java单向链表代码 单链表的基本操作java
求一个JAVA的单链表程序
package OS;
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public class IntNode
{
public String name;
//public int run_time=44;
public int run_time=(int)(Math.random()*100);
public IntNode next;
public int num;
public IntNode(int n,String n1){
this(n,n1,null);
}
public IntNode(int n,String n1,IntNode nn){
num=n;
name=n1;
next=nn;
}
}
package OS;
public class IntSLList
{
public IntNode head;//头尾“指针”
public IntNode tail;
public IntSLList(){
head=tail=null;
}
//判别链表是否为空
public boolean isEmpty(){
return head==null;
}
//从链表头部添加结点————此处的函数的传递参数是一个数值，也就是info
public void addToHead(IntNode some){
some.next=head;
head=some;
if(tail==null)
tail=head;
}
//从链表的尾部添加结点————同上
public void addToTail(IntNode some){
if(!isEmpty())
{
tail.next=some;
tail=tail.next;
}
else
head=tail=some;
}
//从链表头开始删除
public void deleteFromHead(){
if(head==tail)
head=tail=null;
else{
head=head.next;
}
}
}
Java单向链表代码。
这是我写的一个差不多，你看一下吧：
package com.test.list;
import java.io.BufferedReader;
import java.io.InputStreamReader;
public class LinkedList {
public static void main(String[] args) {
MyList l = new MyList();
MyListNode node = l.createList();
l.printNode(node);
//l.searchNode(node, 4);
//node = l.insertNode(node, 3, "g");
//l.printNode(node);
node = l.deleteNode(node, "d");
l.printNode(node);
}
}
class MyListNode {
public String data;
public MyListNode nextNode;
}
class MyList {
public MyListNode createList() {
MyListNode node = new MyListNode();
MyListNode q ,p;
q = new MyListNode();
q = node;
while (true) {
String s = null;
try {
BufferedReader br = new BufferedReader(new InputStreamReader(
System.in));
System.out.println("请输入节点数据：");
s = br.readLine();
if (s.equals("0")) {
break;
} else {
p = new MyListNode();
p.data = s;
p.nextNode = null;
q.nextNode = p;
q = p;
}
} catch (Exception e) {
e.printStackTrace();
}
}
return node;
}
public void printNode(MyListNode node) {
MyListNode p = node.nextNode;
while (p!= null) {
System.out.print(" "+p.data);
p = p.nextNode;
}
}
public void searchNode(MyListNode node, int i){
MyListNode p = node.nextNode;
int j = 1;
while (p != null ji) {
p = p.nextNode;
j++;
}
if( p == null || ji) {
System.out.println("error");
}
System.out.println(" --"+p.data+"--");
}
public MyListNode insertNode(MyListNode node, int i ,String s) {
MyListNode p = node.nextNode;
int j = 1;
while (p != null ji-1) {
p = p.nextNode;
j++;
}
if( p == null || ji-1) {
System.out.println("error");
}
MyListNode n = new MyListNode();
n.data = s;
n.nextNode = p.nextNode;
p.nextNode = n;
return node;
}
public MyListNode deleteNode(MyListNode node ,String s) {
MyListNode p = node;
while(p.nextNode != null !p.nextNode.data.equals(s)) {
p = p.nextNode;
}
p.nextNode = p.nextNode.nextNode;
return node;
}
}
/*逆位序创建
public MyListNode createList() {
MyListNode node = new MyListNode();
node.nextNode = null;
while(true) {
String s = null;
try {
BufferedReader br = new BufferedReader(new InputStreamReader(
System.in));
System.out.println("请输入节点数据：");
s = br.readLine();
if(s.equals("0")) {
break;
}else {
MyListNode n = new MyListNode();
n.data = s;
n.nextNode = node.nextNode;
node.nextNode = n;
}
} catch (Exception e) {
e.printStackTrace();
}
}
return node;
}
*/
java单向链表
java.util.Linkedlist是双向链表，当然也就包括了单链表的功能，你可以去看他怎么写的啊
public class SingleLinkedListE {
private EntryE first, last;
private int size = 0;
public void add(E element) {
EntryE newEntry = new EntryE(element, null);
if (first == null) {
first = last = newEntry;
} else {
last.next = newEntry;
last = newEntry;
}
++size;
}
public E get(int index) {
if (index 0 || index = size)
throw new IndexOutOfBoundsException("Index: "+index+
", Size: "+size);
EntryE e = first;
for (int i = 0; i index; ++i)
e = e.next;
return e.data;
}
private static class EntryE {
Entry(E data, EntryE next) {
this.data = data;
this.next = next;
}
E data;
EntryE next;
}
}
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