Java 8实现任意参数的单链表
作者：因吉
这篇文章主要为大家详细介绍了Java 8实现任意参数的单链表，文中示例代码介绍的非常详细，具有一定的参考价值，感兴趣的小伙伴们可以参考一下
本文实例为大家分享了Java 8实现任意参数的单链表，供大家参考，具体内容如下
1、实现功能
1）add()：链表末尾添加元素；
2）pop()：移除链表尾部元素；
3）insert()：指定索引处添加元素；
4）delete()：指定索引处删除元素；
5）getSize()：获取链表当前长度；
6）display()：展示链表当前元素。
2、代码
package DataStructure;
/**
* @author: Inki
* @email: inki.yinji@qq.com
* @create: 2020 1024
* @last_modify: 2020 1025
*/
public class MySingleLinkedList <AnyType> {
/**
* Only used to store the head node.
*/
private SingleNode<AnyType> head = new SingleNode(new Object());
/**
* The single linked list current size.
*/
private int size = 0;
/**
* Add element to the end of the list.
* @param:
* paraVal: The given value.
*/
public void add(AnyType paraVal) {
insert(size, paraVal);
}//Of add
/**
* Pop the last element.
* @return:
* The popped value.
*/
public AnyType pop(){
return delete(size - 1);
}//Of pop
/**
* Insert element at specified index.
* @param:
* paraIdx: The given index.
* paraVal: The given value.
*/
public void insert(int paraIdx, AnyType paraVal) {
if (paraIdx > size) {
throw new IndexOutOfBoundsException("The index error.");
}//Of if
SingleNode <AnyType> tempNode = head;
int i = 0;
while (i++ < paraIdx) {
tempNode = tempNode.next;
}//Of while
SingleNode<AnyType> paraNode = new SingleNode <>(paraVal);
paraNode.next = tempNode.next;
tempNode.next = paraNode;
size++;
}//of add
/**
* Delete the element at specified index.
* @param:
* paraIdx: The given index of element to delete.
* @return:
* The deleted value.
*/
public AnyType delete(int paraIdx) {
if (size == 0) {
throw new RuntimeException("The single linked list is empty.");
}//Of if
if (size <= paraIdx) {
throw new IndexOutOfBoundsException("The index error.");
}//Of if
SingleNode <AnyType> retNode = head;
int i = 0;
while (i++ < paraIdx) {
retNode = retNode.next;
}//Of while
retNode.next = retNode.next.next;
size--;
return retNode.val;
}//Of delete
/**
* Get the current size of the single linked list.
* @return:
* The current size of the single linked list.
*/
public int getSize() {
return size;
}//Of getSize
/**
* Display the single linked list.
*/
public void display() {
if (size == 0) {
throw new RuntimeException("The single linked list is empty.");
}//Of if
System.out.print("The single linked list is:\n[");
SingleNode <AnyType> tempNode = head;
int i = 0;
while (i++ < size - 1) {
tempNode = tempNode.next;
System.out.printf("%s, ", tempNode.val);
}//Of while
System.out.printf("%s]\n", tempNode.next.val);
}//Of display
/**
* The main function.
*/
public static void main(String[] args) {
MySingleLinkedList <Character> test = new MySingleLinkedList<>();
test.add('a');
test.add('b');
test.insert(0, 'c');
test.add('d');
test.insert(0, '5');
test.delete(4);
test.pop();
test.add('+');
test.display();
System.out.println(test.getSize());
}//Of main
}//Of class MySingleLinkedList
class SingleNode <AnyType>{
/**
* The value.
*/
AnyType val;
/**
* The next node.
*/
SingleNode<AnyType> next;
/**
* The first constructor.
* @param
* paraVal: The given value.
*/
SingleNode (AnyType paraVal) {
val = paraVal;
}//The first constructor
}//Of class SingleNode
以上就是本文的全部内容，希望对大家的学习有所帮助，也希望大家多多支持脚本之家。