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| 1 | package tabella; | |
| 2 | ||
| 3 | import javax.swing.*; | |
| 4 | import java.awt.*; | |
| 5 | ||
| 6 | public class Tabella implements java.awt.event.ActionListener {
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| 7 | ||
| 8 | public static void main (String args[]) {
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| 9 | createAndShowGUI(); | |
| 10 | } | |
| 11 | ||
| 12 | @Override | |
| 13 | public void actionPerformed(java.awt.event.ActionEvent evt) {
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| 14 | javax.swing.JOptionPane.showMessageDialog(null, evt.getActionCommand(), "Evento", JOptionPane.OK_OPTION); | |
| 15 | } | |
| 16 | ||
| 17 | private static void createAndShowGUI() {
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| 18 | ||
| 19 | JFrame frame = new JFrame("Grid");
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| 20 | frame.setLayout(new GridLayout(8,4)); | |
| 21 | JButton[] buttons = new JButton[61]; | |
| 22 | frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE); | |
| 23 | ||
| 24 | for(int i=0; i <= 60; ++i) {
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| 25 | - | buttons[i] = new JButton(""+i);
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| 25 | + | buttons[i] = new JButton(Integer.toString(i)); |
| 26 | frame.add(buttons[i]); | |
| 27 | buttons[i].addActionListener(new Tabella()); | |
| 28 | } | |
| 29 | ||
| 30 | frame.pack(); | |
| 31 | frame.setVisible(true); | |
| 32 | ||
| 33 | } | |
| 34 | ||
| 35 | ||
| 36 | } |
