Java.作业2 myClass

要求：






代码：

import java.util.*;
public class myClass
{
public static void main(String[] args)
{
String students[] = new String[3];
Student Student1 = new Student("20140101",true);
Student Student2 = new Student("20140102",false);
Student Student3 = new Student("20140103",false);
int i = 0;
System.out.println("请输入姓名：");
while(i < 3)
{
if(i == 0)
{
Student1.input();
students[i] = Student1.name;
i++;
}
if(i == 1)
{
Student2.input();
students[i] = Student2.name;
i++;
}
if(i == 2)
{
Student3.input();
students[i] = Student3.name;
i++;
}

}

Student t = new Student();
if(Student1.name.compareTo(Student2.name) > 0)
{
t = Student1;
Student1 = Student2;
Student2 = t;
}
if(Student2.name.compareTo(Student3.name) > 0)
{
t = Student2;
Student2 = Student3;
Student3 = t;
}
if(Student1.name.compareTo(Student2.name) > 0)
{
t = Student1;
Student1 = Student2;
Student2 = t;
}
System.out.println("根据姓名排序后：");
Student1.out();
Student2.out();
Student3.out();
}
}

class Student
{
String ID;
String name;
boolean sex;
Student()
{
}
Student(String ID,boolean sex)
{
this.ID = ID;
this.sex = sex;
}
void input()
{
Scanner reader = new Scanner(System.in);
this.name = reader.next();
}
void out()
{
System.out.print("姓名："+name+" 学号："+ID+" 性别：");
if(sex == true)
System.out.println("男");
else
System.out.println("女");
}
}

class Teacher
{
String name;
void input()
{
Scanner reader = new Scanner(System.in);
this.name = reader.next();
}
}

结果：