这是一个关于银行取款机的程序，觉得知识有限，请高手们帮我改改，让我的程序更加的完善！！谢谢各位！！！！！
// Cash.java
// A Miniproject in Bank System
//import extension packages
import javax.swing.*;
public class Cash
{
public static void main( String args[] )
{
/* Initializer list specifies number of element and
value for each element */
int password[] = { 1111,2222,3333,4444,5555,6666 };
int supe; // int first value
int cash = 8888; // number of money
int money = 0; // int third value
int i = 1; // number of i
// A do/while loop
do
{
// String a value and read in password from user
String supesum =
JOptionPane.showInputDialog( "Welcome to use this Cash Systerm!\n"+
"Now please Enter your password :" );
// convert numbers from type String to type int
supe = Integer.parseInt( supesum );
// A if/else control structer
if ( supe==password[0]
|| supe==password[1]
|| supe==password[2]
|| supe==password[3]
|| supe==password[4]
|| supe==password[5] )
break;
else
JOptionPane.showMessageDialog(null,"You put in the password is Wrong!\n"+
"Please try again" );
}
while( i>0 );
//show the option table for user to choose
//set a loop to see whether the choise is 1, 2 or 3
int choise; // int a vlaue
while( i==1 )
{
do
{
// String a value and read in choise from user
String inputChoise =
JOptionPane.showInputDialog ( "\tEnter your choise :\n" +
"\t\t 1 Check your Cash-card'cash\n" +
"\t\t 2 Pick out your cash\n" +
"\t\t 3 Put in your cash\n" +
"\t\t 4 EXIT" );
// convert number from type string to type int
choise = Integer.parseInt( inputChoise );
switch( choise )
{
case 1 :
JOptionPane.showMessageDialog( null,"Your Cash-Card have got " + cash );
break;
case 2 :
// String a value and read in money from user
String out =
JOptionPane.showInputDialog( "How much do you want to pick out ?\n"+
"Please input the cash number in the blank dialog!" );
money = Integer.parseInt( out );
cash = cash - money;
break;
case 3 :
// String a value and read in money from user
String in =
JOptionPane.showInputDialog( "How much do you want to put in ?\n"+
"Please input the cash number in the blank dialog!" );
money = Integer.parseInt( in );
cash = cash + money;
break;
case 4 :
JOptionPane.showMessageDialog( null, "Thank you for use this Cash Systerm!" );
System.exit(0);
}
}
while( choise<1 || choise>4 );
} //end the loop
System.exit(0);
} // end method close
} // end class Bank
