package com.czie.iot1913.lps.IO.BufferStream.Better;

import java.io.BufferedWriter;
import java.io.FileWriter;
import java.io.IOException;
import java.util.Comparator;
import java.util.Scanner;
import java.util.TreeSet;

/**
 * FileName: ArrayListToFile 集合到檔案（資料排序進階版本）
 * Author:   lps
 * Date:     2022/3/26 18:50
 * Sign:劉品水 Q：1944900433
 */
public class ArrayListToFile {


    public static void main(String[] args) throws IOException {
        TreeSet<Student> treeset = new TreeSet<>(new Comparator<Student>() {
            @Override
            public int compare(Student s1, Student s2) {
                //int sum=(s2.getChinese()+s2.getMaths()+s2.getEnglish())-(s1.getChinese()+s1.getEnglish()+s1.getMaths());
                int sum = s2.getSum() - s1.getSum();
                int sum01 = sum == 0 ? s1.getName().compareTo(s2.getName()) : sum;
                //三目運算
                return sum01;
            }
        });
//        Student s0 = new Student("臭男人",28,60,50,90);
//        Student s1 = new Student("劉品水", 21, 100, 100, 100);
//        Student s2 = new Student("王得發", 29, 65, 100, 100);
//        treeset.add(s0);
//        treeset.add(s1);
//        treeset.add(s2);
        for (int i = 0; i < 3; i++) {
            Scanner sc = new Scanner(System.in);
            System.out.println("請輸入第" + (i + 1) + "學生的資訊");
            System.out.println("姓名：");
            String name = sc.next();
            System.out.println("年齡：");
            int age = sc.nextInt();
            System.out.println("語文成績：");
            int chinese = sc.nextInt();
            System.out.println("數學成績：");
            int maths = sc.nextInt();
            System.out.println("英語成績：");
            int english = sc.nextInt();
            //賦值給學生
            Student s = new Student();
            s.setName(name);
            s.setAge(age);
            s.setChinese(chinese);
            s.setMaths(maths);
            s.setEnglish(english);
            treeset.add(s);
        }

        BufferedWriter bw = new BufferedWriter(new FileWriter("F:\\JavaCode\\array.txt"));
        for (Student s : treeset) {
            bw.write(s.getName()+","+s.getAge()+","+s.getChinese()+","+s.getMaths()+","+s.getEnglish()+","+s.getSum());
            bw.newLine();
            bw.flush();
        }
        bw.close();

    }
}

package com.czie.iot1913.lps.IO.BufferStream.Better;

import java.util.Objects;

/**
 * FileName: Student
 * Author:   lps
 * Date:     2022/3/26 18:51
 * Sign:劉品水 Q：1944900433
 */
public class Student {
 private String name;
 private int age;
 private int chinese;
 private int maths;
 private int english;

 @Override
 public String toString() {
  return "Student{" +
          "name='" + name + '\'' +
          ", age=" + age +
          ", chinese=" + chinese +
          ", maths=" + maths +
          ", english=" + english +
          '}';
 }

 @Override
 public boolean equals(Object o) {
  if (this == o) return true;
  if (o == null || getClass() != o.getClass()) return false;
  Student student = (Student) o;
  return age == student.age && chinese == student.chinese && maths == student.maths && english == student.english && Objects.equals(name, student.name);
 }

 @Override
 public int hashCode() {
  return Objects.hash(name, age, chinese, maths, english);
 }

 public String getName() {
  return name;
 }

 public void setName(String name) {
  this.name = name;
 }

 public int getAge() {
  return age;
 }

 public void setAge(int age) {
  this.age = age;
 }

 public int getChinese() {
  return chinese;
 }

 public void setChinese(int chinese) {
  this.chinese = chinese;
 }

 public int getMaths() {
  return maths;
 }

 public void setMaths(int maths) {
  this.maths = maths;
 }

 public int getEnglish() {
  return english;
 }

 public void setEnglish(int english) {
  this.english = english;
 }

 public Student(String name, int age, int chinese, int maths, int english) {
  this.name = name;
  this.age = age;
  this.chinese = chinese;
  this.maths = maths;
  this.english = english;
 }

 public Student() {
 }
 public int getSum(){
  return this.chinese+this.maths+this.english;
 }
}