public class Test {
public static void main(String[] args) {
HeroNode h1 = new HeroNode(1,"001","111");
HeroNode h2 = new HeroNode(2,"002","222");
HeroNode h3 = new HeroNode(3,"003","333");
HeroNode h4 = new HeroNode(4,"004","444");
HeroNode h_modify = new HeroNode(4,"andfk","afnbh");
DoubleLinkedList d1 = new DoubleLinkedList();
d1.add(h1);
d1.add(h2);
d1.add(h3);
d1.add(h4);
System.out.println(d1.head.next.name);
System.out.println(d1.head.next.next.name);
System.out.println(d1.head.next.next.next.name);
System.out.println(d1.head.next.next.next.next.name);
}
}
class HeroNode{
int no;
String name;
String nickname;
HeroNode pre;
HeroNode next;
public HeroNode(int no,String name,String nickname){
this.no = no;
this.name = name;
this.nickname = nickname;
}
}
class DoubleLinkedList{
HeroNode head = new HeroNode(0,"头结点","Head");
public void add(HeroNode h1){
HeroNode temp = head;
while(true){
if(temp.next == null){
break;
}
temp = temp.next;
}
temp.next = h1;
h1.pre = temp;
}
public void delete(HeroNode h1){
HeroNode temp = head;
if(temp.next == null){
System.out.println("链表为空，无法删除");
}
boolean flag = false;
while(true){
if(temp.no == h1.no){
flag = true;
break;
}
if(temp.next == null){
break;
}
temp = temp.next;
}
if(flag){
if(temp.next != null){
temp.pre.next = temp.next;
temp.pre = temp.next.pre;
}else{
temp.pre.next = null;
}
}else{
System.out.println("没有找到要删除的节点");
}
}
public void modify(HeroNode h_tobemodofy){
HeroNode temp = head.next;
boolean flag = false;
if(head.next == null){
System.out.println("链表为空，无法修改");
}
while(true){
if(temp == null){
break;
}
if(temp.no == h_tobemodofy.no){
flag = true;
break;
}
temp = temp.next;
}
if(flag){
temp.name = h_tobemodofy.nickname;
temp.nickname = h_tobemodofy.nickname;
}else{
System.out.printf("很抱歉，没有找到编号为%d的节点",h_tobemodofy.no);
}
}
}经过测试，以上代码没什么问题，但我的问题是：怎么判断该把temp赋head还是赋head.next呢？
