LinkedList的一般for循环遍历、增强for循环遍历，Iterator迭代器遍历

package apro8;


import java.util.Iterator;
import java.util.LinkedList;

class test_1 
{
	public static void main(String[] args) 
	{
		LinkedList<Student> lk = new LinkedList<Student>();
		lk.add(new Student("张三",14));
		lk.add(new Student("李四",13));
		lk.add(new Student("王五",15));
		lk.add(new Student("赵六",19));
		
		//调用普通for循环遍历
		prt_1(lk);     
		
		//调用增强for循环遍历
		prt_2(lk);
		
		//调用Iterator迭代器遍历
		prt_3(lk);
	
	}

	//普通for循环遍历LinkedList
	public static void prt_1(LinkedList lk)
	{
		Student p;
		for (int i=0;i<lk.size();i++ )
		{
			p = (Student)lk.get(i);
            System.out.println(p.name + " " + p.age);
		}
	}
	
	//增强for循环遍历LinkedList
	public static void prt_2(LinkedList<Student> lk)
	{
	
		for(Student ps : lk)
		{
			System.out.println(ps.name + " " + ps.age);
		}
	}
	
	//增强Iterator迭代器遍历LinkedList
	public static void prt_3(LinkedList<Student> lk)
	{
		Iterator it = lk.iterator();
		while (it.hasNext())
		{   Student p = (Student)it.next();
			System.out.println(p.name + " " + p.age);
		}
	}
	
}

class Student
{
	String name;
	int age;
	public Student(){}
	public Student(String name,int age)
	{
        this.name = name;
		this.age = age;
	}
}

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