Bills.java
package cn.tx1;
/**
* ID 类别 账户 类型 余额 时间 备注
*/
public class Bills {
private String name;
private String account;
private String type;
private double total;
private String time;
private String desc;
//全参构造器
public Bills(String name, String account, String type, double total, String time, String desc) {
this.name = name;
this.account = account;
this.type = type;
this.total = total;
this.time = time;
this.desc = desc;
}
//无参构造器
public Bills() {
}
public String getName() {
return name;
}
public void setName(String name) {
this.name = name;
}
public String getAccount() {
return account;
}
public void setAccount(String account) {
this.account = account;
}
public String getType() {
return type;
}
public void setType(String type) {
this.type = type;
}
public double getTotal() {
return total;
}
public void setTotal(double total) {
this.total = total;
}
public String getTime() {
return time;
}
public void setTime(String time) {
this.time = time;
}
public String getDesc() {
return desc;
}
public void setDesc(String desc) {
this.desc = desc;
}
}
MainMenu.java
package cn.tx1;
import java.text.ParseException;
import java.text.SimpleDateFormat;
import java.util.*;
import java.util.stream.Collectors;
import java.util.stream.Stream;
public class MainMenu {
//创建一个集合来存储
static List<Bills> billsList=new ArrayList<>();
//静态代码块，类加载的时候第一时间执行 “果然还是用到了”
static {
//String name, String account, String type, double total, String time, String desc
billsList.add(new Bills("吃饭支出","建设银行","支出",122247,"2022-1-1","家庭聚餐"));
billsList.add(new Bills("吃饭支出","农业银行","支出",111222,"2021-12-11","家庭聚餐"));
billsList.add(new Bills("工资收入","农商银行","收入",927227,"2021-11-1","发工资"));
billsList.add(new Bills("交通支出","交通银行","支出",999247,"2021-1-1","交通支出"));
billsList.add(new Bills("买气球","建设银行","支出",222147,"2025-1-1","买气球"));
billsList.add(new Bills("奖金收入","投资银行","收入",908227,"2021-1-1","奖金"));
}
public static void showMain(){
System.out.println("--------随手记---------");
System.out.println("1、添加账务 2、删除帐务 3、查询账务 4、退出系统");
System.out.println("请输入功能序号【1-4】：");
}
public static void main(String[] args) {
run();
}
public static void run(){
showMain();
//创建一个flag标志,循环条件，变量存在
boolean flag=true;
//创建扫描器
Scanner sc=new Scanner(System.in);
//获得输入的选项
while (flag){
int num=sc.nextInt();
//判断1、2、3、4
switch (num){
case 1:
addBills();
break;
case 2:
delBills();
break;
case 3:
select();
break;
case 4:
flag=false;
break;
default:
System.out.println("请重新输入选项：");
}
}
System.out.println("退出系统,拜拜！");
}
private static void delBills() {
Scanner sc2=new Scanner(System.in);
int id= sc2.nextInt();
billsList.remove(id-1);
System.out.println("删除成功！！");
showMain();
}
private static void addBills() {
Scanner sc2=new Scanner(System.in);
Bills bills=new Bills();
System.out.println("请输入类别：");
bills.setName(sc2.next());
System.out.println("请输入账户：");
bills.setAccount(sc2.next());
System.out.println("请输入收入支出类型：");
bills.setType(sc2.next());
System.out.println("请输入金额：：");
bills.setTotal(sc2.nextInt());
System.out.println("请输入时间：");
bills.setTime(sc2.next());
System.out.println("请输入备注：");
bills.setDesc(sc2.next());
billsList.add(bills);
System.out.println("财务添加成功！");
}
/**
* 三种查询
* 1、查询所有
* 2、按照时间区间来查询
* 3、按照收入和支出的类型来查询
*/
private static void select(){
System.out.println("随手记>>账务查询");
System.out.println("1、查询所有 2、按照时间区间来查询 3、按照收入和支出的类型来查询");
//创建扫描器
Scanner sc1=new Scanner(System.in);
int num=sc1.nextInt();
switch (num){
case 1:
selectAll();
break;
case 2:
selectByData();
break;
case 3:
selectByType();
break;
// default:
// System.out.println("亲，请重新输入选项：");
}
//展示上一级的主菜单
showMain();
}
private static void selectAll(){
System.out.println("查询所有");
print(billsList);
}
private static void selectByData(){
//创建一个时间格式化对象 [格式化器]
SimpleDateFormat format=new SimpleDateFormat("yyyy-MM-dd");
System.out.println("按照时间查询");
System.out.println("随手记>>账务查询>>按照时间查询");
//创建扫描器
Scanner sc1=new Scanner(System.in);
System.out.println("请输入开始时间：");
String start=sc1.next();
System.out.println("请输入结束时间：");
String end=sc1.next();
//stream 流
List<Bills> billsList1 = billsList.stream().filter(bills -> {
String time = bills.getTime();
//把字符串解析成具体时间
try {
Date startData = format.parse(start);
Date endData = format.parse(end);
Date timeData = format.parse(time);
if (timeData.before(endData) && timeData.after(startData)) {
return true;
}
} catch (ParseException e) {
e.printStackTrace();
}
return false;
}).collect(Collectors.toList());
print(billsList1);
}
private static void selectByType(){
System.out.println("按照类型查询");
System.out.println("随手记>>账务查询>>收入和支出类型");
System.out.println("请输入 收入或者支出");
//创建扫描器
Scanner sc1=new Scanner(System.in);
String type=sc1.next();
//收入还是支出
//筛选一下集合中type时支出的元素 stream筛选 collectCollectors.toList():将流转换为集合
List<Bills> billsList1 = billsList.stream().filter(bills -> {
String type1 = bills.getType();
return type1.equals(type);
}).collect(Collectors.toList());
print(billsList1);
//filter 过滤 true要，false不要
// stream.filter(bills -> {
// String type1= bills.getType();
// return type1.equals(type);
// });
}
public static void print(List<Bills> billsList){
System.out.println("ID\t\t类别\t\t\t账户\t\t\t类型\t\t金额\t\t\t\t时间\t\t\t\t备注");
for (int i = 0; i < billsList.size(); i++) {
Bills bills1=billsList.get(i);
System.out.println(i+1+"\t\t"+bills1.getName()+"\t\t"+bills1.getAccount()+"\t\t"+bills1.getType()
+"\t\t"+bills1.getTotal()+"\t\t"+bills1.getTime()+"\t\t"+bills1.getDesc());
}
}
}
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