LinkedList的使用练习

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package 实验四;

public class Student {
	private String name;
	private int crose;
	public String getName() {
		return name;
	}
	public void setName(String name) {
		this.name = name;
	}
	public int getCrose() {
		return crose;
	}
	public void setCrose(int crose) {
		this.crose = crose;
	}
	public Student(String name, int crose) {
		super();
		this.name = name;
		this.crose = crose;
	}
	
}

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package 实验四;
import java.util.*;
public class Studenttest {

	public static void main(String[] args) {
		// TODO 自动生成的方法存根
		Scanner sc = new Scanner(System.in);
		Student st1 = new Student("刘德华",90);
		Student st2 = new Student("张学友",80);
		Student st3 = new Student("刘杰",65);
		Student st4 = new Student("章子怡",100);
		Student st5 = new Student("周迅",60);
		//创建一个链表
		LinkedList<Student> lin = new LinkedList<Student>();
		//向链表中添加元素
		lin.add(st1);
		lin.add(st2);
		lin.add(st3);
		lin.add(st4);
		lin.add(st5);
		//输出链表中元素的个数
		System.out.println(lin.size());
		
		//创建lin链表的迭代器
		Iterator<Student> it = lin.iterator();
		System.out.println();
		
//		//hasnext没有指针下移操作，只判断是否存在下一元素
//		while(it.hasNext()) {
//			//next指针下移，返回指针指向的元素
//			System.out.print(it.next().getName());
//			System.out.println(it.next().getCrose());
//		}
			
		while(it.hasNext()) {
			//equals判断是否存在
			if("刘杰".equals(it.next().getName())) {
				//remove删除元素
				it.remove();
			}
		}
		
		//遍历链表元素
		for(Student s : lin) {
			System.out.println(s.getName()+"  "+s.getCrose());
		}
		
		for(Student s : lin) {
			if("刘德华".equals(s.getName())) {
				//更改元素数据
				s.setCrose(95);
			}
		}
		System.out.println();
		
		for(Student s : lin) {
			System.out.println(s.getName()+"  "+s.getCrose());
		}
		System.out.println();
		
		for(Student s : lin) {
			if(s.getCrose()<60) {
				System.out.println(s.getName());
			}
		}
	}

}