开学测试之—

开学测试之——ATM

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package ATM;
 
//信1705-2 20173568 李泽宇
 
import java.util.*;
import java.io.File;
import java.io.FileInputStream;
import java.io.FileOutputStream;
 
import java.io.IOException;
 
public class Account {
 
 public static List<Account> accountlist=new LinkedList<Account>();
 private String accountID;
 private String accountname;
 private String operatedate;
 private int operatetype;
 private String accountpassword;
 private int accountbalance;
 private int amount;
public Account() {};
public  Account(String accountID,String accountname,String operatedate,int operatetype,String accountpassword,int accountbalance) {
    this.accountID=accountID;
    this.accountname=accountname;
    this.operatedate=operatedate;
    this.operatetype=operatetype;
    this.accountpassword=accountpassword;
    this.accountbalance=accountbalance;
}
public Account(String accountID,String accountname,String accountpassword,int accountbalance) {
    this.accountID=accountID;
    this.accountname=accountname;
    this.accountpassword=accountpassword;
    this.accountbalance=accountbalance;
}
public Account(String accountID,String accountname,String operatedate,int operatetype,int amount) {
    this.accountID=accountID;
    this.accountname=accountname;
    this.operatedate=operatedate;
    this.operatetype=operatetype;
    this.amount=amount;
}
public  String get_accountID() {
    return accountID;
}
public String get_accountname() {
    return accountname;
}
public String get_operatedate() {
    return operatedate;
}
public int get_operatetype() {
    return operatetype;
}
public String get_accountpassword() {
    return accountpassword;
}
public int get_accountbalance() {
    return accountbalance;
}
public int get_amount() {
    return amount;
}
public void set_accountID(String accountID) {
    this.accountID=accountID;
}
public void set_accountname(String accountname) {
    this.accountname=accountname;
}
public void set_operatedate(String operatedate) {
    this.operatedate=operatedate;
}
public void set_operatetype(int type) {
    this.operatetype=type;
}
public void set_accountpassword(String password) {
    this.accountpassword=password;
}
public void set_accountbalance(int balance) {
    this.accountbalance=balance;
}
public void set_amount(int amount) {
    this.amount=amount;
}
public  static void  addaccount (String accountID,String accountname,String accountpassword,int accountbalance) {
     accountlist.add(new Account(accountID,accountname,accountpassword,accountbalance));
}
public static void file_in() {
File file0 = new File("F:/eclipse/ATM", "accountinformation.txt"); 
addaccount("20173450","zhangqiang","000001",900);//创建第一个账户并放入list中
addaccount("20173451","zhanghao","000002",1000);//创建第二个账户
addaccount("20173452","sunyang","000003",700);//创建第三个账户
addaccount("20173453","lihao","000004",1200);//创建第四个账户
addaccount("20173454","liulei","000005",8500);//创建第五个账户//创建文件对象
try {
    if (!file0.exists()) {               //如果文件不存在则新建文件
        file0.createNewFile();           
 
    }
    FileOutputStream output = new FileOutputStream(file0);
    for(int j=0;j<accountlist.size();j++) {
        byte[] bytes0 =accountlist.get(j).accountID.getBytes();
        byte[] bytes1 =accountlist.get(j).accountname.getBytes();
        byte[] bytes2 =accountlist.get(j).accountpassword.getBytes();
    output.write(bytes0);
    output.write(bytes1);
    output.write(bytes2);
    output.write(accountlist.get(j).accountbalance);
    }
    output.close();
            }catch (IOException e) {
                // TODO Auto-generated catch block
                e.printStackTrace();
在一个类中建成的文件，先把之前做的扒了过来，后面会在寒假完善
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