Calender Manager Java Program

 Calender Manager Java Program and GUI

Java Code:

import java.awt.*;

import java.awt.event.ActionEvent;

import java.awt.event.ActionListener;

import javax.swing.*;

public class userInterface extends JFrame implements ActionListener {

       public CalenderManager calender;

       public JTextField Month, day, year;

       public JScrollPane Content;

       public JTextArea text;

       public JButton get, save;

       public JLabel m, d, y;

       public userInterface() {

              super("Calender manager");

              setLayout(new FlowLayout());

              calender = new CalenderManager();

              m = new JLabel("MONTH");

              d = new JLabel("DAY");

              y = new JLabel("YEAR");

              Month = new JTextField(12);

              day = new JTextField(12);

              year = new JTextField(12);

              add(m);

              add(Month);

              add(d);

              add(day);

              add(y);

              add(year);

              text = new JTextArea(10, 30);

              add(new JScrollPane(text));

              // Content = new JScrollPane();

              get = new JButton("GET");

              add(get);

              get.addActionListener((ActionListener) this);

              save = new JButton("SAVE");

              add(save);

              save.addActionListener(this);

             

       }

      

       @Override

       public void actionPerformed(ActionEvent e) {

              // TODO Auto-generated method stub

              CalenderManager c=new CalenderManager();

              if(e.getSource() == get){

                     text.setText(c.getEntry(Month.getText(), day.getText(), year.getText()));

              }

              if(e.getSource() == save){

                     text.setText(c.saveEntry(Month.getText(), day.getText(), year.getText(), text.getText()));

              }

             

       }

      

}

import java.io.File;

import java.io.FileInputStream;

import java.io.FileOutputStream;

import java.io.IOException;

import java.io.ObjectInputStream;

import java.io.ObjectOutputStream;

import javax.swing.JFileChooser;

public class CalenderManager {

       public String[] array;

       public CalenderManager() {

              String fname="base.dir";

              File dir = new File(fname);

              if (!dir.exists())

                     dir.mkdir();

              JFileChooser filechooser = new JFileChooser();

              filechooser.setCurrentDirectory(dir);

              filechooser.setFileSelectionMode(JFileChooser.DIRECTORIES_ONLY);

       }

       public String saveEntry(String month, String day, String year, String entry) {

              getFile(month, year);

              try {

                     array[Integer.parseInt(day) - 1] = entry;

                     FileOutputStream f;

                     ObjectOutputStream fop;

                     File file;

                     file = new File(month + " " + year + ".dat");

                     f = new FileOutputStream(file);

                     fop = new ObjectOutputStream(f);

                     fop.writeObject(array);

                     fop.close();

                     return "Success";

              } catch (Exception e) {

                     return "Error";

              }

       }

       private void getFile(String month, String year) {

              try {

                     File file = new File(month + " " + year + ".dat");

                     if (!file.exists()) {

                            file.createNewFile();

                           array = new String[31];

                     } else {

                           FileInputStream fw = new FileInputStream(file.getAbsoluteFile());

                           ObjectInputStream bw = new ObjectInputStream(fw);

                           array = (String[]) bw.readObject();

                           bw.close();

                     }

              } catch (IOException e) {

                     array = new String[31];

                     e.printStackTrace();

              } catch (ClassNotFoundException e) {

                     // TODO Auto-generated catch block

                     array = new String[31];

                     e.printStackTrace();

              }

       }

       public String getEntry(String month, String day, String year) {

              getFile(month, year);

              String data = array[Integer.parseInt(day) - 1];

              if (data != null) {

                     return data;

              }

              return "entry does not exist";

       }

}

import javax.swing.JFrame;

public class CalendarTest {

       /**

        * @param args

        */

       public static void main(String[] args) {

              // TODO Auto-generated method stub

              userInterface uI = new userInterface();

              uI.setSize(400, 400);

              uI.setVisible(true);

              uI.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);

       }

}

Program Snapshots: