用迭代器来遍历链表

[zhong348800]

我用java写一个用迭代器来遍历链表老是出现错误，我想请问是怎么回事？
这是我的代码？
import java.util.*;
class student {
String name;
int number;
float score;
student(String name,int number,float score)
{
this.name=name;
this.number=number;
this.score=score;
}
}
public class A {

/**
* @param args
*/
public static void main(String[] args) {
// TODO Auto-generated method stub
LinkedList<student>list=new LinkedList<student>();
student stu1=new student("赵好明",9012,80.0f);
student stu2=new student("钱小青",9013,90.0f);
student stu3=new student("孙力枚",9014,78.0f);
student stu4=new student("周左右",9015,55.0f);
list.add(stu1);
list.add(stu2);
list.add(stu3);
list.add(stu4);
Iterator<student> it = list.iterator();
while (it.hasNext())
student t = it.next();
System.out.println(t.name+" "+t.number+" "t.score);




}

}
用eclipse运行时这里老出错：

student t = it.next();
System.out.println(t.name+" "+t.number+" "t.score);

[安特矮油]

while后面少了个‘{’，" "t.score的中间少了个‘+’

[崔叫兽]

System.out.println(t.name+" "+t.number+" "+t.score);

[Aria_zuo]

		Iterator<student> it = list.iterator();
		while (it.hasNext()) {
			student t = (student)it.next();
		   System.out.println(t.name+" "+t.number+" "+t.score);
		}

[Aria_zuo]

遍历这样也行

		for(student s:list){
			System.out.println(s.name+" "+s.number+" "+s.score);
		}

[zhong348800]

在修改的时候真没有看出是这个问题！

[五哥]

A.class

import java.util.*;

class student {
	String name;
	int number;
	float score;

	public student(String name, int number, float score) {
		this.name = name;
		this.number = number;
		this.score = score;
	}
}

public class A {

	/**
	 * @param args
	 */
	public static void main(String[] args) {
		// TODO Auto-generated method stub
		LinkedList<student> list = new LinkedList<student>();
		student stu1 = new student("赵好明", 9012, 80.0f);
		student stu2 = new student("钱小青", 9013, 90.0f);
		student stu3 = new student("孙力枚", 9014, 78.0f);
		student stu4 = new student("周左右", 9015, 55.0f);
		list.add(stu1);
		list.add(stu2);
		list.add(stu3);
		list.add(stu4);
		Iterator<student> it = list.iterator();
		while (it.hasNext()) {
			student t = it.next();
			System.out.println(t.name + " " + t.number + " " + t.score);
		}

	}
}

[RDroid]

迭代器，主要是为了方便for-each隐型使用
使用迭代器，不是说一定要在代码里用到Iterator

for (student t : list) {
	System.out.println(t.name + " " + t.number + " " + t.score);
}