Java GUI Basic 2

Example 1:
Өнөөдрийн пост бичлэгээр netbeans ашиглан хялбархан програм хийх талаар оруулъя. Уг програм нь JFrame form ашиглан JTable-д өгөгдөл нэмэх, засах, устгах жишээ юм.

1.       Эхлээд дараах кодыг бичъе: / DemoTable бол классын нэр юм. /

    String[] data = new String[2];

    DefaultTableModel model;

    public DemoTable() {

        initComponents();

        model = new DefaultTableModel();

        model.addColumn("Name");

        model.addColumn("Team");

    }

2.       Нэмэх товчны код:

        data[0] = JOptionPane.showInputDialog("Enter name:");

        data[1] = JOptionPane.showInputDialog("Enter team:");

        model.addRow(new Object[]{data[0], data[1]});

        jTable1.setModel(model);

3.       Засах товчны код:

       data[0] = JOptionPane.showInputDialog("Change name:");

        data[1] = JOptionPane.showInputDialog("Change team:");

        jTable1.getModel().setValueAt(data[0], jTable1.getSelectedRow(), 0);

        jTable1.getModel().setValueAt(data[1], jTable1.getSelectedRow(), 1);

4.       Устгах товчны код:
//
//
//

Одоо дараах програмыг өөр хэлбэрээр / массив ашиглан динамик шинжтэй / дахин зохиоё.

1.         Дараах хоёр хувьсагчийг гишүүн хувьсагчаар нэмлээ.
Object[][] data = null;   
String[] columnNames = new String[2];

2.       Хүснэгт үүсгэх товчны код: / instantiate table button /
 columnNames[0] = "Name";
columnNames[1] = "Team";
 data = new Object[1][2];
data[0][0] = JOptionPane.showInputDialog("Enter name:");
data[0][1] = JOptionPane.showInputDialog("Enter team:");
 jTable1.setModel(new DefaultTableModel(data, columnNames));

3.       Мөр нэмэх товчны код:
Object[][] temp = new Object[data.length+1][2];
for( int i = 0; i<data.length; i++){

            temp[i][0] = data[i][0];

            temp[i][1] = data[i][1];

        }
temp[data.length][0] = JOptionPane.showInputDialog("Enter name:");

       temp[data.length][1] = JOptionPane.showInputDialog("Enter team:");

        data = temp;

        jTable1.setModel(new DefaultTableModel(temp, columnNames));

4.       Мөр засах товчны код:

        if(jTable1.getSelectedRow()>=0){

        String name = JOptionPane.showInputDialog("Change name:");

        String team = JOptionPane.showInputDialog("Change team:");

        data[jTable1.getSelectedRow()][0] = name;

        data[jTable1.getSelectedRow()][1] = team;

        jTable1.setModel(new DefaultTableModel(data, columnNames));

        // jTable1.getModel().setValueAt(name, jTable1.getSelectedRow(), 0);

        // jTable1.getModel().setValueAt(team , jTable1.getSelectedRow(), 1);

        }

        else {

            JOptionPane.showMessageDialog(this, "You must select row!");

        }

5.       Мөр устгах:       
int pos = jTable1.getSelectedRow();

        Object[][] temp = new Object[data.length - 1][2];

        for(int i = 0; i<pos; i++)

        {

            temp[i][0] = data[i][0];

            temp[i][1] = data[i][1];

        }

        for( int i = pos+1; i<data.length; i++){

            temp[i-1][0] = data[i][0];

            temp[i-1][1] = data[i][1];

        }

        data = temp;

        jTable1.setModel(new DefaultTableModel(data, columnNames));

Example 2:

Using JMenubar:

Save Menu Click:

        JOptionPane.showMessageDialog(this, "Saved!");

        JMenuItem itm = new JMenuItem("Exit");

        itm.addActionListener(new ActionListener() {

            @Override

            public void actionPerformed(ActionEvent e) {

                JOptionPane.showMessageDialog(Tut30.this, "Exit!");

                System.exit(0);

            }

        });

        jMenu1.add(itm);

Using MouseClickListener:

Button -> MouseReleased
        if(evt.getButton() == MouseEvent.BUTTON1)

            JOptionPane.showMessageDialog(this, "Left Clicked!");

        else if (evt.getButton() == MouseEvent.BUTTON2)

            JOptionPane.showMessageDialog(this, "Middle Clicked!");

        else if (evt.getButton() == MouseEvent.BUTTON3)

            JOptionPane.showMessageDialog(this, "Right Clicked!");

Using JPopupMenu:

    private void jButton1MouseReleased(java.awt.event.MouseEvent evt) {                                      

        if (evt.getButton() == MouseEvent.BUTTON3)

        {       

            jPopupMenu1.removeAll();

            JMenuItem itm = new JMenuItem("Copy");

        itm.addActionListener(new ActionListener() {

            @Override

            public void actionPerformed(ActionEvent e) {

                JOptionPane.showMessageDialog(Tut30.this, "Copied!");

            }

        });

        jPopupMenu1.add(itm);

        jPopupMenu1.show(jButton1, evt.getX(), evt.getY());

        }

    }