Simple implementation of the LinkedList of Javase Foundation

Source: Internet
Author: User
Tags object object

This is a simple implementation of the LinkedList bottom.

 Packagecom.yck.mylinkedlist; Public classNode {PrivateNode previous;//Previous Node    PrivateObject object;//What is stored at this node ?    PrivateNode Next;//next node.             PublicNode () {} PublicNode (node Previous, Object object, node next) {Super();  This. Previous =previous;  This. Object =object;  This. Next =Next; }             PublicNode getprevious () {returnprevious; }     Public voidsetprevious (Node previous) { This. Previous =previous; }     PublicObject GetObject () {returnobject; }     Public voidSetObject (Object object) { This. Object =object; }     PublicNode GetNext () {returnNext; }     Public voidSetnext (Node next) { This. Next =Next; }        }

 Packagecom.yck.mylinkedlist;/*** Manual implementation of the LinkedList bottom, this time with generics *@authorAdministrator * *@param<T>*/ Public classMylinkedlist<t>{    PrivateNode first; PrivateNode last; Private intsize;  Publicmylinkedlist () {} Public voidAdd (T t) {Node n=NewNode (); if(First = =NULL) {n.setprevious (NULL);            N.setobject (t); N.setnext (NULL); First=N; Last=N; Size++; }        Else{n.setprevious (last);            N.setobject (t); N.setnext (NULL);            Last.setnext (n); Last=N; Size++; }            }     Public voidAddintindex,t T)        {Rangcheck (index); Node Temp=NewNode (); if(Index = = 0) {temp.setprevious (NULL);            Temp.setobject (t);            Temp.setnext (first); First=temp; }        Else if(Index! =size) {temp.setprevious (getnode (Index-1));            Temp.setobject (t);            Temp.setnext (GetNode (index)); GetNode (Index-1). Setnext (temp);                    GetNode (Index). setprevious (temp); }        Else{temp.setprevious (last);            Temp.setobject (t); Temp.setnext (NULL); Last=temp; } size++; }     Public voidAdd (mylinkedlist<t>list) {Node temp=NewNode (); Temp=List.first; Temp.setprevious ( This. last);  This. Last.setnext (temp);  This. Last =List.last;  This. Size + =list.size; List.first.setPrevious (NULL); }         Public voidRemoveintindex) {GetNode (Index-1). Setnext (GetNode (index+1));; GetNode (Index). Setprevious (GetNode (Index-1)); Size--; }             PublicNode GetNode (intindex)        {Rangcheck (index); Node Temp=NewNode (); Temp=First ;  for(inti=0;i<index;i++) {Temp=Temp.getnext (); }        returntemp; }             PublicObject Get (intindex) {        returngetnode (Index). GetObject (); }             Public voidRangcheck (intindex) {        if(index<0 | | index>= This. Size)Try        {                Throw NewException (); }        Catch(Exception e) {//TODO auto-generated Catch blockE.printstacktrace (); }    }             Public Static voidMain (string[] args) {mylinkedlist<String> list =NewMylinkedlist<string>(); List.add ("AAA"); List.add ("Ooo"); List.add ("XXX"); List.add ("FFF");  for(inti=0;i<list.size;i++) System.out.println (List.get (i)); System.out.println ("****************"); List.remove (2);  for(inti=0;i<list.size;i++) System.out.println (List.get (i)); System.out.println ("****************"); Mylinkedlist<String> List1 =NewMylinkedlist<string>(); List1.add ("I"); List1.add ("Love"); List1.add ("U");        System.out.println (List1.first.getPrevious ()); System.out.println ("****************");  for(inti=0;i<list1.size;i++) System.out.println (String) list1.get (i)); System.out.println ("****************");        List.add (List1);  for(inti=0;i<list.size;i++) System.out.println (String) list.get (i)); System.out.println ("****************"); }}

Almost forgot to post the results of the simple test.

Simple implementation of the LinkedList of Javase Foundation

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