command

**dirtycash** · 12-03-2007, 11:38 PM

...............

**hardwired** · 12-04-2007, 12:25 AM

Java Code:

import java.util.*;

public class CashierTest
{
    public static void main(String[] args)
    {
        InputReader reader = new InputReader();
        Cashier cashier = new Cashier();
        cashier.generateResponse(Cashier.CREATE, reader);
    }
}

class Cashier
{
    HashMap<String, Account> accounts;
    final static String CREATE = "create";
    
    public Cashier()
    {
        accounts = new HashMap<String, Account>();
    }

    public void generateResponse(String word, InputReader reader)
    {
        if(word.equals(CREATE))
        {
            String email = reader.getText("enter email address: ");
            String password = reader.getText("enter password: ");
            if(accounts.containsKey(email)) {
                System.out.println("The account already exists");
            } else {
                Account account = new Account(email, password);
                accounts.put(email, account);
                System.out.println("Your account has been created");
            }
        }
    }
}


class InputReader
{
    Scanner scanner = new Scanner(System.in);

    public String getText(String prompt)
    {
        System.out.println(prompt);
        return scanner.nextLine();
    }

    public int getNumber(String prompt)
    {
        System.out.println(prompt);
        return scanner.nextInt();
    }
}

**dirtycash** · 12-04-2007, 12:37 AM

why is this needed?

class InputReader
{
Scanner scanner = new Scanner(System.in);

public String getText(String prompt)
{
System.out.println(prompt);
return scanner.nextLine();
}

public int getNumber(String prompt)
{
System.out.println(prompt);
return scanner.nextInt();
}

**hardwired** · 12-04-2007, 01:27 AM

why is this needed?
Because an object of type InputReader is specified in the method signature of this method:

Java Code:

public void generateResponse(String word, InputReader reader)

So we need an InutReader class to pass as an argument to the method.

**dirtycash** · 12-04-2007, 01:30 AM

Java Code:

import java.io.InputStream;
import java.util.Scanner;
import java.util.*;

/**
 * 
 */
public class InputReader
{
    private Scanner reader;
     Scanner in=new Scanner(System.in); 
   
    //scanner object to get input from keyboard later

    /**
     * Create a new InputReader that reads text from the text terminal.
     */
    public InputReader()
    {
        reader = new Scanner(System.in);
    }
    
    /**
     * Create a new InputReader that reads text from an input stream.
     * @param in An input stream to read from.
     */
    public InputReader(InputStream in) {
        reader = new Scanner(in);
    }

does any of this code do that already by any chance?