import java.util.*;
public class TestCollection{
    public static void main(String[] args){
        Collection c = new Collection();
        c.add(new Name("悟空","1"));
        c.add(new Name("八戒","2"));
        c.add(new Name("沙僧","3"));
        Iterator i= c.iterator();//核心（红色）
        i.next();
        i.remove();
        while(i.hasNext()){
            Name n = (Name)i.next();
            System.out.print(n.getFirstname()+"  ");
        }
    }
}

class Name{
    private String firstname;
    private String secondname;
    public Name(String fname,String sname){
        firstname = fname;
        secondname = sname;
    }
    public String getFirstname(){
        return firstname;
    }
    public String getSecondname(){
        return secondname;
    }

}