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JAVA : 記帳小程式

Joji(飛航模式) | 2017-06-07 23:57:08 | 巴幣 12 | 人氣 1509

這次是自己做的小程式，之後會再修改一些BUG，增加更多功能
例如:
1.可以刪除所有帳目資料(洗白資料檔案)
2.可以查詢特定日期的帳目
3.可以刪除特定日期的帳目

這次的程式分成4個public class 其中有自製一個ArrayList是因為在輸入、輸出物件到檔案時，會牽涉到Object型別與泛型的問題，我還沒辦法解決，所以只能自製一個ArrayList。

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AccountGUI:

import java.io.*;
import javax.swing.*;
import java.awt.*;
import java.awt.event.*;
import java.lang.*;

public class AccountGUI {
    private JFrame frame;
    private JPanel panel;
    private ArrayList accountList;
    private Account account;
    private JButton enterbutton;
    private JButton displaybutton;
    private JButton savebutton;
    private JButton deletebutton;
    private JTextArea area;
    private JTextField datefield;
    private JTextField breakfastfield;
    private JTextField lunchfield;
    private JTextField dinnerfield;
    private JTextField othersfield;
    private StreamHelper streamhelper;


    public void buildGUI () {
        frame = new JFrame("啷噹記帳士");
        frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);

        accountList = new ArrayList();
        streamhelper = new StreamHelper();

        BorderLayout layout = new BorderLayout();
        panel = new JPanel(layout);

        Box rightbox = new Box(BoxLayout.Y_AXIS);
        Box centerbox = new Box(BoxLayout.Y_AXIS);
        Box leftbox = new Box(BoxLayout.Y_AXIS);
        panel.add(BorderLayout.EAST, rightbox);
        panel.add(BorderLayout.CENTER, centerbox);
        panel.add(BorderLayout.WEST, leftbox);
        panel.setBorder(BorderFactory.createEmptyBorder(10, 10, 10, 10));

        area = new JTextArea(10, 10);
        area.setLineWrap(true);
        area.setSelectionColor(Color.blue);
        JScrollPane scroller = new JScrollPane(area);
        scroller.setVerticalScrollBarPolicy(ScrollPaneConstants.VERTICAL_SCROLLBAR_ALWAYS);
        scroller.setHorizontalScrollBarPolicy(ScrollPaneConstants.HORIZONTAL_SCROLLBAR_NEVER);
        panel.add(BorderLayout.NORTH, scroller);

        datefield = new JTextField(10);
        breakfastfield = new JTextField(5);
        lunchfield = new JTextField(5);
        dinnerfield = new JTextField(5);
        othersfield = new JTextField(5);
        centerbox.add(datefield);
        centerbox.add(breakfastfield);
        centerbox.add(lunchfield);
        centerbox.add(dinnerfield);
        centerbox.add(othersfield);

        Font font = new Font("LALA", Font.BOLD, 14);
        JLabel datelabel = new JLabel("日期(格式為XXXX/XX/XX)");
        datelabel.setFont(font);
        JLabel breakfastlabel = new JLabel("早餐支出");
        breakfastlabel.setFont(font);
        JLabel lunchlabel = new JLabel("午餐支出");
        lunchlabel.setFont(font);
        JLabel dinnerlabel = new JLabel("晚餐支出");
        dinnerlabel.setFont(font);
        JLabel otherslabel = new JLabel("其他支出");
        otherslabel.setFont(font);
        leftbox.add(datelabel);
        leftbox.add(breakfastlabel);
        leftbox.add(lunchlabel);
        leftbox.add(dinnerlabel);
        leftbox.add(otherslabel);

        enterbutton = new JButton("輸入帳目");
        savebutton = new JButton("儲存到帳目");
        displaybutton = new JButton("列出所有帳目");
        rightbox.add(savebutton);
        rightbox.add(displaybutton);
        centerbox.add(enterbutton);

        savebutton.addActionListener(new SaveListener());
        displaybutton.addActionListener(new DisplayListener());
        enterbutton.addActionListener(new EnterListener());

        frame.setSize(300, 300);
        frame.getContentPane().add(panel);
        frame.pack();
        frame.setVisible(true);
    }

    public class SaveListener implements ActionListener {
        public void actionPerformed (ActionEvent ev) {
            if (account == null) {
                area.setText("錯誤!! 你沒有輸入帳目");
            }
            else {
            accountList.add(account);
            streamhelper.output(accountList);
            account = null;
            }
        }
    }

    public class EnterListener implements ActionListener {
        public void actionPerformed (ActionEvent ev) {
            String date = datefield.getText();
            String breakfast = breakfastfield.getText();
            String lunch = lunchfield.getText();
            String dinner = dinnerfield.getText();
            String others = othersfield.getText();

            datefield.setText("");
            breakfastfield.setText("");
            lunchfield.setText("");
            dinnerfield.setText("");
            othersfield.setText("");

            account = new Account(Integer.parseInt(breakfast), Integer.parseInt(lunch),
             Integer.parseInt(dinner), Integer.parseInt(others), date);
        }
    }

    public class DisplayListener implements ActionListener {
        public void actionPerformed (ActionEvent ev) {
            accountList = streamhelper.input();
            area.setText("");
            for (int i = 0; i < (accountList.size()); i++) {
                area.append(accountList.get(i).printAccount()+"\n");
            }
        }
    }

    public class DeleteListener implements ActionListener {
        public void actionPerformed (ActionEvent ev) {
            accountList = null;
            streamhelper.output(accountList);
        }
    }

    public static void main(String[] args) {
        AccountGUI gui = new AccountGUI();
        gui.buildGUI();
    }
}

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Account:

import java.io.*;
import java.lang.*;

public class Account implements Serializable{
    private int totalExpenditureOfDay ;
    private int expenditureOfDinner;
    private int expenditureOfBreakfast;
    private int expenditureOfLunch;
    private int expenditureOfOthers;
    private String date;                            //格式 20XX/XX/XX

    public Account(int expenditureOfBreakfast, int expenditureOfLunch, int expenditureOfDinner,
     int ExpenditureOfOthers, String date) {
         this.expenditureOfBreakfast = expenditureOfBreakfast;
         this.expenditureOfLunch = expenditureOfLunch;
         this.expenditureOfDinner = expenditureOfDinner;
         this.expenditureOfOthers = expenditureOfOthers;
         this.date = date;
     }

     public int getExpenditureOfDinner() {
         return expenditureOfDinner;
     }

     public int getExpenditureOfBreakfast() {
         return expenditureOfBreakfast;
     }
     public int getExpenditureOfLunch() {
         return expenditureOfLunch;
     }
     public int getExpenditureOfOthers() {
         return expenditureOfOthers;
     }
     public int getTotalExpenditureOfDay() {
         return totalExpenditureOfDay;
     }

     public void calculateTotalExpenditureOfDay () {
         this.totalExpenditureOfDay = (expenditureOfDinner)+(expenditureOfBreakfast)+
         (expenditureOfLunch)+ (expenditureOfOthers);
     }

     public String printAccount() {
         String detail = "日期: "+date+" 早餐支出: "+Integer.toString(this.expenditureOfBreakfast)
         +" 午餐支出: "+Integer.toString(this.expenditureOfLunch)+" 晚餐支出: "+Integer.toString(this.expenditureOfDinner)
         +" 其他支出: "+Integer.toString(this.expenditureOfOthers);

         return detail;
     }
}
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StreamHelper:

import java.io.*;

public class StreamHelper {

    public void output(ArrayList output) {
        try {
        ObjectOutputStream os = new ObjectOutputStream(new FileOutputStream("Account.ser"));
        os.writeObject(output);
        } catch (IOException ex) {
            ex.printStackTrace();
        }
    }

    public ArrayList input() {
        ArrayList list = null;

        try {
        ObjectInputStream is = new ObjectInputStream(new FileInputStream("Account.ser"));
        list = (ArrayList) is.readObject();
        } catch (Exception ex) {
            ex.printStackTrace();
        }

        return list;
    }
}
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ArrayList:

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

public class ArrayList implements Serializable {
    private Account[] elems;
    private int next;
    private static final long serialVersionUID = -4560544466L;

    public ArrayList(int capacity) {
        elems = new Account[capacity];
    }

    public ArrayList() {
        this(50);
    }

    public void add (Account o) {
        if (next == elems.length) {
            elems = Arrays.copyOf(elems, elems.length*2);
            elems[next++] = o;
        }
        else {
            elems[next++] = o;
        }
    }

    public Account get (int i) {
        return elems[i];
    }

    public Account[] getElems() {
        return elems;
    }

    public int size() {
        return next;
    }
}

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