tegusta

peli

May 5th, 2013
581
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  1.  import javax.swing.JFrame;
  2. import javax.swing.Action;
  3. import javax.swing.JButton;
  4. import javax.swing.JLabel;
  5. import javax.swing.JPanel;
  6. import java.awt.GridLayout;
  7. import javax.swing.JOptionPane;
  8. import java.awt.TextField;
  9. import java.awt.event.KeyAdapter;
  10. import java.awt.event.KeyEvent;
  11. import java.awt.event.MouseAdapter;
  12. import java.awt.event.MouseEvent;
  13.  
  14. public class Calcolatrice extends JFrame{
  15.    
  16.     private JButton[] numeri = new JButton[12];
  17.     private JButton[] operatori = new JButton[4];
  18.     private TextField casellaDiCalcolo = new TextField();
  19.      private String stampa = "";
  20.  
  21.    
  22.     public Calcolatrice(){
  23.         setVisible(true);
  24.         setSize(500,500);
  25.         setLayout(new GridLayout(3,1));
  26.         add(casellaDiCalcolo);
  27.         add(new TabNumeri());
  28.         add(new TabOperatori());
  29.         addMouseListener(new AscoltatoreMouse());
  30.         setDefaultCloseOperation(EXIT_ON_CLOSE);
  31.     }//Calcolatrice
  32.          
  33.    
  34.    class AscoltatoreMouse extends MouseAdapter{
  35.         public void mousePressed(MouseEvent e){
  36.         JButton bottoneMagico;
  37.             if(e.getComponent() instanceof JButton) {
  38.         bottoneMagico = (JButton)e.getComponent();
  39.         casellaDiCalcolo.setText(bottoneMagico.getText());
  40.         }//if
  41.         }//mousePressed
  42.     }//AscoltatoreMouse
  43.        
  44.        
  45.     class TabNumeri extends JPanel{
  46.         public TabNumeri(){  
  47.             setLayout(new GridLayout(4,3));
  48.             for(int i=9;i>-1;i--){
  49.                 numeri[i] = new JButton(""+i);
  50.                 add(numeri[i]);
  51.             }//for
  52.             numeri[10] = new JButton("=");
  53.             add(numeri[10]);
  54.             numeri[11] = new JButton(".");
  55.             add(numeri[11]);
  56.         }//TabNumeri
  57.     }//TabNumeri
  58.    
  59.     class TabOperatori extends JPanel{
  60.         public TabOperatori(){
  61.             setLayout(new GridLayout(1,4));
  62.             operatori[0] = new JButton("/");
  63.             add(operatori[0]);
  64.             operatori[1] = new JButton("*");
  65.             add(operatori[1]);
  66.             operatori[2] = new JButton("-");
  67.             add(operatori[2]);
  68.             operatori[3] = new JButton("+");
  69.             add(operatori[3]);
  70.         }//TabOperatori
  71.     }//TabOperatori
  72.  
  73. }//Calcolatrice
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