Java 职员工资小程序 工资排序

java需要按照员工工资大小进行排序，但是为什么会出现bug不能运行，显示出来数组越界？

你好 问题别人已经说清楚了
建议排序的做法是
你的Employee对象实现Compare接口 重写比较方法
再调用Collection的sort方法进行排序
如果不会写 把源码贴出来 我帮你改

j是i+1，那它最后的边界应该比i的边界还小一才对

i的范围才到 newList.size()-1 ;j范围到newList.size();肯定不行

可用stream流进行排序

第二个for循环改成这样

j=i;j<newList.size()-1;j++

降序
newList.stream().sorted(Comparator.comparing(Employee::getGongzi).reversed());
升序
newList.stream().sorted(Comparator.comparing(Employee::getGongzi));

排序调库啊，手写要出错

package application;

public class date {
public double years;
public double months;
public double days;
}package application;

import java.io.Serializable;

public class person implements Serializable {
public String name;
public String sex;
public String id;
public String birth;
public void setName(String n) {
    this.name = n;
}

public void setSex(String n) {
    this.sex = n;
}

public person(String n, String s, String birth,String id) {
    this.name = n;
    this.sex = s;
    this.birth=birth;
    this.id=id;
}

public String getSex() {
    return sex;
}

public String getName() {
    return name;
}
public String getBirth(){
    return birth;
    }
public void setBirth(String n){
    this.birth=n;
    }
public String getId(){
    return id;
}
public void setId(String n){
    this.id=n;
}
}package application;

import java.io.Serializable;

public class Employee extends person implements Serializable {
public String gonghao;
public String phone;
public String keshi;
public int gongzi;
    public Employee(String name, String sex, String id, String birth, String gonghao, String phone, String keshi,int gongzi) 
        {
        super(name,sex,id,birth);
        this.gonghao=gonghao;
        this.phone=phone;
        this.keshi=keshi;
        this.gongzi=gongzi;
    }

    public int getGongzi() {
        return gongzi;
    }
    

    public String getGonghao() {
        return gonghao;
    }

    public String getKeshi() {
        return keshi;
    }

    public String getName() {
        return name;
    }
    public String toString() {
        return "姓名：" + getName() + ",性别：" + getSex() + ",身份证号码:" + getId() + ", \n出生日期：" + getBirth() + ",工号：" + gonghao
                + ",电话" +phone + ", \n科室:" + keshi + ",工资:" +gongzi;
    }
}


package application;
import java.util.List;
import java.io.File;
import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.ObjectInputStream;
import java.io.ObjectOutputStream;
import java.util.ArrayList;
import java.util.Collections;
import java.util.Scanner;

public class test {
   static Scanner sc=new Scanner(System.in);
   static File fp=new File("职员工资信息.txt");
   static List<Employee>list=new ArrayList<Employee>();
   
   
   private static void duqu() throws    FileNotFoundException,IOException,ClassNotFoundException{
       ObjectInputStream ois=new ObjectInputStream(new FileInputStream(fp));
       list=(List<Employee>)ois.readObject();
       ois.close();
       }
       public static void xieru()throws FileNotFoundException,IOException,ClassNotFoundException{
           FileOutputStream os = new FileOutputStream(fp);
           ObjectOutputStream oos = new ObjectOutputStream(os);
           oos.writeObject(list);
           oos.flush();
           oos.close();
       }
    
   public static void menu(){
       System.out.println("**********教职工工资查询***********");
       System.out.println("**********1.输入职工信息***********");
       System.out.println("**********2.查询职工信息***********");
       System.out.println("**********3.职工工资排序***********");
       System.out.println("**********4.修改职工信息***********");
       System.out.println("**********5.删除职工信息***********");
       System.out.println("**********0.退出系统**************");
       System.out.println("****请选择功能，并输入对应序号********");
   }
   
   public static void main(String[] args) throws IOException,ClassNotFoundException{
        int selet;
        while(true){
            if(!fp.exists()){
                fp.createNewFile();
            }else{
                 duqu();
            }
            menu();
            selet=sc.nextInt();
            switch(selet){
            case 1:
                shuru();
                break;
            case 2:
                chaxun();
                break;
            case 3:
                paixu();
                break;
            case 4:
                xiugai();
                break;
            case 5:
                shanchu();
                break;
            case 0:
                System.exit(0);
            }
        }
    }

private static void shanchu() throws IOException,ClassNotFoundException{
    System.out.println("请输入将删除的工号");
    String a=sc.next();
    Employee m=null;
    for (Employee e : list) {
        if (a.equals(e.getGonghao())) {
            m=e;
        }
    }
    if (m!= null) {
        System.out.println("是否确定删除？1.确定      2.取消");
        int x=sc.nextInt();
        if(x==1){
        list.remove(m);
        xieru();
        System.out.println("已删除");
        return;}
        else{
            return;
        }
    }
}



private static void xiugai() throws IOException,ClassNotFoundException{
    System.out.println("请输入将修改的工号");
    String a=sc.next();
    int i=0;
    for(Employee e:list){
        if(a.equals(e.getGonghao())){
            System.out.println(e);
            System.out.println("请重新输入姓名,性别,身份证号码,出生日期,工号,电话,所在科室,工资");
            String name=sc.next();
            String sex=sc.next();
            String id=sc.next();
            String birth=sc.next();
            String gonghao=sc.next();
            String phone=sc.next();
            String keshi=sc.next();
            int gongzi=sc.nextInt();
            Employee m=new Employee(name,sex,id,birth,gonghao,phone,keshi,gongzi);
            list.set(i, m);
            xieru();
            System.out.println("修改完成");
            return;
        }else{
            System.out.println("输入工号错误！");
        }
        i++;
    }
}

private static void paixu() throws IOException,ClassNotFoundException{
    System.out.println("按职员工资大小排序：");
    List<Employee>newList=list;
    for(int i=0;i<newList.size()-1;i++){
        for(int j=i+1;j<newList.size();j++){
        Collections.swap(list,newList.get(i).getGongzi(), newList.get(j).getGongzi());
    }
    
    for(Employee e:newList){
        System.out.println(e);
    }
    }
}



public static void chaxun() throws IOException,ClassNotFoundException{
    System.out.println("请选择：");
    System.out.println("1.根据工号查询职工信息\n2.根据姓名和科室查询职工信息\n3.分科室进行工资统计，计算各科室的平均工资");
    switch(sc.nextInt()){
    case 1:
        String a=sc.next();
        for(Employee e:list){
            if(a.equals(e.getGonghao())){
                System.out.println(e.toString());
            }
        }
        break;
    case 2:
        String a1=sc.next();
        String a2=sc.next();
        for(Employee e:list){
            if(a1.equals(e.getName())||a2.equals(e.getKeshi())){
                System.out.println(e.toString());
            }
        }
        break;
    case 3:
        double []p=new double[50];
        int i=0;
        System.out.println("请输入要计算的科室");
        String a3=sc.next();
        for(Employee e:list){
            if(a3.equals(e.getKeshi())){
            p[i]=e.getGongzi();
            System.out.println(p[0]+=p[i]);
            i++;
            System.out.println("该科室平均工资为："+(p[0]+=p[i])/(i+1));
            }    
        }
            }
}

private static void shuru() throws IOException,ClassNotFoundException{
    System.out.println("请输入姓名，性别，身份证号码，生日，工号，电话，所在科室，工资");
    String name=sc.next();
    String sex=sc.next();
    String id=sc.next();
    String birth=sc.next();
    String gonghao=sc.next();
    String phone=sc.next();
    String keshi=sc.next();
    int gongzi=sc.nextInt();
    Employee employee=new Employee(name,sex,id,birth,gonghao,phone,keshi,gongzi);
    list.add(employee);
    xieru();
    System.out.println("已保存成功");
}

}