bank

import java.util.*;

public class Bank {
    private final ArrayList accounts = new ArrayList();
    /** Metoden addAcconut tar emot ett konto och lägger in det i sist i samlingen
     *
     * @param a
     */

    public void addAccount(Account a){
    accounts.add(a);
    }
    /**Metoden findAccount söker efter ett konto m.a.p kontonummer
     * metoden returnerar första kontot med korrekt kontonumer
     * finnns dubletter. Metoden returnerar null om inget konto finns
     * @param accountNo
     * @return
     */
public Account findAccount(int accountNo){

    for(int i=0 ;  i<accounts.size() ; i++){
    Account temp = (Account)accounts.get(i);

    if(temp.accountNo()==accountNo){
    return temp;
    }
}
    return null;
}
}




public class BankSystem {

    /**
     * @param args the command line arguments
     */
       public static void main(String[] args) {
        //Bank b = new Bank();
       // Gui  gui = new Gui(b);

// TODO code application logic here
Account a1 = new Account ("eva", 4500);
Account a2 = new Account ("liam", 3000);
Account a3 = new Account ("Stinga",67000);

Bank banken = new Bank();


banken.addAccount(a1);
banken.addAccount(a2);
banken.addAccount(a3);
System.out.println(banken.findAccount(1001));
System.out.println(banken.findAccount(1002));
System.out.println(banken.findAccount(1003));



 Gui  gui = new Gui(banken);

}  }




public class Account {
    private double balance;
    private int accountNo;
    private String holder;
    private static int counter = 1000;

public Account(String holder, double initBalance){
    this.holder = holder;
    this.balance = initBalance;
    accountNo = ++counter;

    }
public void deposit(double amount){
    this.balance += amount;
}
public void withdraw(double amount){
    if(balance > amount){
this.balance -= amount;
    }
}

public int accountNo(){
return accountNo;
        }
public String holder(){
return holder;

    }
public double balance(){
return balance;
}
public String toString(){
return "name: " + holder   + "\n"+
        "accountNo: " + accountNo + "\n"+
        "balance: " + balance + "\n" +
        "-------------------";
        }
}



import java.awt.*;
import java.awt.event.*;
import javax.swing.*;
public class Gui {
    private JFrame frame = new JFrame("Crime Bank");
    private JPanel background, centerPanel,southPanel,menuBar;
    private JLabel l_accountNo,l_name,l_deposit,l_withdraw,l_balance;
    private JTextField tf_accountNo, tf_name, tf_deposit,tf_withdraw,tf_balance;
    private JButton b_find,b_deposit,b_withdraw,b_clear,b_create;
    private Bank banken;
    private JMenuBar baren;
    private JMenu menu;
    private JMenuItem i_item,i_accountNo,i_deposit,i_withdraw,i_clear,i_find;
    private Account findAcc;




public Gui(Bank b){
    banken = b;
    //this.banken = banken;
    baren = new JMenuBar();
    menu = new JMenu("file");
    i_item = new JMenuItem("close");
    i_clear = new JMenuItem("clear");
    i_find = new JMenuItem("find");
    menu.add(i_clear);
    baren.add(menu);
    menu.add(i_item);
    menu.add(i_find);
    this.frame.setJMenuBar(baren);
        background = new JPanel();
        background.setLayout(new BorderLayout());
        centerPanel = new JPanel();
              background.setBorder(BorderFactory.createLineBorder(Color.RED,9, false));

        centerPanel.setLayout((new GridLayout(5,2)));
        southPanel = new JPanel();
        southPanel.setLayout((new GridLayout(3,2)));
        l_accountNo = new JLabel("accountNo: ");
        l_name = new JLabel("name:");
        l_deposit = new JLabel ("deposit:");
        l_withdraw = new JLabel("withdraw:");
        l_balance = new JLabel("balance:");
        b_find = new JButton("FIND");
        b_deposit = new JButton("DEPOSIT");
        b_withdraw = new JButton("WITHDRAW");
        b_clear = new JButton("CLEAR");
        b_create = new JButton("CREATE");
        southPanel.add(b_deposit);
        southPanel.add(b_find);
        southPanel.add(b_withdraw);
        southPanel.add(b_clear);
        southPanel.add(b_create);

        //southPanel.setBorder(BorderFactory.createLineBorder(Color.LIGHT_GRAY,3, true));
        //southPanel.setBorder(BorderFactory.createLineBorder(Color.pink));



        tf_accountNo= new JTextField(12);
        tf_name  = new JTextField(12);
        tf_deposit= new JTextField(12);
        tf_withdraw= new JTextField(12);
        tf_balance= new JTextField(12);
           centerPanel.add(l_accountNo);
           centerPanel.add(tf_accountNo);
           centerPanel.add(l_name);
           centerPanel.add(tf_name);
           centerPanel.add(l_balance);
           centerPanel.add(tf_balance);
           centerPanel.add(l_deposit);
           centerPanel.add(tf_deposit);
           centerPanel.add(l_withdraw);
           centerPanel.add(tf_withdraw);
           background.add(centerPanel, BorderLayout.CENTER);
           background.add(southPanel, BorderLayout.SOUTH);
           frame.setContentPane(background);
           frame.pack();
           frame.setVisible(true);
           ClearHandler cl = new ClearHandler();
           FindHandler fh = new FindHandler();

           this.b_clear.addActionListener(cl);
           this.i_clear.addActionListener(cl);
           this.b_withdraw.addActionListener(new WH());
           this.b_deposit.addActionListener(new DH());
           this.b_find.addActionListener(fh);
           this.i_find.addActionListener(fh);
           this.b_create.addActionListener(new Create());
           this.banken = banken;

}
private class ClearHandler implements ActionListener{
public void actionPerformed(ActionEvent ae){
   tf_accountNo.setText("");
   tf_name.setText("");
   tf_deposit.setText("");
   tf_withdraw.setText("");
   tf_balance.setText("");

}
    }

private class WH implements ActionListener{
    public void actionPerformed(ActionEvent ae){
        System.out.println("hej");
        String sWithdraw = tf_withdraw.getText();
        double amount = Double.parseDouble(sWithdraw);
        findAcc.withdraw(amount);
        tf_balance.setText("" + findAcc.balance());

    }
}
private class DH implements ActionListener{
    public void actionPerformed(ActionEvent ae){
         System.out.println("hej");
         String sDeposit = tf_deposit.getText();
         double amount = Double.parseDouble(sDeposit);
         findAcc.deposit(amount);
         tf_balance.setText("" + findAcc.balance());
         System.out.println("Deposit" + amount);

      // double amount = Double.parseDouble (tf_deposit.getText());
       // findAcc.deposit(23);
     //   tf_balance.setText("" + findAcc.balance());
}  }
private class FindHandler implements ActionListener{
    public void actionPerformed(ActionEvent ae){
        System.out.println("hej");
        String sAccNo = tf_accountNo.getText();
        int accNo = 0;
        try{
         accNo = Integer.parseInt(sAccNo);

        }catch (NumberFormatException nfe){
        JOptionPane.showMessageDialog(frame, "skriv in siffror som kontonummer");

        return;}
        Account findAcc = banken.findAccount(accNo);
        if(findAcc!=null){
             tf_name.setText(findAcc.holder());
             tf_balance.setText(""+findAcc.balance());
        }else JOptionPane.showMessageDialog(frame, "kontot finns ej! ");
    }
}
private class Create implements ActionListener{
    public void actionPerformed(ActionEvent ae){
        System.out.println("CREATE");
        String holder = tf_name.getText();
        double amount = Double.parseDouble(tf_deposit.getText());
        Account create = new Account(holder, amount);
        tf_accountNo.setText("" + create.accountNo());
        banken.addAccount(create);
        tf_deposit.setText("");
        tf_balance.setText("" + create.balance());


    }
} }