我有这个学校作业,我有点困惑。
这就是它所说的:
“编写一个使用‘链接’技术进行散列的程序。程序将读取一个数组的长度,该数组将包含对将生成的每个链表的引用。此外,所有要存储的值都是阅读。程序应该有一个单独的函数用于在索引存在的地方进行散列。当程序生成链表时,将计算并打印出理论上的“负载因子”。整个数组应该很容易打印出来。”
我感到困惑的是,有关程序的部分将读取数组的长度,该数组将包含对将生成的每个链表的引用。是否可以生成多个链表?在这种情况下,你是怎么做到的?
这是我被告知要使用的类:
public class EnkelLenke {
private Node head = null;
private int numOfElements = 0;
public int getNum()
{
return numOfElements;
}
public Node getHead()
{
return head;
}
public void insertInFront(double value)
{
head = new Node (value, head);
++numOfElements;
}
public void insertInBack(double value)
{
if (head != null)
{
Node this = head;
while (this.next != null)
this = this.next;
this.next = new Node(value, null);
}
else
head = new Node(value, null);
++numOfElements;
}
public Node remove(Node n)
{
Node last = null;
Node this = head;
while (this != null && this != n)
{
last = this;
this = this.next;
}
if (this != null)
{
if (last != null)
last.next = this.next;
else
head = this.next;
this.next = null;
--numOfElements;
return this;
}
else
return null;
}
public Node findNr(int nr)
{
Node this = head;
if (nr < numOfElements)
{
for (int i = 0; i < nr; i++)
this = this.next;
return this;
}
else
return null;
}
public void deleteAll()
{
head = null;
numOfElements = 0;
}
public String printAllElements() {
String streng = new String();
Node this = head;
int i = 1;
while(this != null)
{
streng = streng + this.element + " ";
this = this.findNext();
i++;
if(i > 5)
{
i = 1;
streng = streng + "\n";
}
}
return streng;
}
public double getValueWithGivenNode (Node n)
{
Node this = head;
while (this != null && this != n)
{
this = this.next;
}
if (this == n)
return this.element;
else
return (Double) null;
}
}
public class Node {
double element;
Node next;
public Node(double e, Node n)
{
element = e;
next = n;
}
public double findElement()
{
return element;
}
public Node findNext()
{
return next;
}
}