file2.java

学习java编程的好程序

import java.util.LinkedList;
import java.util.Iterator;
///主运行类
///st1至st10是学生类的十个创建的对象
///set方法赋值给了这个十个对象
///list1是创建的链表对象
///it是迭代器对象，通过它来指向链表中的元素
///remove是链表中的删除元素的方法，通过它来删除元素
public class file2
{

    public static void main(String[] args)
    {
        student st1=new student("王鹏");
        student st2=new student("王浩");
        student st3=new student("孙鹏");
        student st4=new student("孙文君");
        student st5=new student("谭妮");
        student st6=new student("赵志强");
        student st7=new student("王凯");
        student st8=new student("苏瑞");
        student st9=new student("张伟");
        student st10=new student("张杰");
        st1.set(20,"男","10000","重庆大学","大学三年级","计算机专业","重庆市沙坪坝区");
        st2.set(22,"男","10001","重庆大学","大学三年级","计算机专业","重庆市沙坪坝区");
        st3.set(21,"男","10002","重庆大学","大学三年级","计算机专业","重庆市沙坪坝区");
        st4.set(19,"女","10003","重庆大学","大学三年级","计算机专业","重庆市沙坪坝区");
        st5.set(18,"女","10004","重庆大学","大学三年级","计算机专业","重庆市沙坪坝区");
        st6.set(24,"男","10005","重庆大学","大学三年级","计算机专业","重庆市沙坪坝区");
        st7.set(22,"男","10006","重庆大学","大学三年级","计算机专业","重庆市沙坪坝区");
        st8.set(29,"女","10007","重庆大学","大学三年级","计算机专业","重庆市沙坪坝区");
        st9.set(25,"女","10008","重庆大学","大学三年级","计算机专业","重庆市沙坪坝区");
        st10.set(28,"男","10009","重庆大学","大学三年级","计算机专业","重庆市沙坪坝区");
        try
        {
            LinkedList list1=new LinkedList();
            list1.add(st1); 
            list1.add(st2);
            list1.add(st3);
            list1.add(st4);
            list1.add(st5);
            list1.add(st6);
            list1.add(st7);
            list1.add(st8);
            list1.add(st9);
            list1.add(st10);
            Iterator it=list1.iterator();
            System.out.println("以下就是所有的同学的信息：");
            while(it.hasNext())
            {
                System.out.println(it.next());
            }
            System.out.println("其中有几个同学已经转学了!");
            System.out.println("那么就从数据库中删除他：");
            list1.remove();
            list1.remove();
            list1.remove();
            list1.remove();
            list1.remove();
            Iterator it1=list1.iterator();
            while(it1.hasNext())
            {
                System.out.println(it1.next());
            }
        }
        catch(Exception e){}
    }
}

///创建一个学生类
///name是学生姓名
///code是学生学号
///school是学生所在学校
///age是年龄
///grade是年级
///major是专业
///sexy是性别
///set方法是设置器
///get方法是访问器
///tostring方法是让对象以字符串的形式输出的方法
class student
{
    String name;
    int age;
    String sexy;
    String code;
    String school;
    String grade;
    String major;
    String address;
    student x;
    student y;
    student(String name)
    {
        this.name=name;
    }
    public void set(int age,String sexy,String code,String school,String grade,String major,String address)
    {
        this.age=age;
        this.sexy=sexy;
        this.school=school;
        this.grade=grade;
        this.major=major;
        this.code=code;
        this.address=address;
    }
    public String getname()
    {
        return name;
    }
    public String getcode()
    {
        return name;
    }
    public String getsexy()
    {
        return sexy;
    }
    public int getage()
    {
        return age;
    }
    public String getschool()
    {
        return school;
    }
    public String getmajor()
    {
        return major;
    }
    public String getgrade()
    {
        return grade;
    }
    public String getaddress()
    {
        return address;
    }
    public String toString()
    {
        String information="学生姓名："+name+" "+"学号："+code+" "+"性别"+sexy+" "+"年龄："+age+" "+"所在学校："+school+" "+"所学专业："+major+" "+"所在年级："+grade+" "+"家庭地址："+address;
        return information;
    }
}