JButtons when pressed saved in array

Question

I'm working on my school project. My asigment is to make a piano game. The program works fine but my work stopped when i came to a problem. I would like to put the integers, which i get from pushing the specific JButton, into an array. For example if i would press JButton 3, JButton 4, and JButton 1, i would get in my array [3,4,1]. Please help me. Best regards. Here's my code:

import javax.swing.*;
import javax.sound.sampled.*;
import java.awt.event.*;
import java.awt.*;
import java.awt.Color;

class vse_v_enem extends JFrame implements ActionListener
{

public static void main(String [] arg){
    new vse_v_enem();              
}    

public vse_v_enem(){
    initSounds();
}

protected void initSounds(){
    sounds();
    zacetek();        
}

public void sounds(){

    for(int i=1;i<=13;i++)
         try{
            audioIn[i] = AudioSystem.getAudioInputStream(vse_v_enem.class.getResource("zvoki/"+i+".wav"));
            //System.out.println("zvoki/"+i+".wav.wav");
        } catch(javax.sound.sampled.UnsupportedAudioFileException e){

        } catch(Exception e){
            System.out.println("Hm....  something went wrong");
        }

}

public void zacetek (){ 
    JFrame okvir = new JFrame("Klaviaturska zabava");
    okvir.setBounds(500,400,416,214);
    JLayeredPane panel = new JLayeredPane(); 
    okvir.add(panel); 

    //int f[] = igra();        
    /**naredi crne tipke*/
    int crnih = 5; 
    int sirina = 30; 
    int visina = 113;        
    for(int i = 0; i<crnih;i++){
        JButton b = new JButton(""+(i+1));
        b.setFont(b.getFont().deriveFont((float)11));
        b.setForeground(Color.WHITE);
        b.setBackground(Color.BLACK);
        b.setSize(sirina,visina);             
        b.setLocation(i*50 + (sirina*3)-5,0);            
        b.addActionListener(this);

        panel.add(b,1,-1);

    }
    /** naredi bele tipke*/
    int belih = 8; 
    int sirina1 = 50; 
    int visina1 = 176;

    for (int i = 6; i<belih+6; i++){            

        JButton b = new JButton(""+i);
        b.setBackground(Color.WHITE);
        b.setLocation((i-6)*sirina1,0);   
        b.setSize(sirina1,visina1);
        b.addActionListener(this);                    
        panel.add(b,0,-1);

    }        

    okvir.setVisible(true);   
}    

public void predvajajZvBesedilo(AudioInputStream audioIn){  
    sounds();

    try {
        clip = AudioSystem.getClip();
        clip.open(audioIn);            
    } catch(Exception e) {};
    clip.setFramePosition(0); 
    clip.start();
}

public void tabela(int tab){              
}

public void actionPerformed(ActionEvent e){

    JButton tempButton = (JButton)e.getSource();
    System.out.print(  tempButton.getText() + " " );           

    int clipNr = Integer.valueOf(tempButton.getText());
    //tabela(tab[clipNr]);
    predvajajZvBesedilo( audioIn[clipNr]);

}

public int[] igra(){        
    int t [] = {4,5,8,6};
    System.out.print("[ ");
    for(int i = 0; i < t.length; i++){
        //t[i] = (int)(Math.random()*13+1);            
        System.out.print(t[i]+" "); 

    }      
    System.out.print("] ");
    System.out.println();
    System.out.println();

    return t;
}

public void delay (int i){
    try {
        Thread.sleep(i*1000);
    } catch(InterruptedException ex) {
        Thread.currentThread().interrupt();
    }
}

private JFrame okvir = null;
private Clip clip = null;
int [] tab = new int [igra().length];

AudioInputStream audioIn[] = new AudioInputStream[14];

}

Answer 1

You need to add JButton to your JFrame. Then add ActionListener to your buttons with help of addActionListener method. In method actionPerformed of ActionListener you need to determine button which is pressed like next way if(e.getSource() == button1) array[i] = 1; where e is ActionEvent parametr. Use one listener for all buttons, here it's your frame . I think it help you.