java 员工管理系统 向文本文件中备份

package emp;

//顶级父类

import java.util.*;

public class emper {

String id;

String name;

String posi;

int holiday;

double salary;

public emper(String id,String name,String posi,int holiday,double salary){

this.id = id;

this.name = name;

this.posi = posi;

this.holiday = holiday;

this.salary = salary;

}

public String getName(){

return this.name;

}

public double sumSalary(){

return 0.00;

}

public String toString(){

return "编号:"+id+" 名字:"+name+ " 职位:"+posi

+" 请假天数:"+holiday+" 工资:"+ sumSalary();

}

}

//普通员工

package emp;

import java.util.*;

public class commonEmployee extends emper{

public commonEmployee(String id,String name,String posi,int holiday,double salary){

super(id, name, posi, holiday, salary);

}

public double sumSalary(){

return (this.salary*1.6+200)-(salary/30*holiday);

}

}

//经理

package emp;

import java.util.*;

public class Manager extends emper{

public Manager(String id,String name,String posi,int holiday,double salary){

super(id, name, posi, holiday, salary);

}

public double sumSalary(){

return (this.salary*1.7+500)-(salary/30*holiday);

}

}

//董事

package emp;

import java.util.*;

public class Director extends emper{

public Director(String id,String name,String posi,int holiday,double salary){

super(id, name, posi, holiday, salary);

}

public double sumSalary(){

return (this.salary*1.38+5000)-(salary/30*holiday);

}

}

//主要的逻辑程序

package emp;

import java.io.*;

import java.util.*;

import com.sun.javafx.geom.AreaOp.AddOp;

public class testEmp {

Scanner sc = new Scanner(System.in);

// 定义查找到的索引

int findex;

String filename = "D:/emp.txt"; //备份文件的储存位置

ArrayList<emper> empList = new ArrayList<emper>();

public void choise() throws IOException {

System.out.println("|------------------|\n|-----1 增加 ------|"

+ "\n|-----2 删除 ------|\n"

+ "|-----3 修改 ------|\n|-----4 查询 ------|"

+ "\n|-----5 备份 ------|\n|-----0 退出 ------|\n|------------------|");

System.out.println("请选择业务");

int mchoise = sc.nextInt();

switch (mchoise) {

case 1:

Add();

System.out.println("添加成功");

break;

case 2:

del();

break;

case 3:

upd();

break;

case 4:

System.out.println("请输入要查找的姓名");

String fname = sc.next();

Find(fname);

break;

case 5:

Writer();

System.out.println("备份完成");

break;

case 0:

System.out.print("退出成功");

Writer();

break;

default:

getAll();

Writer();

break;

}

}

//初始化,将文件内容导入员工 数组

public void init() throws IOException{

//判断d盘下的文件是否存在 ,如果不存在,生成文件

File f1 = new File(filename) ;

if(!f1.exists()){

f1.createNewFile();

System.out.println("文件已生成");

}

BufferedReader br = new BufferedReader(new FileReader(f1));

String rline;

int n = 0;

br.readLine(); //跳过第一行 ;

while((rline = br.readLine()) !=null ){

String[] read = rline.split(",");

empList.add(new emper(read[0],read[1],read[2],Integer.parseInt(read[3]),Double.parseDouble(read[4])) );

}

br.close(); //关闭

System.out.println("初始化成功");

}

//备份

public void Writer() throws IOException {

BufferedWriter bw = new BufferedWriter( new FileWriter("D:/emp.txt") );

bw.write("编号 , 姓名 , 职位 ,请假天数 , 工资");

bw.newLine(); //换行;

for(int w=0;w<empList.size();w++){

String wid = empList.get(w).id;

String wname = empList.get(w).name;

String wposi = empList.get(w).posi;

int wholi = empList.get(w).holiday;

double wsalaery = empList.get(w).sumSalary();

bw.write(wid+","+wname+","+wposi+","+wholi+","+wsalaery);

bw.newLine(); //换行;

}

bw.close();

}

//修改

public void upd() {

System.out.println("请输入你要修改的名字");

String uname = sc.next();

if (Find(uname)) {

System.out.println("请输入员工编号");

String id = sc.next();

System.out.println("请输入员工职务(1 :普通员工, 2:经理, 3:董事)");

String posi = sc.next();

System.out.println("请输入员工请假天数");

int hday = sc.nextInt();

System.out.println("请输入员工基本工资");

double sal = sc.nextDouble();

if (posi.equals("1")) {

empList.set(findex,new commonEmployee(id, uname, "普通员工", hday, sal));

} else if (posi.equals("2")) {

empList.set(findex,new Manager(id, uname, "经理", hday, sal));

} else if (posi.equals("3")) {

empList.set(findex,new Director(id, uname, "董事", hday, sal));

}

System.out.println("修改成功");

System.out.println(empList.get(findex));

} else {

System.out.println("无此纪录");

}

}

//删除

public void del() {

System.out.println("请输入要删除的名字");

String dname = sc.next();

if (Find(dname)) {

empList.remove(findex);

System.out.println("纪录删除成功");

} else {

System.out.println("无此纪录");

}

}

// 增加数据

public void Add() {

System.out.println("请输入员工编号");

String id = sc.next();

System.out.println("请输入员工姓名");

String name = sc.next();

System.out.println("请输入员工职务(1 :普通员工, 2:经理, 3:董事)");

String posi = sc.next();

System.out.println("请输入员工请假天数");

int hday = sc.nextInt();

System.out.println("请输入员工基本工资");

double sal = sc.nextDouble();

if (posi.equals("1")) {

empList.add(new commonEmployee(id, name, "普通员工", hday, sal));

} else if (posi.equals("2")) {

empList.add(new Manager(id, name, "普通员工", hday, sal));

} else if (posi.equals("3")) {

empList.add(new Director(id, name, "普通员工", hday, sal));

}

System.out.println("增加数据成功");

System.out.println(empList.get(empList.size() - 1));

}

// 查全部

public void getAll() {

for (int w = 0; w < empList.size(); w++) {

Object emp = empList.get(w);

System.out.println(emp);

}

}

// 按姓名查找

public boolean Find(String name) {

for (int w = 0; w < empList.size(); w++) {

if (name.equals(empList.get(w).getName())) {

findex = w;

System.out.println(empList.get(w));

return true;

}

}

// System.out.println(empList.get(w));

return false;

}

}

//主程序

package emp;

import java.io.*;

import java.util.*;

import com.sun.javafx.geom.AreaOp.AddOp;

public class testEmp {

Scanner sc = new Scanner(System.in);

// 定义查找到的索引

int findex;

String filename = "D:/emp.txt"; //备份文件的储存位置

ArrayList<emper> empList = new ArrayList<emper>();

public void choise() throws IOException {

System.out.println("|------------------|\n|-----1 增加 ------|"

+ "\n|-----2 删除 ------|\n"

+ "|-----3 修改 ------|\n|-----4 查询 ------|"

+ "\n|-----5 备份 ------|\n|-----0 退出 ------|\n|------------------|");

System.out.println("请选择业务");

int mchoise = sc.nextInt();

switch (mchoise) {

case 1:

Add();

System.out.println("添加成功");

break;

case 2:

del();

break;

case 3:

upd();

break;

case 4:

System.out.println("请输入要查找的姓名");

String fname = sc.next();

Find(fname);

break;

case 5:

Writer();

System.out.println("备份完成");

break;

case 0:

System.out.print("退出成功");

Writer();

break;

default:

getAll();

Writer();

break;

}

}

//初始化,将文件内容导入员工 数组

public void init() throws IOException{

//判断d盘下的文件是否存在 ,如果不存在,生成文件

File f1 = new File(filename) ;

if(!f1.exists()){

f1.createNewFile();

System.out.println("文件已生成");

}

BufferedReader br = new BufferedReader(new FileReader(f1));

String rline;

int n = 0;

br.readLine(); //跳过第一行 ;

while((rline = br.readLine()) !=null ){

String[] read = rline.split(",");

empList.add(new emper(read[0],read[1],read[2],Integer.parseInt(read[3]),Double.parseDouble(read[4])) );

}

br.close(); //关闭

System.out.println("初始化成功");

}

//备份

public void Writer() throws IOException {

BufferedWriter bw = new BufferedWriter( new FileWriter("D:/emp.txt") );

bw.write("编号 , 姓名 , 职位 ,请假天数 , 工资");

bw.newLine(); //换行;

for(int w=0;w<empList.size();w++){

String wid = empList.get(w).id;

String wname = empList.get(w).name;

String wposi = empList.get(w).posi;

int wholi = empList.get(w).holiday;

double wsalaery = empList.get(w).sumSalary();

bw.write(wid+","+wname+","+wposi+","+wholi+","+wsalaery);

bw.newLine(); //换行;

}

bw.close();

}

//修改

public void upd() {

System.out.println("请输入你要修改的名字");

String uname = sc.next();

if (Find(uname)) {

System.out.println("请输入员工编号");

String id = sc.next();

System.out.println("请输入员工职务(1 :普通员工, 2:经理, 3:董事)");

String posi = sc.next();

System.out.println("请输入员工请假天数");

int hday = sc.nextInt();

System.out.println("请输入员工基本工资");

double sal = sc.nextDouble();

if (posi.equals("1")) {

empList.set(findex,new commonEmployee(id, uname, "普通员工", hday, sal));

} else if (posi.equals("2")) {

empList.set(findex,new Manager(id, uname, "经理", hday, sal));

} else if (posi.equals("3")) {

empList.set(findex,new Director(id, uname, "董事", hday, sal));

}

System.out.println("修改成功");

System.out.println(empList.get(findex));

} else {

System.out.println("无此纪录");

}

}

//删除

public void del() {

System.out.println("请输入要删除的名字");

String dname = sc.next();

if (Find(dname)) {

empList.remove(findex);

System.out.println("纪录删除成功");

} else {

System.out.println("无此纪录");

}

}

// 增加数据

public void Add() {

System.out.println("请输入员工编号");

String id = sc.next();

System.out.println("请输入员工姓名");

String name = sc.next();

System.out.println("请输入员工职务(1 :普通员工, 2:经理, 3:董事)");

String posi = sc.next();

System.out.println("请输入员工请假天数");

int hday = sc.nextInt();

System.out.println("请输入员工基本工资");

double sal = sc.nextDouble();

if (posi.equals("1")) {

empList.add(new commonEmployee(id, name, "普通员工", hday, sal));

} else if (posi.equals("2")) {

empList.add(new Manager(id, name, "普通员工", hday, sal));

} else if (posi.equals("3")) {

empList.add(new Director(id, name, "普通员工", hday, sal));

}

System.out.println("增加数据成功");

System.out.println(empList.get(empList.size() - 1));

}

// 查全部

public void getAll() {

for (int w = 0; w < empList.size(); w++) {

Object emp = empList.get(w);

System.out.println(emp);

}

}

// 按姓名查找

public boolean Find(String name) {

for (int w = 0; w < empList.size(); w++) {

if (name.equals(empList.get(w).getName())) {

findex = w;

System.out.println(empList.get(w));

return true;

}

}

// System.out.println(empList.get(w));

return false;

}

}