QueueLinked.java

//Vrsta povezana s kazalci
 
public class QueueLinked extends ListLinked implements Queue {
  public QueueLinked() {
    super() ;
  }
  public Object front() throws Underflow {
     if (empty())
       throw new Underflow() ;
     else
       return retrieve(first()) ;
  }
  public void enqueue(Object x) throws Overflow {
      insert(x) ;
  }
  public void dequeue() throws Underflow {
    if (empty())
      throw new Underflow() ;
    else
      delete(first()) ;
  }
}