错误见下面注释处“temp”
public class HaTest{
public static void main(String[]args){
HashTable hashTable=new HashTable();
hashTable.add(new Num("1"));
hashTable.add(new Num("2"));
System.out.println(hashTable.node.obj);
System.out.println(hashTable.node.next.obj);
}
}
class Num{
String name;
Num next;
public Num(String name){
this.name=name;
}
public String getName(){
return name;
}
@Override
public String toString(){
return name;
}
}
class HashTable{
public Node node;
//Node为链表节点
class Node{
public Num obj;
public Node next;
public Node(Num t){
obj=t;
}
}
public void add(Num t){
if(node==null)
node=new Node(t);
else{
Node temp=node.next;
****** //这个地方用node.next赋值明显是对的,但换成temp进行赋值为什么出错
//wrong: temp=new Node(t);******
node.next=new Node(t);
}
}
}