library

import java.util.*;

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

    public void addBook(Book b){
    books.add(b);
    }
    /**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 isbnNo
     * @return
     */
public Book findBook(String isbnNo){

    for(int i=0 ;  i<books.size() ; i++){
    Book temp = (Book)books.get(i);

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





public class LibrarySystem {

    /**
     * @param args the command line arguments
     */
    public static void main(String[] args) {
        // TODO code application logic here
        Book b1 = new Book("Tures äventyr", "234234234",0001);
        Book b2 = new Book("Solskensdalen", "12313123",0002);
        Book b3 = new Book("Wikipedia vol 1", "123123123",0003);

        Library libraryN =new Library();

        libraryN.addBook(b1);
        libraryN.addBook(b2);
        libraryN.addBook(b3);
        System.out.println(libraryN.findBook(0001));
        System.out.println(libraryN.findBook(0002));
        System.out.println(libraryN.findBook(0003));


         Gui gui=new Gui(libraryN);
    }

}






public class Book {
    private int storage;
    private String isbnNo;
    private String title;
    private static int counter = 0001;

public Book(String holder, String initStorage){
    this.title = title;
    this.storage = initStorage;
    isbnNo = ++counter;

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

public int isbnNo(){
return isbnNo;
        }
public String title(){
return title;

    }
public double storage(){
return storage;
}
public String toString(){
return "title: " + title   + "\n"+
        "isbnNo: " + isbnNo + "\n"+
        "balance: " + storage + "\n" +
        "-------------------";
        }
}




import java.awt.*;
import java.awt.event.*;
import javax.swing.*;
public class Gui {
    private JFrame frame = new JFrame("Budget library");
    private JPanel background, centerPanel,southPanel,menuBar;
    private JLabel l_isbnNo,l_title,l_rebound,l_lend,l_storage;
    private JTextField tf_isbnNo, tf_title, tf_rebound,tf_lend,tf_storage;
    private JButton b_find,b_rebound,b_lend,b_clear,b_addBook;
    private Library libraryL;
    private JMenuBar baren;
    private JMenu menu;
    private JMenuItem i_item,i_isbnNo,i_rebound,i_lend,i_clear,i_find;
    private Book findBook;




public Gui(Library L){
    libraryL = L;
    //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_isbnNo = new JLabel("accountNo: ");
        l_title = new JLabel("name:");
        l_rebound = new JLabel ("deposit:");
        l_lend = new JLabel("withdraw:");
        l_storage = new JLabel("balance:");
        b_find = new JButton("FIND");
        b_rebound = new JButton("DEPOSIT");
        b_lend = new JButton("WITHDRAW");
        b_clear = new JButton("CLEAR");
        b_addBook = new JButton("CREATE");
        southPanel.add(b_rebound);
        southPanel.add(b_find);
        southPanel.add(b_lend);
        southPanel.add(b_clear);
        southPanel.add(b_addBook);



        tf_isbnNo= new JTextField(12);
        tf_title  = new JTextField(12);
        tf_rebound= new JTextField(12);
        tf_lend= new JTextField(12);
        tf_storage= new JTextField(12);
           centerPanel.add(l_isbnNo);
           centerPanel.add(tf_isbnNo);
           centerPanel.add(l_title);
           centerPanel.add(tf_title);
           centerPanel.add(l_storage);
           centerPanel.add(tf_storage);
           centerPanel.add(l_rebound);
           centerPanel.add(tf_rebound);
           centerPanel.add(l_lend);
           centerPanel.add(tf_lend);
           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_lend.addActionListener(new WH());
           this.b_rebound.addActionListener(new DH());
           this.b_find.addActionListener(fh);
           this.i_find.addActionListener(fh);
           this.b_addBook.addActionListener(new addBook());
           this.libraryL = libraryL;

}
private class ClearHandler implements ActionListener{
public void actionPerformed(ActionEvent ae){
   tf_isbnNo.setText("");
   tf_title.setText("");
   tf_rebound.setText("");
   tf_lend.setText("");
   tf_storage.setText("");

}
    }

private class WH implements ActionListener{
    public void actionPerformed(ActionEvent ae){
        System.out.println("hej");
        String sLend = tf_lend.getText();
        double amount = Double.parseDouble(sLend);
        findB.lend(amount);
        tf_storage.setText("" + findB.storage());

    }
}
private class DH implements ActionListener{
    public void actionPerformed(ActionEvent ae){
         System.out.println("hej");
         String sRebound = tf_rebound.getText();
         double amount = Double.parseDouble(sRebound);
         findB.deposit(amount);
         tf_storage.setText("" + findB.storage());
         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 sIsNo = tf_isbnNo.getText();
        int isNo = 0;
        try{
         isNo = Integer.parseInt(sIsNo);

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

        return;}
        Book findB = libraryL.findBook(isNo);
        if(findB!=null){
             tf_title.setText(findB.title());
             tf_storage.setText(""+findB.storage());
        }else JOptionPane.showMessageDialog(frame, "kontot finns ej! ");
    }
}
private class addBook implements ActionListener{
    public void actionPerformed(ActionEvent ae){
        System.out.println("CREATE");
        String holder = tf_title.getText();
        double amount = Double.parseDouble(tf_rebound.getText());
        Book addBook = new Book(title, amount);
        tf_isbnNo.setText("" + addBook.isbnNo());
        library.addAccount(addBook);
        tf_rebound.setText("");
        tf_storage.setText("" + addBook.storage());


    }
} }