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//PM7_2_2.java
import java.io.*;
import java.util.*;
public class PM7_2_2 {
static Account[] customer; //
客戶資料的物件陣列
static int k=0; //
紀錄儲存筆數
static Scanner keyin; //
鍵盤輸入物件
static String file_R = "deposit.data";
public static void main(String args[]) throws
IOException {
keyin = new Scanner(System.in);
customer = new Account[50];
mainMenu();
int select = keyin.nextInt();
keyin.nextLine();
while (select !=8) {
switch (select) {
case 1: /*
讀入帳戶資料
*/
readData();
break;
case 2: /*
新建立帳戶
*/
addAcc();
break;
case 3: /*
顯示所有帳戶
*/
dispData();
break;
case 4: /*
提款作業
*/
recMoney();
break;
case 5: /*
存款作業
*/
saveMoney();
break;
case 6: /*
查詢餘額
*/
checkMoney();
break;
case 7: /*
儲存帳戶資料
*/
saveData();
break;
default:
System.out.printf("錯誤輸入,
請重新選擇
!!\n");
}
mainMenu();
select = keyin.nextInt();
keyin.nextLine();
}
}
/*
顯示主選單
*/
public static void mainMenu() {
System.out.printf("\n==
藝術銀行
活期儲蓄系統
==\n");
System.out.printf("(1)
讀入所有帳戶\t");
System.out.printf("(2)
建
立
新帳戶\t");
System.out.printf("(3)
顯示所有帳戶\n");
System.out.printf("(4)
帳戶提款作業\t");
System.out.printf("(5)
帳戶存款作業\t");
System.out.printf("(6)
帳戶查詢餘額\n");
System.out.printf("(7)
儲
存
資
料\t");
System.out.printf("(8)
離
開
系
統\n");
System.out.printf("請選擇工作項目
=> ");
}
/*
讀取
deposit.data
檔案資料,
再存入
customer
物件陣列中
*/
public static void readData() throws IOException {
String inData;
String ID_STR1;
int money;
File fileID = new File(file_R); //
產生輸入檔案物件
if (fileID.exists()) {
BufferedReader data = new BufferedReader(new
FileReader(fileID));
while ((inData=data.readLine()) != null) {
Scanner s = new
Scanner(inData).useDelimiter("\t");
customer[k] = new Account();
ID_STR1 = s.next();
if (customer[k].writeID(ID_STR1) == 0) {
System.out.printf("%s
帳戶不對\n",
ID_STR1);
continue;
}
customer[k].name = s.next();
money = s.nextInt();
customer[k].saveM(money);
k = k +1;
}
data.close();
}
else {
System.out.printf("%s
檔案不存在,
請先建立它\n",
file_R);
System.out.printf("按任何鍵離開
=>");
keyin.nextLine();
System.exit(1);
}
}
public static void addAcc() {
String ID_Str;
customer[k] = new Account();
System.out.printf("***建立新帳戶***\n請輸入姓名=>");
customer[k].name = keyin.nextLine();
System.out.printf("請輸入帳號(12
位數字)
=>");
ID_Str = keyin.nextLine();
int flag = customer[k].setID(ID_Str);
if (flag == 0)
return;
System.out.printf("請輸入存款金額
=>");
int money = keyin.nextInt();
int balance = customer[k].saveM(money);
System.out.printf("餘額
= %d\n", balance);
k = k + 1;
}
/*
顯示所有帳戶
*/
public static void dispData() {
System.out.printf("==
列印所有帳戶資料
==\n");
System.out.printf("帳號\t\t姓名\t餘額\n");
for (int i=0; i<k; i++) {
int[] ID = customer[i].getID();
for (int j=0; j<13; j++)
System.out.printf("%d", ID[j]);
System.out.printf("\t");
System.out.printf("%s\t", customer[i].name);
System.out.printf("%d\n", customer[i].checkM());
}
}
/*
檢查帳號
*/
public static int checkAcc(String ID_Str) {
int[] ID = new int[13];
int[] ID_R = new int[13];
int acc, flag=0;
Scanner s = new Scanner(ID_Str).useDelimiter("");
for (int i=0; i<13; i++)
ID[i] = s.nextInt();
for (acc=0; acc<k; acc++) {
ID_R = customer[acc].getID();
if (Arrays.equals(ID, ID_R)) {
flag =1;
break;
}
}
if (flag == 0) {
System.out.printf("無此帳號，請離開
!!\n");
return -1;
}else {
return acc;
}
}
/*
存款作業
*/
public static void saveMoney() {
int[] ID = new int[13];
int flag;
System.out.printf("請輸入提款帳號
=>");
String ID_Str = keyin.nextLine();
int acc = checkAcc(ID_Str);
if (acc < 0) {
System.out.printf("無此帳號，請離開
!!\n");
return;
}
System.out.printf("請輸入存款金額
=>");
int money = keyin.nextInt();
int m = customer[acc].saveM(money);
String name = customer[acc].name;
System.out.printf("帳戶：%s目前餘額為：%d\n",
name, m);
}
/*
提款作業
*/
public static void recMoney(){
System.out.printf("請輸入存款帳號
=>");
String ID_Str = keyin.nextLine();
int acc = checkAcc(ID_Str);
if (acc < 0) {
System.out.printf("無此帳號，請離開
!!\n");
return;
}
System.out.printf("請輸入提款金額
=>");
int money = keyin.nextInt();
int m = customer[acc].recM(money);
if(m <0){
System.out.printf("存款不足、請離開
!!\n");
return;
}
String name = customer[acc].name;
System.out.printf("帳戶：%s目前餘額為：%d\n",
name, m);
}
/*
查詢餘額
*/
public static void checkMoney(){
System.out.printf("請輸入存款帳號
=>");
String ID_Str = keyin.nextLine();
int acc = checkAcc(ID_Str);
if (acc < 0) {
System.out.printf("無此帳號，請離開
!!\n");
return;
}
int m = customer[acc].checkM();
String name = customer[acc].name;
System.out.printf("帳戶：%s目前餘額為：%d\n",
name, m);
}
/*
儲存資料
*/
public static void saveData() throws IOException {
BufferedWriter outData = new BufferedWriter(new
FileWriter(file_R));
int[] ID_R = new int[13];
System.out.printf("**
將儲存檔案
(depoist.dada) **\n");
for (int i=0; i<k; i++) {
long temp=0;
ID_R = customer[i].getID();
for(int j=0; j<13; j++) {
temp = temp + ID_R[j];
temp = temp * 10;
}
temp = temp /10;
outData.write(temp + "\t");
outData.write(customer[i].name + "\t");
outData.write(customer[i].checkM() + "\t");
outData.newLine();
}
outData.close();
System.out.printf("*****
儲存完畢
****\n");
}
} |
