这是文件读取问题索引1 id的arraylist存在＆＃34; 22222＆＃34;但是这个条件if(get.equals(low.pid))没有读取1索引处的id它会读取索引2的值。
如果我打印witharraylis.get(i) when value of i=1 it show the value of index 2. When I print witharraylist.get（i）`显示id 30的值，而在索引1中id为20的值。任何人都可以告诉我代码中的问题是什么？
//登录文件
import java.util.*;
import java.io.*;
class Login{
private String name;
private String id;
private String loginname;
private String loginid;
static String setid;
int j=0;
int k=0;
ArrayList a1=new ArrayList();
public void setLoginId(String st1)
{
setid=st1;
}
public void loginNameId()
{
String adminname="muhammad ali";
String adminpassword="789123";
Scanner reader=new Scanner(System.in);
System.out.println("Enter your login name");
loginname=reader.nextLine();
System.out.println("Enter your pin code");
loginid=reader.nextLine();
if(loginname.equals(adminname)&&loginid.equals(adminpassword))
{
System.out.println("password match");
k++;
}
else
{
String token[]=null;
try{
FileReader fr=new FileReader("login.txt");
BufferedReader br=new BufferedReader(fr);
String fileread=br.readLine();
while(fileread!=null)
{
token=fileread.split(",");
name=token[0];
id=token[1];
fileread=br.readLine();
LoginInfo obj1=new LoginInfo(name,id);
a1.add(obj1);
}
br.close();
fr.close();
}
catch(IOException ex)
{
System.out.println(ex);
}
}
}
public void search()
{
for(int i=0;i<a1.size();i++)
{
LoginInfo p;
p=(LoginInfo)a1.get(i);
if(loginname.equals(p.cusname)&& loginid.equals(p.cusid))
{
String s=loginid;
setLoginId(s);
Customer call=new Customer();
call.displayMenu();
j++;
}
}
if(j==0&&k==0)
{
System.out.println("InCorrect password");
}
}
}
Customer file
import java.util.*;
import java.io.*;
public class Customer{
static String cavailablebal;
Scanner reader=new Scanner(System.in);
ArrayList witharraylist=new ArrayList();
public void displayMenu()
{
System.out.println ("1----Withdraw Cash");
System.out.println ("2----Cash Transfer");
System.out.println ("3----Deposit Cash");
System.out.println ("4----Display Balance");
System.out.println ("5----Exit ");
System.out.println("Enter your choice");
char choice1=reader.next().charAt(0);
switch(choice1)
{
case'1':
withDrawal();
break;
}
}//end displayMenu
public void withDrawal()
{
String id,accountid,name,type,pamount,status;
String actualbal;
char choice1,choice2,confirm;
int withdrawalbal,availablebal;
int cactualbal;
Login obj2=new Login();
try
{
FileReader fr=new FileReader("account.txt");
BufferedReader br=new BufferedReader(fr);
String fileread=br.readLine();
String tokens[];
while (fileread!=null)
{
tokens=fileread.split(",");
if(tokens.length>=6)
{
id=tokens[0];
accountid=tokens[1];
name=tokens[2];
type=tokens[3];
pamount=tokens[4];
status=tokens[5];
fileread=br.readLine();
LoginInfo lo=new LoginInfo(id,accountid,name,type,pamount,status);
witharraylist.add(lo);
}
else
{
System.out.println("wrong format");
}
fileread=br.readLine();
}
System.out.println("1----Fast Cash");
System.out.println("2----Normal Cash");
System.out.println("3----Exit");
System.out.println("Enter your Choice:");
choice1 = reader.next().charAt(0);
switch(choice1)
{
case'1':
System.out.println("1----500");
System.out.println("2----1000");
System.out.println("3----2000");
System.out.println("4----5000");
System.out.println("5----10000");
System.out.println("6----15000");
System.out.println("7----20000 ");
System.out.println("Select one of the denominations of money:");
choice2 = reader.next().charAt(0);
if(choice2=='1')
{
System.out.println("Are you sure you want to withdraw Rs.500 (Y/N)?");
confirm = reader.next().charAt(0);
if (confirm=='y'||confirm=='Y')
{
String get=obj2.setid;
for(int i=0;i<witharraylist.size();i++)
{
LoginInfo low=(LoginInfo)witharraylist.get(i);
if(get.equals(low.pid))
{
withdrawalbal=500;
actualbal=low.amount;
cactualbal=Integer.parseInt(actualbal);
availablebal=cactualbal-withdrawalbal;
cavailablebal=Integer.toString(availablebal);
System.out.println("Your Available balance:"+cavailablebal);
witharraylist.set(i,low);
writeValues();
}
}
}
else
{
System.out.println("Transfer not successfully");
withDrawal();
}
}
break;
}
br.close();
fr.close();
}
catch(IOException ex)
{
System.out.println(ex);
}
}
public void writeValues()
{
try{
String line;
FileWriter fw=new FileWriter("account.txt");
PrintWriter pw=new PrintWriter(fw);
for(int i=0;i<witharraylist.size();i++){
LoginInfo wr=(LoginInfo)witharraylist.get(i);
line=wr.pid+","+wr.accountid+","+wr.name+","+wr.type+","+wr.amount+","+wr.status;
pw.println(line);
}
pw.flush();
fw.close();
pw.close();
}catch(IOException ex)
{
System.out.println(ex);
}
}
}
//login info file
import java.util.*;
import javax.swing.*;
public class LoginInfo
{
String cusname;
String cusid;
String name;
String pid;
String accountid;
String status;
String type;
String amount;
public LoginInfo(String name,String id)
{
this.cusname=name;
this.cusid=id;
}
public LoginInfo(String id,String accountid,String name,String type,String amount,String status)
{
this.pid=id;
this.accountid=accountid;
this.name=name;
this.type=type;
this.amount=amount;
this.status=status;
}
}
// login.txt
zeshaan,11111
nadeem,22222
ali waqar,33333
waseem,44444
jawad,55555
//Account.txt file
11111,10,zeshaan,current,3500,active
22222,20,nadeem,saving,44500,active
33333,30,ali waqar,saving,44500,active
44444,40,waseem,saving,44500,active
55555,50,waseem,saving,44500,active
66666,60,waseem,saving,44500,active
77777,70,waseem,saving,44500,active
答案 0 :(得分：0)
我一次又一次地审核您的代码。您的程序可能将两行.txt文件视为一个并跳过第二个loginInfo，因为您只检查标记[]的前6个索引。只有可能的解释是您的account.text文件格式不符合您的说明。也许一条线被错误地格式化或其他东西。请检查.txt文件。