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import java.io.*;
import java.util.*;
//学生类
class Student implements Comparable<Student>
{
private String name;
private int ma,cn,en;
private int sum;
Student(String name,int ma,int cn,int en)
{
this.name=name;
this.ma=ma;
this.cn=cn;
this.en=en;
sum=ma+cn+en;
}
public String getName()
{
return name;
}
public int getSum()
{
return sum;
}
public int hashCode()
{
return name.hashCode()+sum*7;
}
public boolean equals(Object obj)
{
if(!(obj instanceof Student))
throw new ClassCastException("类型不匹配");
Student s=(Student)obj;
return this.name.equals(s.name) && this.sum==s.sum;
}
public int compareTo(Student s)//让对象本身具备比较性在数据传入的时候会自动进行比较无需再次调用
{
int num=new Integer(this.sum).compareTo(new Integer(s.sum));
if(num==0)
return this.name.compareTo(s.name);
return num;
}
public String toString()
{
return "Student[" + name +","+ "ma" + "," + "cn" + "," + "en" +"]";
}
}
//学生工具类输入信息并存入集合
class StudentInfoTool<T>
{
public static Set<Student> getStudents() throws IOException
{
BufferedReader bufr=
new BufferedReader(new InputStreamReader(System.in));
String line=null;
Set<Student> stus=new TreeSet<Student>();
while( (line=bufr.readLine() )!=null )
{
if("voer".equals(line))
break;
String[] in=line.split(",");
Student stu=new Student(in[0],
Integer.parseInt(in[1]),
Integer.parseInt(in[2]),
Integer.parseInt(in[3]));//学生对象建立好了然后放入集合
stus.add(stu);//对象放入集合
}
bufr.close();
return stus;
}
public static void write2File(Set<Student> stus) throws IOException
{
BufferedWriter bufw=new BufferedWriter(new FileWriter("Student.txt"));
for(Student stu:stus)
{
bufw.write(stu.toString()+"\t");
// bufw.write(stu.getSum());
bufw.newLine();
bufw.flush();
}
}
public static Set<Student> getStudent() {
// TODO Auto-generated method stub
return null;
}
}
//主函数类
class A
{
public static void main(String[] args) throws IOException
{
Set<Student> stus=StudentInfoTool.getStudents();
StudentInfoTool.write2File(stus);
}
}

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