正文
java简单银行代码,用java代码编写银行系统
提示：扫一扫查出行【扫一扫了解最新限行尾号】
复制提示
最简单的银行管理系统有利息算法的java简单代码
package com.nsu.java.base;
import java.util.Scanner;
public class homework {
public static void main(String[] args) {
double a=0.0115;
double b;
double d;
double c,f;
System.out.println("请输入您的存款金额：");
Scanner it=new Scanner(System.in);
d=it.nextDouble();
System.out.println("请输入您的存款期限：");
b=it.nextDouble();
c=d-d+d*a;
f=b*c;
System.out.println("您的预期收入为："+f);
}
}
建议把上面的包名改一下。
相关问答
Q1: JAVA 简单银行系统的代码
import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;
public class AccountDemo {
public static double MONEY = 0;// 初始化金额是100元。
public static void main(String[] args) {
final String USER_NAME = "zhangsan";// 用户名
final String PASSWORD = "123456";// 密码
while (true) {
System.out.print("请输入用户名：");
String user_name = getString();
System.out.print("请输入密码：");
String password = getString();
if (user_name != null user_name.equals(USER_NAME)
password != null password.equals(PASSWORD)) {
System.out.println("登陆成功！你要干什么？");
while (true) {
System.out.println("1：存款");
System.out.println("2：取款");
System.out.println("3：查询余额");
System.out.println("q：退出程序");
System.out.print("请选择：");
String userIn = getString();
int in = 0;
if (userIn != null userIn.equals("1")) {
in = Integer.parseInt(userIn);
} else if (userIn != null userIn.equals("2")) {
in = Integer.parseInt(userIn);
} else if (userIn != null userIn.equals("3")) {
in = Integer.parseInt(userIn);
} else if (userIn != null
userIn.trim().toUpperCase().equals("Q")) {
in = 4;
} else {
System.out.println("你输入的指令不正确！请重新输入。");
continue;
}
switch (in) {
case 1:
double add_money = 0;
while (true) {
System.out.print("请输入你要存入的金额：");
try {
add_money = Double.parseDouble(getString());
} catch (Exception e) {
System.out.println("金额输入不正确！");
continue;
}
break;
}
MONEY += add_money;
System.out.println("存入的金额是" + add_money
+ "\r\n请选择你要的操作：");
break;
case 2:
double money = 0;
while (true) {
System.out.print("请输入你要取出的金额：");
try {
money = Double.parseDouble(getString());
} catch (Exception e) {
System.out.println("金额输入不正确！");
continue;
}
if (money MONEY) {
System.out.println("取出的金额大于现有存款，请重新输入要取出的金额！");
continue;
}
break;
}
MONEY -= money;
System.out.println("取出的金额是" + money + "\r\n请选择你要的操作：");
break;
case 3:
System.out.println("你的余额是：" + MONEY + "\r\n请选择你要的操作：");
break;
case 4:
System.out.println("程序退出！");
return;
}
}
} else {
System.out.println("错误：用户名与密码不匹配！\r\n");
System.out.println("按任意键:重新输入用户名和密码。");
System.out.println("q:退出程序。");
System.out.print("请选择:");
String in = getString();
if (in.trim().toUpperCase().equals("Q")) {
break;
}
}
}
}
public static String getString() {
String str = null;
BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
try {
str = br.readLine();
} catch (IOException e) {
e.printStackTrace();
}
return str;
}
}
Q2: 用java语言编写一个小型的银行系统代码
private int balance = 0;
private String username = "A";
private String password = "B";
public void bank() {
Scanner scan = new Scanner(System.in);
String temp;
while (true) {
System.out.println("输入账号：");
if (scan.hasNext()) {
temp = scan.next();
if (temp.equals(username)) {
break;
} else {
System.out.println("输入错误");
}
}
}
while (true) {
System.out.println("输入密码：");
if (scan.hasNext()) {
temp = scan.next();
if (temp.equals(password)) {
break;
} else {
System.out.println("输入错误");
}
}
}
System.out.println("登录成功");
while (true) {
System.out.println("输入操作：");
if (scan.hasNext()) {
temp = scan.next();
switch (temp) {
case "存款":
int x = 0;
while (true) {
System.out.println("输入存款金额：");
if (scan.hasNextInt()) {
x = scan.nextInt();
break;
} else {
System.out.println("输入错误");
scan.next();
}
}
balance += x;
break;
case "取款":
int y = 0;
while (true) {
System.out.println("输入取款金额：");
if (scan.hasNextInt()) {
y = scan.nextInt();
if (balance y) {
System.out.println("余额不足");
continue;
}
break;
} else {
System.out.println("输入错误");
scan.next();
}
}
balance -= y;
break;
case "余额":
System.out.println("余额：" + balance);
break;
case "终止":
System.exit(0);
default:
System.out.println("未知操作");
}
}
}
