2019獨(dú)角獸企業(yè)重金招聘Python工程師標(biāo)準(zhǔn)>>>

package cn.atm; import java.text.SimpleDateFormat; import java.util.Date; import java.util.Scanner; public class AtmDemo { public static void main(String[] args) { new AtmDemo(); } Scanner sc = new Scanner(System.in); String name; String pwd; int money= 0; String history = ""; public AtmDemo() { while (true) { System.out.println("1:注冊(cè)\n2:登錄\n0：退出"); String op = sc.nextLine(); switch (op) { case "1": reg(); break; case "2": login(); break; case "0": System.out.println("再見(jiàn)"); default: System.out.println("請(qǐng)輸入正確的選擇"); break; } } } public void reg() { System.out.println("請(qǐng)?jiān)O(shè)置你的登錄名:"); name = sc.nextLine(); System.out.println("請(qǐng)?jiān)O(shè)置登錄的密碼:"); pwd = sc.nextLine(); System.out.println("歡迎：注冊(cè)成功！"); } public void login() { System.out.println("請(qǐng)輸入你的登錄名:"); String nu = sc.nextLine(); System.out.println("請(qǐng)登輸入登錄密碼:"); String pd = sc.nextLine(); if (name.equals(nu) && pwd.equals(pd)) { System.out.println("登錄成功！"); operation(); } else { System.out.println("輸入的姓名或者密碼有誤"); } } public void operation() { one:while (true) { System.out.println("1:存錢\n2:取錢\n3:顯示余額\n4:交易記錄\n0:退出"); String op = sc.nextLine(); if (op.equals("1")) { savemoney(); } else if (op.equals("2")) { withdraw(); } else if (op.equals("0")) { break one; } else if (op.equals("4")) { history(); } else if (op.equals("3")) { balance(); } } } private void balance() { // TODO Auto-generated method stub System.out.println("余額：\t " + this.money); } private void history() { // TODO Auto-generated method stub System.out.println("\t\t時(shí)間\t\t操作\t\t金額\t\t余額\t\t"); System.out.println(history); } private void withdraw() { // TODO Auto-generated method stub System.out.println("請(qǐng)輸入你的取款金額:"); String m = sc.nextLine(); // 判斷是否輸入的是int類型 if (m.matches("\\d+")) {// 使用正則表達(dá)式1~N個(gè) // 轉(zhuǎn)成 int money = Integer.parseInt(m); ? ?if (this.money >= money) { this.money -= money; System.out.println("取款成功"); history += "\n" + dt() + "\t\t取錢\t\t" + money + "\t\t" + this.money; } else { System.out.println("余額不足，請(qǐng)重新操作"); operation(); } } } private void savemoney() { // TODO Auto-generated method stub System.out.println("請(qǐng)輸入你的存款金額:"); String m = sc.nextLine(); // 判斷是否輸入的是int類型 if (m.matches("\\d+")) {// 使用正則表達(dá)式1~N個(gè) // 轉(zhuǎn)成 int money = Integer.parseInt(m); if(money%100==0) this.money += money; System.out.println("保存成功了"); history += "\n" + dt() + "\t\t存錢\t\t" + money + "\t\t" + this.money; } else { System.out.println("請(qǐng)輸入正確的金額"); } } public String dt() { SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd ?HH:mm：ss"); String str = sdf.format(new Date()); return str; } }

轉(zhuǎn)載于:https://my.oschina.net/dtz/blog/530551

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