Get the 2 highest speed from linkedlist?

Question

I have a linkedlist with Car object's. Now all these cars have a int speed value for their topspeed. My question goes : How do I get the 2 fastes cars from this linkedlist?

Answer 1

I made this test class and it worked just fine:
import java.util.*;
class ObjektTest
     LinkedList liste = new LinkedList();
     Sorter sorter=new Sorter();
     ObjektTest()
          Person p=new Person("Erol",25);
          liste.add(p);
          Person p2=new Person("Lars",32);
          liste.add(p2);
          Person p3=new Person("Frank",20);
          liste.add(p3);
          for(int i=0;i<liste.size();i++)
               System.out.println(liste.get(i));
          Collections.sort(liste,sorter);
          for(int i=0;i<liste.size();i++)
               System.out.println(liste.get(i));
     public static void main(String[] aslan)
          new ObjektTest();
class Person
     String navn;
     int alder;
     Person(String navn,int alder)
          this.navn=navn;
          this.alder=alder;
     public int getAge()
          return alder;
     public String toString()
          return navn+" "+alder;
class Sorter implements Comparator//sorter med st�rste alder f�rst
     public int compare(Object o1, Object o2)
          Person p1=(Person)o1;
          Person p2=(Person)o2;
if (p1.getAge() < p2.getAge())
               return 1;
     else if (p1.getAge() > p2.getAge())
          return -1;
          else return 0;
public boolean equals(Object obj)
          return super.equals(obj);
}