId());
            }
        }
    }
    for (String n : nameList) {
        System.out.println(n);
    }
}