customertd.java

银行系统

//td的客户数据存储

import java.io.*;
import java.util.*;

public class Customertd{
	public static void main(String[] args)throws Exception{
		Vector v = new Vector();
				
		System.out.println("当前的客户数为" + v.size());
	  String s=javax.swing.JOptionPane.showInputDialog("请输入要添加的客户数：","");
	  int count=Integer.parseInt(s);	
	  String ID=null;
		for(int i=1;i<=count;i++){
			String str=i+"";
			if(i/10==0)    ID="t00".concat(str);
			else if((i/10!=0)&&(i/100==0))      ID="t0".concat(str);
			else   ID="t".concat(str);
			String PASSWORD="123456";
			double MONEY=100;
			String NAME="tt";
			Csm t = new Csm(ID, PASSWORD,MONEY, NAME);	
			v.add(t);

			System.out.println("已经添加"+i+"客户信息");
		}
	
		RandomAccessFile raf2 = new RandomAccessFile("e:\\TD.dat", "rw");		
		for(int index=0; index<v.size(); index++)
		{
		
			Csm t = (Csm)v.get(index);
			raf2.writeUTF(t.getID());
			raf2.writeUTF(t.getPassword());
			raf2.writeDouble(t.getMoney());
			raf2.writeUTF(t.getName());			
		}
		
		raf2.close();	
	}
}